Gas flow noise analysis in pump chamber of rolling piston compressors based on CFD

作者：Yue Xiang Ji^*; Ba De Chun; Su Zheng Yu; Ji Kai; Li Ai Ming

来源：Journal of Vibration and Shock, 2012, 31(3): 123-126.

• Computational fluid dynamic (CFD)
• Gas flow noise
• Gas force
• Pump chambers
• Rolling piston compressors
• Rolling-piston compressor
• Silencer hole
• Turbulence intensity
• Vibration excitation

In order to analyze gas flow noise in the chamber of rolling piston compressors, an effective method was presented based on computational fluid dynamics (CFD). Through the flow simulation of pump chamber by using dynamics mesh technology, the vortexes with larger turbulence intensity were found, and the location and mechanism of vortexes formation were analyzed. Then the amplitude and frequency of vibration excitation were evaluated in accordance with the gas force on the wall, resulted from CFD. The comparative results of with and without silencer hole explain the principle of noise reduction, and validate the method. The proposal was provided to control the flow and noise in the chamber.

• 出版日期2012
• 单位东北大学