143 results about "Nanofluid" patented technology

The invention discloses an S-shaped micro-channel heat dissipation device with a double-layer turbulent flow structure and a use method, belongs to the field of liquid cooling heat dissipation, and is suitable for heat dissipation of a high-heat-flux device or a heat conduction device. The device comprises a base, a cover plate, a micro-channel body, turbulent flow columns, a flow guide structure, O-shaped sealing rings and quick-screwing connectors, the micro-channel body is provided with S-shaped channels which are vertically symmetrical, the turbulent flow columns are evenly arranged in the centers of the channels, and the top ends of the turbulent flow columns are flush with the end face of the micro-channel body. The turbulent flow columns can be rectangular columns or water-drop-shaped columns which are arranged in a single row or multiple rows at equal intervals and are matched with the flow guide structure to achieve efficient flow division of cold and hot fluid and interlayer heat interaction. Fluid mixing is strengthened through the centrifugal force of the S-shaped channel, a heat boundary layer is destroyed by the turbulent flow columns, and the problems that a traditional straight channel is low in heat exchange efficiency and uneven in temperature distribution are solved. Deionized water or nanofluid is selected as cooling liquid, closed circulation is formed by entering and exiting of the cooling liquid through the quick-screwing connector, and the adaptive scene and the comprehensive performance of the device are further expanded through the multiple rows of turbulent flow columns or the water-drop-shaped turbulent flow columns.

The invention relates to the technical field of nanofluid enhanced heat transfer simulation, in particular to a molecular dynamics-based mixed nanofluid heat transfer characteristic analysis method, which comprises the following steps of: constructing a molecular model comprising copper, graphene nanoparticles and an ionic liquid / water mixed base solution, and calculating the heat transfer characteristic of the mixed nanofluid through a distribution potential function and a periodic boundary condition; and performing energy minimization and molecular dynamic relaxation to achieve thermodynamic equilibrium. A steady-state temperature gradient is established based on the unbalanced molecular dynamics principle, and the thermal conductivity is calculated according to the Fourier law. Microcosmic parameters such as a radial distribution function, mean square displacement and the number of hydrogen bonds are synchronously analyzed, and a coupling mechanism of interaction and heat transfer performance of the nano-particle-base fluid interface is disclosed. According to the method, the heat transfer characteristic of the mixed nanofluid can be clarified on the molecular scale, and an efficient and reliable analysis means is provided for nanofluid screening and design in application of a solar heat collector, a heat management system and the like.

The invention discloses a nanofluid mixed matrix membrane as well as a preparation method and application thereof, and belongs to the field of gas separation. The nanofluid mixed matrix membrane comprises a polymer matrix and a nanofluid filler, the nanofluid filler is of a three-dimensional layered structure, a core layer is a porous material layer, a secondary outer layer is a coupling agent connecting layer, and an outermost layer is an organic matter coronal layer containing a CO2-philic group. The coronal layer improves the compatibility of the porous material and the polymer matrix and increases the CO2 affinity of the mixed matrix membrane, not only increases the diffusivity of the mixed matrix membrane, but also increases the CO2 solubility, and due to the unique connection mode between the porous core and the coronal layer, the thermal stability of the porous core and the coronal layer is also enhanced. Therefore, the prepared novel efficient mixed matrix membrane has good gas separation performance and thermal stability and is especially suitable for CO2 separation, and CO2 / H2 of the product breaks through the Robeson upper limit in 2008.

Provided are a wafer cleaning method capable of uniformly cleaning an entire area of a wafer, and a wafer cleaning apparatus to which the method is applied. The method includes positioning a cleaning tool to face a surface of the wafer requiring cleaning; supplying a cleaning liquid containing ions to an area between the wafer and the cleaning tool; adjusting a spacing between a surface of the wafer and the cleaning tool for a viscosity of the cleaning liquid therebetween to be controlled by an electric field; and relatively rotating the wafer from the cleaning tool while the electric field being applied to at least a portion of the cleaning liquid, thereby cleaning the surface of the wafer with the cleaning liquid.

This application discloses a nanofluid, its preparation method, and its applications. The nanofluid comprises, by mass fraction: 0.01% to 0.7% modified nanoparticles, 1% to 4% surfactant, 0.2% to 0.6% polymer, and 0.01% to 0.2% short-chain alkanes, with the balance being water. The nanofluid provided in this application, through the synergistic effect between specific components, can significantly improve C / W foam stability and enhance oil recovery. Foam displacement agents prepared using this nanofluid can improve permeability and asphaltene content after displacement, exhibiting good overall performance.

