Device and method for testing settling velocity of irregular particle liquid
A technology of sedimentation velocity and testing device, applied in the direction of analyzing materials, instruments, etc., to solve the effect of testing errors
Pending Publication Date: 2021-10-29
POWERCHINA HUADONG ENG COPORATION LTD
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Problems solved by technology
The present invention simulates different viscous forces of liquids by configuring glycerol aqueous solutions with different volume fractions, and then simulates the Reynolds number of particles in a wide range of intervals, and at the same time solves the test errors caused by the external temperature environment and artificial release factors of particles
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[0027] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the preferred embodiments of the present invention will be described below in conjunction with specific examples, but it should be understood that the accompanying drawings are for illustrative purposes only, and cannot be interpreted as an explanation of this patent. Restrictions; In order to better illustrate this embodiment, some parts in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, some known structures and their descriptions in the drawings may Omissions are understandable. The positional relationship described in the drawings is for illustrative purposes only, and should not be construed as a limitation on this patent.
[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but not as a basis fo...
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Abstract
The invention provides a device and a method for testing the settling velocity of irregular particle liquid. The device comprises a thermostat (5), a cylindrical liquid storage barrel (2) is arranged in the thermostat (5), glycerol aqueous solutions (1) with different volume concentrations are arranged in the cylindrical liquid storage barrel (2), an electromagnetic clamping piece (3) is arranged on the upper part of the cylindrical liquid storage barrel (2), the electromagnetic clamping piece (3) equipment can be used for loading irregular particles (10), and a non-contact measuring system is arranged on the inner wall of the constant-temperature box (5). According to the invention, different viscous forces of liquids are simulated by preparing glycerol aqueous solutions with different volume fractions, so that the particle Reynolds number in a wide-area interval range is simulated, and meanwhile, test errors caused by external temperature environment and artificial particle release factors are solved.
Description
technical field [0001] The invention relates to the technical fields of geotechnical engineering and engineering geology, in particular to a device and method for testing sedimentation velocity in liquid with irregular particles. Background technique [0002] Irregular rock and soil granular matter is a rock and soil material commonly used in engineering (such as South China Sea island reef filling, high dam construction, etc.), and the permeability of such materials largely determines the consolidation and settlement of the foundation or engineering structure. seepage characteristics. The drag coefficient is the main parameter to characterize the force of fluid on the surface of soil particles, and it is also a key parameter in the numerical simulation of fluid-structure interaction. However, the research on the drag coefficient of irregular particles at home and abroad is very limited. [0003] Chinese utility model patent CN208313762U discloses an image acquisition syste...
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IPC IPC(8): G01N15/04
CPCG01N15/04
Inventor 吴昊单治钢倪卫达
Owner POWERCHINA HUADONG ENG COPORATION LTD