Testing device for measuring plane global frictional force vector field, and working method
A technology for measuring planes and test devices, applied in the field of aerodynamics, can solve the problems of high requirements for instrument design and installation, cumbersome measurement process, and inability to perform global measurement with friction force measurement technology. The effect of avoiding light interference and easy disassembly
Active Publication Date: 2018-01-19
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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The invention discloses a testing device for measuring a plane global frictional force vector field and a working method, relates to the field of aerodynamics, and can solve a problem of the measurement of the global frictional force vector field of a wall surface. The device comprises a downstream flat plate, a detachable black flat plate, a calibration line, a support, a light source, a movablehinge, an angle scale, a rotatable cantilever, an adjustable connecting rod, a camera connecting support, and a hinge connecting part. The device is simple in structure, and is convenient to operate and control. A tested flat plate serves as a part of a measurement part, so the device can achieve the integrated design of a measurement/flowing wall surface. Through the spraying of a liquid crystalcoating in a certain range, the device can achieve the measurement of a global frictional force field.
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Classification and recommendation of technical efficacy words
- Avoid light interference
- Easy to disassemble
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