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Device for testing fluid friction resistance

A kind of friction resistance, test device technology

Inactive Publication Date: 2011-09-14
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The test device described above is more suitable for practical teaching or research on non-smooth surface drag reduction structures, but due to high cost and many limiting factors, it cannot be widely used, and it is impossible to conduct experimental research on jet surface drag reduction

Method used

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  • Device for testing fluid friction resistance
  • Device for testing fluid friction resistance
  • Device for testing fluid friction resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0030] to combine figure 1 , 2 and 3, the present invention is mainly composed of a motor 1, a shaft coupling 24, a torque signal coupler 3, and a load 5. The motor 1 is brought to the torque signal coupler 3 through the shaft coupling 2, and the torque signal coupler 3 drives the load 5 to run through the shaft coupling 4. The load 5 mainly includes three parts, the water distribution link part I, the end cover sealing link part II, and the test sample link part III.

[0031] The data in the test device is collected and stored through the data acquisition system. The motor is speed regulated by a frequency converter. The torque signal coupler passes the signal through the transmitter, the acquisition card, and the computer in sequence, and reads and stores the data through the LabVIEW software. In the software interface, you can read the instantaneous value ...

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Abstract

The invention provides a device for testing fluid friction resistance. The device comprises a motor, a first coupler, a second coupler, a torque signal coupler and a load, wherein the load comprises a shaft, an end cover sealing link part and a test sample link part; the end cover sealing link part comprises a large end cover, a first sealing end cover and a sealed cylinder; the large end cover is a fixture; the sealing end cover is a rotary member; the test sample link part comprises a test sample supporting frame, a test sample, a test sample end cover and a shaft end cover; the test sample supporting frame rotates along with the shaft; the test sample supporting frame is axially fixed at a shaft end through the shaft end cover; and the test sample is arranged on the test sample supporting frame. The device is suitable for testing a resistance reduction effect of a non-smooth surface and testing the resistance reduction effect of a jet surface. The device has a simple structure, is easy to operate and is accurate in test.

Description

technical field [0001] The present invention relates to an experimental device. Specifically, it is a test device capable of testing the frictional resistance of fluids to different surface structures. It is especially suitable for testing the drag reduction effect on non-smooth surfaces and the drag reduction effect test on jet flow surfaces. Background technique [0002] At present, the test devices that can be applied to the test of fluid friction resistance mainly include water tunnel (wind tunnel) devices and pool devices. [0003] As an important means of studying fluid drag reduction, test methods play a very important role in promoting the development of fluid drag reduction theory. Many important turbulence phenomena are first obtained under test conditions. With the rapid development of drag reduction technology, how to design a test device that can evaluate the frictional resistance of fluid to different surface structures is particularly important. In traditio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M10/00
Inventor 赵刚谷云庆舒海生夏冬来赵华琳谢志超杨立明刘浩韩毛毛徐岩
Owner HARBIN ENG UNIV
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