Error Characteristic Analysis of Fluid Momentum Law Test Apparatus

Author:

Yang Song,Zhu Xianyong,Wang Hui

Abstract

The flat-plate momentum test bench is a widely used experimental device in the verification of the momentum law of fluid mechanics, and its error characteristics are of positive significance for theoretical research and engineering innovation and expansion. The SPH-FEM coupling algorithm and spectrum analysis method are used to calculate and analyze the displacement response and spectrum characteristics of the characteristic points of the sensor under different jet loads. Based on them, the cause, classification, law, scope, influence and control method of the measurement error of the system are discussed and analyzed with the application of the error theory and the lateral effect theory of strain gauges; combined with physical experiments, the relevant analysis methods and conclusions are verified. The results show that the measurement error of the system includes linear error and periodic error. Structural deformation in the direction of jet impact is the main source of linear error; linear error increases with the increase of jet loads. Meanwhile, periodic vibration in non-jet direction is the main cause of periodic error, and the periodic error decreases with the increase of jet loads.

Publisher

MDPI AG

Subject

Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science

Reference30 articles.

1. Introduction;Munson,2009

2. Five periods of development of fluid mechanics;Zhou;Mech. Eng.,2001

3. Importance of Computional Fluid Dynamics in Medical Education System;Wan;Northwest Med. Educ.,2016

4. Construction and application of excellent experiment of momentum law;Zhao;Lab. Sci.,2016

5. Analysis and assessment of the device for momentum law testing;Liu;J. Daqing Pet. Inst.,2005

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