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CSME 2020/04
Volume 41 No.2
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149-158
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Numerical and Experimental Study on Flow Effects of Pneumatic Proportional Pressure Valve
Tzong-Hann Shieha, Chun-Liang Yeha, Yu-Li Chen and Charng-Chin Hsiao
aDepartment of Aerospace and Systems Engineering, Feng Chia University. 100, Wenhwa Rd., Seatwen, Taichung, Taiwan. / Ph.D. Program of Mechanical and Aeronautical Engineering, Feng Chia University. 100, Wenhwa Rd., Seatwen, Taichung, Taiwan.
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Abstract:
This study developed a novel system for the measurement of pressure within an SMC-ITV2030-012BL pneumatic proportional pressure valves. We also constructed a precise three-dimensional structure of the channel within the valve to examine the aerodynamic characteristics of the internal flow field using the finite volume method and Reynolds-averaged Navier-Stokes equations. We first compared the aerodynamic characteristics resulting from opening the valve 70% using completely or partially encrypted grid models. We then considered various wall structures at the inlet and outlet of the flow channel with the same valve opening. Finally, we compared the results of simulation and experiments of the flow field within the valve. Finally, we investigated the flow field characteristics when the valve was opened 90%, 70%, and 50%. Experiment and simulation results show that the aerodynamic characteristics of the flow field are influenced by the wall structures of the valve and the opening of the valve as well as the grid encryption method that is employed.
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Keywords: Pneumatic, Proportional pressure valve, Solenoid valve, Parametric analysis
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©
2020
CSME , ISSN 0257-9731
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