Water flow state virtual simulation management system and method based on water conservancy project discharge flow energy dissipation

Abstract

The invention discloses a water flow state virtual simulation management system and method based on water conservancy project discharge flow energy dissipation, and the system comprises a data source module, a visual three-dimensional module, and a three-dimensional visual virtual simulation display interface module, the data source module is used for providing input data and parameters, and providing simulation data support for the visual three-dimensional module; the visual three-dimensional module is used for displaying a complex water conservancy project structure and the interior of the complex water conservancy project structure, so that a user observes and understands engineering design from multiple angles; and the three-dimensional visual virtual simulation display interface module is used for user interaction operation. According to the water flow state virtual simulation management system and method provided by the invention, a high-precision model can be provided for virtual simulation in the water conservancy project industry, and the accuracy of a simulation result is ensured; the interactivity is enhanced, so that the user can operate and experience more intuitively; application scenes are expanded, and the whole life cycle of hydraulic engineering design, construction and management is covered; the intelligent level is improved, and more efficient decision support and fault prediction are realized.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic engineering simulation experiments, and in particular to a water flow pattern virtual simulation management system and method based on hydraulic engineering discharge and energy dissipation. Background Art

[0002] With the continuous development of water conservancy projects, the complexity of their design, construction and management has increased day by day. Traditional teaching and practice methods can no longer meet the industry's demand for efficient, safe and low-cost technical means. Water conservancy projects involve the intersection of multiple disciplines such as hydrology, hydraulics, structure, geology, etc. Traditional methods often rely on a large number of field tests and trial and error, which is not only time-consuming and labor-intensive, but also costly. At the same time, due to the particularity of water conservancy projects, many extreme working conditions and unexpected situations in their actual operation are difficult to fully simulate and predict in reality. Therefore, a new technology is urgently needed to make up for these shortcomings and improve the design, construction and management level of water conservancy projects. At the same time, solve the limitations in teaching.

[0003] At present, virtual simulation technology has been initially applied in the field of water conservancy projects. Through the comprehensive application of computer graphics, simulation technology, multimedia technology and artificial intelligence technology, a virtual environment is constructed to simulate the actual operation process of water conservancy projects. However, the existing virtual simulation technology still has many shortcomings, such as insufficient model accuracy, weak interactivity, and limited application scenarios, which makes it difficult to meet the water conservancy industry's needs for high precision, high efficiency, and high flexibility. Summary of the invention

[0004] In view of the problems existing in the existing virtual simulation technology of water conservancy projects, the present invention provides a high-precision modeling technology; adopts advanced computer graphics and physical engine technology to construct a high-precision three-dimensional model of water conservancy projects, and ensures that the simulation results are true and accurate. A virtual simulation management system and method of water flow patterns based on water conservancy project discharge and energy dissipation is provided.

[0005] The solution adopted by the present invention to solve the technical problem is: a water flow virtual simulation management system based on water conservancy project discharge and energy dissipation, including a data source module, a three-dimensional visualization module, and a three-dimensional visualization virtual simulation display interface module.

[0006] Among them, the data source module is used to provide input data and parameters to provide simulation data support for the visualization 3D module; Visual 3D module, used for complex water conservancy project structures and their internal display, allowing users to observe and understand engineering designs from multiple angles; Three-dimensional visualization virtual simulation display interface module is used for user interactive operations.

[0007] The data source module includes the overall data collection of the system. The interactive data in the system is transmitted to the database through the interface encryption method, and the model library is established at the same time; The visualization 3D module builds the model through 3DMax and renders the water flow effect. According to the collection of different sites of the water conservancy project, the explanation of specific locations and specific parts is displayed in three dimensions. The dam uses explosion to form a single-point model. Using WebGL compression package and background construction, the 3D visualization virtual simulation display interface module is embedded in the web platform through the B / S architecture, and data is transmitted to the data source through the system interface.

[0008] Furthermore, the data source module includes initial data parameters and mathematical models of equipment and structures, and the initial parameters include upstream water level, downstream water level, discharge flow, nose sill, sill width, elevation, anti-arc radius, angle, aerial range, underwater range and total range.