The application discloses a preparation method of a high-stability cellulose nanofluid film, and a product and application thereof, and belongs to the field of energy conversion and material science. The method comprises the following steps: adding modified cellulose into an ionic liquid to prepare a solution by heating; dropping and coating the solution onto the surface of a porous polymer film, and preparing a gel film by heating and vacuum treatment; and obtaining the nanofluid film after water soaking and drying of the gel film. The nanofluid film adopts an embedded structure, the cellulose layer is a small-pore structure, the porous polymer film is a large-pore structure, and the nanofluid film has etching and three-dimensional network channel structures. The preparation process is simple and the conditions are mild, the prepared film has excellent ion rapid selective transmission performance, acid-base stability and long-term operation stability, can efficiently convert salinity gradient energy into electric energy, and has a good application prospect in the field of salt-difference osmotic energy utilization.

This invention discloses a ternary composite oil displacement system based on the synergistic effect of nanofluids and polymers, belonging to the field of petroleum extraction technology. It includes a pretreatment unit, a nanofluid supply unit, a temperature- and salt-resistant polymer supply unit, a composite mixing unit, an online synergistic injection unit, and a formation synergistic displacement unit. The outlet of the pretreatment unit is connected to the composite mixing unit, and the nanofluid supply unit and the temperature- and salt-resistant polymer supply unit are connected in parallel to the composite mixing unit. Through the synergistic effect of nanofluids and temperature- and salt-resistant polymers, multiple synergistic effects of "dispersion stabilization, viscosity enhancement, seepage control, and residual oil stripping" are achieved. The modified nanoparticles and temperature- and salt-resistant polymer molecules form hydrogen bonds and electrostatic adsorption complexes, which not only significantly improve the solubility and viscosity stability of the polymer in high-temperature, high-salinity formation water environments but also prevent polymer molecular chain degradation.

The invention belongs to the technical field of carbon dioxide capture and regeneration, and particularly relates to a magnetic nanofluid pseudo-homogeneous-microwave synergistic carbon dioxide desorption method. The invention provides an application of a nickel ferrite material as a catalyst in carbon dioxide absorption pregnant solution regeneration. According to the invention, the carrier-free and undoped spinel-type structure NixFe3-xO4 is used as a catalyst for carbon dioxide absorption rich liquid regeneration, and the catalyst has microwave absorption, catalytic activity and magnetic responsiveness. According to the desorption method provided by the invention, the nickel ferrite material forms a stable quasi-homogeneous dispersion system in the carbon dioxide absorption rich solution, and then under the conditions of low-temperature microwave radiation and stirring, the CO2 desorption load rate reaches more than or equal to 55% within 10-30 min, the desorption reaction rate is increased by more than or equal to 20% compared with that of traditional thermal regeneration, and the desorption time is reduced by more than half compared with that of traditional thermal regeneration.

This invention discloses a thermal field temperature equalization control method and system based on aerodynamic layout optimization, belonging to the field of thermal field temperature control technology. The method is applied to a gas delivery system in semiconductor thin film deposition processes, including: constructing an aerodynamic-thermal field coupling model to quantitatively analyze the influence of pipeline geometry on the temperature field; physically optimizing the pipeline structure based on the analysis results to reduce airflow disturbance; deploying a sensor network and implementing dual-domain collaborative dynamic control, combining a fuzzy PID algorithm to stabilize airflow, and using a model predictive control algorithm to pre-adjust heating power to compensate for thermal hysteresis; embedding microchannel heat exchangers filled with phase change materials and nanofluids in areas with the risk of instantaneous thermal disturbance to suppress temperature spikes; and performing self-optimization through a digital twin. This invention can systematically improve gas temperature uniformity, response speed, and long-term stability from source to end, meeting the stringent requirements of semiconductor processes.

This invention provides a method for preparing a high-salinity zinc oxide-resistant nanofluid mediated by Halomonas sp. and its application in enhancing oil recovery. Specifically, it includes: a Halomonas sp. strain CDH-2, with accession number CCTCC NO: M 2025786, which can rapidly grow in high-concentration salt solutions and produce salt-resistant extracellular metabolites. Fermenting and culturing CDH-2 under high-salt conditions yields a fermentation broth with a surface tension below 30 mN / m. Mixing and culturing the obtained fermentation broth with a metal precursor solution yields a high-salinity-resistant metal nanofluid. The resulting metal nanofluid maintains good stable dispersibility in high-salinity water and effectively reduces oil-water interfacial tension. It alters the wettability of oil-wetting surfaces, emulsifies and disperses crude oil, and reduces crude oil viscosity. Therefore, it can be used as an enhanced oil recovery agent in high-salt reservoirs and is widely applied in oilfield flooding, well huff and puff, and heavy oil viscosity reduction.