[0009] Furthermore, the visualization three-dimensional module includes a three-dimensional model of a hyperbolic arch dam, a three-dimensional model of a hydropower station, a flood discharge flow effect, a three-dimensional model of a stilling pool, a three-dimensional model of a stilling sill and a structural model of a hyperbolic arch dam water conservancy project. The visualization three-dimensional module includes the appearance structure, internal structure and internal structure of the pipeline and the connection structure between the pipeline and the dam.

[0010] Furthermore, the three-dimensional visualization virtual simulation display interface module adopts a B / S architecture. Users conduct virtual simulation experiments through a browser. After the browser receives the user's input instructions, it passes them to the browser engine for processing. The browser engine transmits the received and sent browser user interface, browser engine, rendering engine, JavaScript engine, network communication module and data storage layer, as well as the communication mechanism between the browser and the server, which jointly realize the interactive function between the user and the web page.

[0011] A simulation method for a water flow virtual simulation management system, S1. The user accesses the water flow virtual simulation management system through a web browser; S2. Establish experimental projects; S3. Input or select relevant initial parameters according to experimental requirements; S4, selecting a suitable model from the system 3D model library; S5. Confirm that all parameter settings are correct, start the policy program, and the system automatically calls the background data source module to perform policy calculation; S6. View the changes in water flow patterns in real time through a virtual simulation display interface module; S7. After the simulation is completed, the system generates a simulation result report.

[0012] Beneficial effects of the present invention: The water flow state virtual simulation management system and method based on water conservancy project discharge and energy dissipation provided by the present invention can 1) provide a high-precision model for virtual simulation for the water conservancy project industry to ensure the accuracy of the simulation results; 2) enhance interactivity so that users can operate and experience more intuitively; 3) expand application scenarios to cover the entire life cycle of water conservancy project design, construction, and management; 4) improve the level of intelligence to achieve more efficient decision support and fault prediction.

[0013] The water flow pattern virtual simulation management system of the present invention has the following advantages: 1. High-precision modeling technology: using advanced computer graphics and physical engine technology to build a high-precision three-dimensional model of water conservancy projects to ensure the authenticity and accuracy of the simulation results.

[0014] 2. Strong interactive design: Combining multimedia and artificial intelligence technologies to achieve natural interaction between users and virtual environments, improving user experience and learning effects.

[0015] 3. Full life cycle Application: Covering the entire life cycle of water conservancy project design, construction and management, providing comprehensive support and solutions.

[0016] 4. Intelligent decision support: Combining big data and artificial intelligence algorithms to achieve intelligent analysis and decision support of simulation results, and improve the safety and economy of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present invention.

[0018] Figure 2 This is a system block diagram of the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below.

[0020] Embodiment 1: The present invention provides a virtual simulation management system for water flow patterns based on water conservancy project discharge and energy dissipation. It uses 3DS MAX to build a three-dimensional model, OpenGL calls 3DS format files, and Unity3D development software as the main body to build a three-dimensional model library. It uses the three-dimensional model to build a complete water conservancy hub, forming a relatively complete program framework. Figure 1 and Figure 2As shown in the figure, the system consists of three parts: data source module, visualization 3D module, and 3D visualization virtual simulation display interface module. The main function of the data source module is to provide simulation data support for the visualization 3D module. Each visualization 3D module has a corresponding mathematical model as the data source of the simulation. The data source module consists of the initial parameters of the data and the mathematical model of the equipment. The initial parameters include the upstream water level, downstream water level, discharge flow, nose sill, sill width, elevation, anti-fox radius, pick angle, aerial range, underwater range and total range. According to the professional algorithm of water conservancy engineering, each parameter is brought in to calculate the results of fluid dynamics scouring pit depth, discharge flow, and discharge range. The virtual simulation model includes: hyperbolic arch dam, hydropower station, flood discharge flow effect, stilling pool, stilling sill model group, hyperbolic arch dam water conservancy engineering structural model simulation, including the overall appearance structure, the internal structure of the dam, the internal structure of the pipeline, the connection structure between the pipeline and the dam, and the transmission to the hydropower station, the downstream flood discharge tunnel and other points.

[0021] The 3D visualization virtual simulation display interface module adopts B / S architecture design. Students log in to the virtual simulation experiment through a web browser and independently select experimental projects. The system calls relevant modules and interacts with data. Experimental students select experimental conditions and related condition parameters, and perform calculation demonstrations. Finally, comparative analysis of results is generated and the experimental report is completed.