The invention discloses a high-efficiency low-energy-consumption solvent for removing organic sulfur in gas as well as a preparation method and application of the high-efficiency low-energy-consumption solvent, and belongs to the technical field of gas purification. The solvent is formed by compounding a physical absorption organic solvent, a chemical absorption alcohol amine solution and a nitrogen-doped activated carbon catalyst nanofluid. The nitrogen-doped activated carbon catalyst is prepared by taking coconut shell or shell activated carbon as a raw material, mixing the coconut shell or shell activated carbon with a high-content nitrogen compound, pickling, drying, grinding and calcining by a specific procedure, and the surface of the nitrogen-doped activated carbon catalyst is rich in nitrogen-containing functional groups. When the catalyst is dispersed in an alcohol amine-organic solvent mixed system, a stable carbon nanofluid can be formed, and the heat transfer and mass transfer performance of the system can be remarkably improved. The solvent integrates the advantages of physical absorption and chemical absorption, and shows high absorption capacity and rate in the desulfurization process by virtue of the synergistic effect of the nanofluid; in the regeneration process, the heat and mass transfer efficiency is improved, so that the energy consumption is obviously reduced, and the method is particularly suitable for treating industrial gas containing organic sulfur.

The dynamic programmable nanofluid memristor comprises a tubular channel and a flexible built-in block, the tubular channel is filled with an electrolyte solution, and the inner surface of the tubular channel and the outer surface of the built-in block have hydrophilicity; the sizes of the tubular channel and the built-in block are gradually changed and have opposite changing directions, the built-in block is in clearance fit with the interior of the tubular channel to form a nanometer channel of a double-cone nested structure, the nanometer channel comprises a parallel section and a conical section, the size of the parallel section is smaller than that of the conical section, and the conical section is larger than the parallel section. The memristive effect is triggered by the ion concentration difference of the parallel section and the conical section under the action of an external electric field, the strength of the memristive effect is regulated and controlled by changing the lengths of the parallel section and the conical section, the dynamic regulation of the memristive performance is realized, and the memristive device has the advantages of high stability and reliability, flexible regulation and control mode, strong designability and the like.

This application relates to the field of liquid cooling technology, and discloses a highly stable, anti-sagging liquid-cooled composite nanofluid and its preparation method. The composite nanofluid comprises: deionized water and 1,2-propanediol as the continuous phase, graphene and single-walled carbon nanotube composite particles as the dispersed phase, and introduces a ternary rheological control system composed of a rheology modifier, polyvinylpyrrolidone, and a polymeric dispersant in a specific ratio, endowing the fluid with thixotropic and anti-sagging properties. This application improves the overall service stability and thermal management reliability of the liquid-cooled composite nanofluid under alternating high-speed pumping and static shutdown conditions.

The invention discloses a method and a system for determining particle size distribution of ice slurry containing a nanofluid salt solution, and relates to the technical field of ice slurry refrigeration, the method comprises the following steps: coupling a local concentration field of nanoparticles in a solution with a driving force in a phase change process to obtain a control relationship of the ice slurry containing the nanofluid salt solution; defining the ice crystal as a discrete phase, and establishing a dynamic relationship between the nucleation rate and the growth rate; solving the control relation based on the initial parameters of the dynamic relation, extracting size information of the ice crystals from a solving result, and dividing a plurality of characterization intervals according to the size information to obtain first volume fraction distribution of the ice crystals; according to the method disclosed by the invention, a dynamic relationship between nucleation and growth of an ice crystal dispersed phase is established by coupling a nanoparticle local concentration field and a phase change process driving force, and then theoretical solution and iterative calibration of experimental data are combined, so that accurate determination of the particle size distribution of the ice slurry containing the nanofluid salt solution is realized.

The invention discloses a zinc oxide-multi-walled carbon nanotube mixed nanofluid material as well as preparation and application thereof. The zinc oxide-multi-walled carbon nanotube mixed nanofluid material is prepared through S1, material preparation, S2, pretreatment, S3, preliminary dispersion and S4, ultrasonic treatment. The material can be applied to a high-efficiency heat exchanger, a solar heat collection system or an electronic equipment cooling system. According to the invention, a unique point-line synergistic three-dimensional heat-conducting network is constructed by compounding a multi-walled carbon nanotube with a one-dimensional structure and zinc oxide nanoparticles with a zero-dimensional structure; in the composite system, the zinc oxide nano-particles are used as a thermal bridge to effectively connect the adjacent carbon nano-tubes, so that the heat flow transmission path is obviously increased, and the interface thermal resistance is reduced; meanwhile, the production cost and the energy consumption can be reduced, and a technical guarantee is provided for large-scale application of the nanofluid in the industrial fields such as a solar heat collection system.

This invention relates to the field of nanofluid preparation technology and discloses a gradient dispersion preparation method for highly stable, low-agglomeration nanofluids, comprising the following steps: S1, drying, sieving, and surface activation pretreatment of nanoparticles; S2, mixing the pretreated nanoparticles with a modifier; S3, sequentially adding a pre-wetting liquid, a transition dispersion liquid, and a base liquid to form a transition suspension; S4, applying a gradient composite energy field to the transition suspension for graded deagglomeration; S5, adjusting the pH and viscosity of the deagglomerated suspension and adding a polymeric stabilizer; S6, precisely filtering the stabilized nanofluid to obtain a highly stable, low-agglomeration nanofluid. By employing a full-chain gradient dispersion technology solution involving nanoparticle pretreatment, surface modification, gradient wetting pre-dispersion, gradient composite energy field deagglomeration, multi-dimensional stabilization control, and multi-stage precision filtration, the problems of easy agglomeration, incomplete dispersion, and uneven particle size distribution of nanoparticles are solved.

This invention discloses a method and apparatus for micro-lubrication of magnetic shear-thickening nanofluid, belonging to the field of micro-lubrication and cooling in machining. The method is based on a micro-lubrication system, which includes an air pump, a pressure valve, a Rank-Hillsch vortex tube, a reservoir, a reciprocating pump, a flow controller, and a micro-lubrication nozzle. The reciprocating pump pressurizes and delivers the magnetic shear-thickening fluid from the reservoir to the micro-lubrication nozzle. Compressed air, after being pressurized by the pressure valve, enters the vortex tube for diversion. The hot airflow at the hot end of the vortex tube preheats the fluid in the reservoir, shear-thinning it to improve its flowability. The low-temperature cold air at the cold end mixes with the fluid within the nozzle. Under the influence of the built-in magnetic field in the nozzle, a low-temperature nano-atomized particle cluster spray is formed and directed towards the machining area. Upon contact with the workpiece, the spray transforms into the magnetic shear-thickening fluid, forming a lubricating film at the tool-workpiece interface, achieving efficient cooling and lubrication and improving machining quality.

An endovascular system for targeted photothermal ablation of perivascular nerves is disclosed. A catheter includes a fluid lumen communicating with outlet orifices, and an electromagnetic radiation emitter positioned within a support structure that apposes the array against a vessel wall. A proximal console independently controls irradiation and injection parameters. In use, a nanofluid comprising plasmonic nanoparticles, such as gold nanorods tuned for near-infrared absorption, is injected into or through the vascular wall and subsequently irradiated intraluminally; the nanofluid absorbs energy and converts it to heat to ablate adjacent nerve fibers while reducing non-target tissue heating.

The invention discloses a thermal field temperature equalization control method and system based on aerodynamic layout optimization, and belongs to the technical field of thermal field temperature control. The method is applied to a gas delivery system of a semiconductor thin film deposition process and comprises the following steps: constructing a pneumatic-thermal field coupling model, and quantitatively analyzing the influence of geometric characteristics of a pipeline on a temperature field; performing physical optimization on the pipeline structure based on the analysis result to reduce airflow disturbance; deploying a sensor network and executing double-domain cooperative dynamic control, stabilizing airflow in combination with a fuzzy PID algorithm, and presetting heating power by using a model predictive control algorithm to compensate thermal lag; a micro-channel heat exchanger filled with a phase change material and nanofluid is embedded in the area with the instantaneous thermal disturbance risk, so that the temperature peak is restrained; and self-optimization is carried out through the digital twinborn body. The gas temperature uniformity, the response speed and the long-term stability can be systematically improved from the source to the tail end, and the harsh requirements of the semiconductor process are met.