[0022] The present invention adopts WebGL compression package and background construction, and the three-dimensional visualization virtual simulation display interface module is embedded in the web platform through the B / S architecture, and the data is transmitted to the data source through the system interface. When in use, the user conducts a virtual simulation experiment through the browser. After the browser receives the user's input command, it passes it to the browser engine for processing. The browser engine transmits multiple components of the browser user interface, browser engine, rendering engine, JavaScript engine, network communication module and data storage layer, and the communication mechanism between the browser and the server, and jointly realizes the interactive function between the user and the web page.

[0023] The specific operation process includes: S1. The user accesses the water flow virtual simulation management system through a web browser; S2. Establish experimental projects; S3. Input or select relevant initial parameters according to experimental requirements; S4, selecting a suitable model from the system 3D model library; S5. Confirm that all parameter settings are correct, start the policy program, and the system automatically calls the background data source module to perform policy calculation; S6. View the changes in water flow patterns in real time through a virtual simulation display interface module; S7. After the simulation is completed, the system generates a simulation result report.

[0024] Based on the simulation results and comparative analysis, users write experimental reports, summarizing the problems found in the experiments, solutions and improvement suggestions.

[0025] The present invention uses a browser as an interactive window, facilitates cross-platform use of the system, meets the needs of water conservancy project simulation, and improves application flexibility.

[0026] The specific operation process is as follows: ① Open the browser and enter the simulation management system described in the present invention. After entering the experimental system, an immersive experience welcome page is displayed. The scene is a water conservancy hub and a hydropower station. After loading the scene, the automatic roaming mode is first entered, and the automatic roaming is performed around the sky in front of the water conservancy hub. The scene of the water conservancy hub is fully understood, including reservoir capacity, dam height, dead water level, normal water level, units, installed capacity, problem solving, world's best, introduction to water management, etc. A pause / continue roaming button is added during the roaming process.

[0027] ②Use 3D MAX to build a three-dimensional model of a hyperbolic arch dam, which is a special type of arch dam that presents an arc in both the vertical direction (from top to bottom) and the horizontal direction (along the water flow direction). Its cross section is parabolic, while the longitudinal section is arc-shaped. OpenGL calls the 3DS format file as the basis, loads the designed hyperbolic arch dam, and forms a relatively complete program architecture. The design of the hyperbolic arch dam model reflects the internal and external structures, including the hoist, drainage hole, etc.

[0028] ③This system provides model assembly and disassembly display, and supports point introduction Click the structure disassembly button to display the explosion animation of all the dam structures disassembly; Click the structure assembly button to display the dam structure assembly and merging animation; Without clicking the button, the user can also disassemble and organize the dam through interactive methods such as clicking and dragging; the disassembled structures float around the dam in the scene, and the overall assembly of the dam structure is completed by dragging; (position adsorption is used during assembly. If the dragging position is correct, the corresponding structure is directly adsorbed to the correct position. If it is incorrect, it will prompt: The position structure is incorrect, please try again! and an error sound effect is attached).

[0029] After the last structure is assembled, an animation of all the structures assembled to form a dam is displayed, and then a pop-up window prompts: Congratulations on completing the dam structure assembly! / OK.

[0030] Then, click Next to display the entire pipeline structure of the project, including left and right bank pipelines, power generation pipelines, drainage holes, etc., and provide annotations.

[0031] ④ Design of flood discharge and energy dissipation; The upstream and downstream water level design uses 3D models and special effects to render water flow effects, and automatically adjusts water level changes based on input values. The upstream water level altitude, downstream water level altitude, and discharge flow are input in turn.

[0032] Enter the flow nose sill selection, there are three nose sill models on the page (continuous, differential, and new type of nose sill learning).

[0033] Design of the sill size. At this time, the perspective shifts to the side of the dam, and the dam parameters are displayed on the model again. Then, the entire hole model is drifted from the dam to the front of the perspective, and the entire hole and its cross-sectional structure (including the cross-sectional structure of the nose sill) are displayed. The nose sill is then highlighted. After clicking, the nose sill is taken out separately, and the other parts of the model are hidden. At the same time, the designed sill size parameters can be entered on the page, including: sill elevation, sill width, anti-arc radius, and sill angle parameter θ.

[0034] Calculation of flow range: The system automatically calls the underwater range formula, air range formula and total range formula, and calculates the underwater range, air range and total range of the relevant model based on the input parameters.

[0035] According to the above parameters, the range of the flow is calculated to make the calculation results more concrete and rich. Using Unity3D development software as the main body, the depth of the scour pit is calculated through program coding, and the change of the depth of the scour pit is directly reflected visually. Select rocks and gravel. Rocks are divided into four different materials, including giant blocks, large blocks, and two different particle sizes of fragments. Enter the scour pit depth calculation page, calculate the depth of the scour pit according to the different rock and gravel riverbeds, manually enter the calculation results, and the simulation management system will make a judgment, and then enter the flood discharge experience page. According to the above calculation results, start flood discharge. The flood discharge length will also be different according to the different calculation results; click "Safety Calculation", the system determines that the flood discharge safety calculation is normal.

[0036] Observation of flood discharge effect Move the view to the location of the dam's spillway, select the discharge hole to be used for the discharge, shift the view to the side of the dam, click the start discharge button, and click to display the corresponding discharge effect animation (after scouring, the downstream model becomes a scouring pit). In this step, set multiple observation points, including side observation, front observation, and top-down observation points; click the corresponding point, and the observation perspective changes accordingly; click the flow parabola to move the view to focus on the details of aerial and underwater energy dissipation, and use the UI to mark and explain. The parameters of each design and the corresponding discharge effect are saved. Users can design multiple times, and finally view the differences and comparisons between the parameters and effects each time.

[0037] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A water flow pattern virtual simulation management system based on water conservancy project discharge and energy dissipation, characterized in that: It includes data source module, 3D visualization module, and 3D visualization virtual simulation display interface module. Among them, the data source module is used to provide input data and parameters to provide simulation data support for the visualization 3D module; Visual 3D module, used for complex water conservancy project structures and their internal display, allowing users to observe and understand engineering designs from multiple angles; 3D visualization virtual simulation display interface module for user interactive operation; The data source module includes the overall data collection of the system. The interactive data in the system is transmitted to the database through the interface encryption method, and the model library is established at the same time; The visualization 3D module builds the model through 3DMax and renders the water flow effect. According to the collection of different sites of the water conservancy project, the explanation of specific locations and specific parts is displayed in three dimensions. The dam uses explosion to form a single-point model. Using WebGL compression package and background construction, the 3D visualization virtual simulation display interface module is embedded in the web platform through the B / S architecture, and data is transmitted to the data source through the system interface.

2. According to claim 1, the water flow pattern virtual simulation management system based on water conservancy project discharge and energy dissipation is characterized by: The data source module includes data initial parameters and mathematical models of equipment and structure. The initial parameters include upstream water level, downstream water level, discharge flow, nose sill, sill width, elevation, anti-arc radius, angle, aerial range, underwater range and total range.

3. According to claim 1, the water flow pattern virtual simulation management system based on water conservancy project discharge and energy dissipation is characterized by: The visualization three-dimensional module includes a three-dimensional model of a hyperbolic arch dam, a three-dimensional model of a hydropower station, a flood discharge flow effect, a three-dimensional model of a stilling pool, a three-dimensional model of a stilling sill and a structural model of a hyperbolic arch dam water conservancy project. The visualization three-dimensional module includes the appearance structure, internal structure and internal structure of the pipeline and the connection structure between the pipeline and the dam.

4. According to claim 1, the water flow pattern virtual simulation management system based on water conservancy project discharge and energy dissipation is characterized by: The three-dimensional visualization virtual simulation display interface module adopts a B / S architecture. Users conduct virtual simulation experiments through a browser. After the browser receives the user's input instructions, it passes them to the browser engine for processing. The browser engine transmits the communication mechanism between the browser user interface, browser engine, rendering engine, JavaScript engine, network communication module and data storage layer, as well as the browser and server, and jointly realizes the interactive function between the user and the web page.

5. A simulation method based on the water flow virtual simulation management system according to any one of claims 1 to 4, characterized in that: S1. The user accesses the water flow virtual simulation management system through a web browser; S2. Establish experimental projects; S3. Input or select relevant initial parameters according to experimental requirements; S4, selecting a suitable model from the system 3D model library; S5. Confirm that all parameter settings are correct, start the policy program, and the system automatically calls the background data source module to perform policy calculation; S6. View the changes in water flow patterns in real time through a virtual simulation display interface module; S7. After the simulation is completed, the system generates a simulation result report.

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