A wafer cleaning method capable of uniformly cleaning the entire area of ​​a wafer and a wafer cleaning apparatus to which the method is applied are provided. [Solution] The wafer cleaning method includes the steps of: positioning a cleaning tool (40) facing the wafer surface that requires cleaning; adjusting the distance between the wafer surface and the cleaning tool (40); supplying a cleaning liquid (55) containing ions between the wafer surface and the cleaning tool (40); applying an electric field to at least a portion of the area where the cleaning liquid (55) is present; and rotating the wafer (10) and the cleaning tool (40) relative to each other to clean the wafer surface with the cleaning liquid (55).

The application relates to the computer technical field, in particular to a nanofluid-assisted monocrystalline silicon cutting method based on molecular dynamics simulation and a computer system. By establishing a model of monocrystalline silicon, abrasive particles and nanofluid, cutting parameters in a nanofluid-assisted monocrystalline silicon cutting process are obtained through molecular dynamics simulation, the reduction effect of nanofluid-assisted lubrication on processing temperature and stress is intuitively quantified, and the feasibility and advantages of the nanofluid-assisted cutting monocrystalline silicon method are added. The application aims to solve the problem of how to simulate nanofluid-assisted monocrystalline silicon cutting through molecular dynamics simulation.

The invention belongs to the technical field of molecular dynamics simulation and nanofluid regulation and control, and particularly relates to a method for researching a limited water system in a carbon nanotube under the influence of a magnetic field based on molecular dynamics simulation. Molecular dynamics simulation is carried out on a water transmission process in the carbon nanotubes with different tube lengths under the influence of a magnetic field, so that a change rule of a structure and a transmission behavior of water molecules in the carbon nanotubes under different magnetic field intensities can be conveniently obtained, and an experimental method is not needed; the specific influence of the magnetic field intensity or the parameters of the carbon nano tube on the water transmission behavior can be simply and conveniently explored, so that the water molecule hydrogen bond network structure and orientation dynamics can be accurately regulated and controlled at the atomic molecule scale by optimizing the magnetic field parameters, and the water transmission process of the nano channel is optimized; and a new way is provided for designing and realizing a high-throughput nanofluid device.

The invention relates to the improvement of the cooling efficiency of electric motors by utilizing the internal magnetic field and magnetic fluids, aiming to enhance convective heat transfer for improved cooling performance. In this invention, cooling channels are positioned near the coil windings and stator regions—where heat generation is most intense—by making use of the magnetic field already present within the motor. Magnetic fluids (magnetic liquid metals or magnetic nanofluids) are employed as the coolant, and magnetohydrodynamic (MHD) effects are induced through the Lorentz forces exerted by the magnetic field, which alter the flow velocity profile and enhance convective heat transfer. By this method, while the motor temperature is reduced, its cooling capacity is significantly increased. The invention comprises the components rotor (1), stator (2), shaft (3), coil windings (4), housing (5), magnets (6), and cooling channels (7).

The present application relates to a kind of based on electric osmosis effect tool-chip interface nanofluid infiltration method, belong to cutting technical field.The method of the present application includes the following steps, S1, microtexture is processed in tool rake face using dry etching assisted laser technology, and microtextured tool is obtained;S2, under stirring state, modifier is added to nanoparticle suspension, after reaching adsorption equilibrium, modified nanoparticle is obtained by centrifugation, washing, drying, after modified nanoparticle is made into powder, it is dissolved in water, and after mixing, modified nanofluid cutting fluid is obtained;S3, modified nanofluid cutting fluid is sprayed by cutting processing device, and microtextured tool is used to carry out cutting processing to workpiece, and the infiltration of modified nanofluid cutting fluid through microtexture to tool-chip contact area is completed.By self-excitation electric field assisted microtexture channel electroosmosis driving method has the advantages of low driving energy field intensity, high efficiency, controllability, simple structure and the like.

The invention discloses an integrated solar water purification, power generation and hydrogen production system which comprises a floating plate, a device shell, a distillation and hydrogen production device, a storage battery, a control system, a seawater taking and purifying device, a hydrogen storage bottle and a water storage bottle. The floating plate floats on the sea surface and is internally provided with a groove embedded into the device shell, so that internal equipment is protected from being impacted by the external environment. A rotating mechanism is arranged above the device shell and connected with the solar photovoltaic panel, and the rotating mechanism can adjust the orientation and the inclination angle of the photovoltaic panel so as to achieve maximum utilization of solar energy. Seawater purification, solar power generation and hydrogen preparation are integrated on the same floating platform, the number and occupied space of equipment are reduced, and the device is suitable for seaborne and space limited scenes. The condensation aluminum plate is in contact with seawater to keep low temperature, and the aerogel layer reduces heat loss and improves distillation efficiency; the carbon black nanofluid is heated to increase the electrolysis temperature, and the hydrogen production rate is increased; structural modular design is adopted, the shell and other components can be manufactured through 3D copying, and batch production and rapid deployment are facilitated.

The invention relates to the field of coal seam gas extraction, and discloses a coal seam nanofluid fracturing and nitrogen injection displacement dynamic collaborative gas extraction method which comprises the following steps: acquiring coal rock geomechanical parameters, gas parameters and coal seam environment parameters to form a basic parameter set; a nanofluid-nitrogen-coal rock-gas four-phase dynamic coupling model is established; forming an exclusive parameter library adaptive to the target coal seam; nanofluid is injected into the target coal seam to conduct fracturing seam forming, the flowback proportion is controlled, then a gradient nitrogen injection strategy is adopted for displacement operation, and gas extraction is conducted synchronously; predicting the adaptability of the operation parameters, and adjusting the operation parameters when the deviation of the operation parameters exceeds a preset threshold value. A four-phase dynamic coupling model covering nanofluid-nitrogen-coal rock-gas is constructed, an exclusive parameter library matched with a target coal seam is formed by combining orthogonal experimental data fitting correction, and whole-course dynamic coupling of nanofluid fracturing permeability increasing, nitrogen displacement desorption and gas extraction is achieved.

The invention discloses a preparation method of a polyaniline modified MXene oil-based nanofluid and a photothermal conversion experimental device. The preparation method comprises the following steps: S1, preparing MXene and regulating and controlling morphology; S2, self-polymerizing and grafting aniline to the surface of MXene; S3, modifying an alkyl ligand and S4, preparing the MXene oil-based nanofluid. By adopting the method provided by the invention, the high-temperature stability of the MXene nanofluid is effectively improved, and meanwhile, the nanofluid is ensured to have excellent light absorption performance.

The invention relates to the technical field of pumped storage power generation tests, in particular to a test device and a test method for simulating fluid pumped storage power generation performance. The invention discloses a test device for simulating fluid pumped storage power generation performance. The test device comprises a communicating pipeline; the upper reservoir tank body is used for accommodating a pumping storage medium; the lower reservoir tank body is communicated with the upper reservoir tank body through a communicating pipeline, and the bottom surface of the upper reservoir tank body is higher than the top surface of the lower reservoir tank body; and the stirring assembly comprises a stirrer, the stirrer is arranged in the upper reservoir tank body and / or the lower reservoir tank body, and the stirrer is used for stirring the pumped storage medium. The invention provides a test device and a test method for simulating fluid pumping and storage power generation performance, and aims to solve the problems that high-density nanofluid is used as a pumping and storage medium for research, the high-density nanofluid is composed of various substances, and if the high-density nanofluid is placed for a long time, the phenomenon that the interior of the fluid is not uniform (such as layering, substance sinking and the like) is caused; the test performance of the pumped storage medium is influenced, and the error of the test result is caused.

This invention discloses a method and apparatus for enhancing heat transfer between magnetic molten salt nanofluid and sCO2 through thermomagnetic coupling. The method introduces magnetic molten salt nanofluid and manipulates it using an external magnetic field, constructing a heat transfer model synergistically integrating a velocity field, a temperature gradient field, a pressure gradient field, and a magnetic field. Numerical simulations are used to obtain the velocity, temperature, and pressure distributions of the fluid, allowing analysis of the directional aggregation behavior of magnetic nanoparticles in the wall region, forming a stable thermal conductivity network and significantly reducing wall thermal resistance. Furthermore, response surface methodology (RSM) combined with neural network technology is employed to optimize the angle parameters between the velocity field and the magnetic field, temperature gradient field, and pressure gradient field. α , β , gamma This method achieves optimal configuration of multi-physics coupling, further improving heat exchange efficiency. It provides new ideas and technical support for the design of high-efficiency thermal management systems.

The technology relates to a method of treating inorganic scale in a well that is drilled in a heterogeneous reservoir matrix. A heterogeneous reservoir matrix has varying permeabilities. The varying permeabilities can cause a change in the shear rate as a fluid flows through it. A shear thinning nanofluid that includes a nanoparticle functionalized with a scale inhibitor and an aqueous solvent is injected into the heterogeneous reservoir matrix. The shear thinning behavior of the nanofluid causes a self-diversion of the nanofluid from a high permeability zone towards the low permeability zone due to a change in the viscosities. The self-diversion causes the scale inhibitor to be delivered to the low permeability zone.