Vibration effects of standing surface acoustic wave for separating suspended particles in lubricating oil
Ziping Wang,
Lei Qian,
Zhengxuan Jiang,
Xian Xue,
Karthik Reddy
Affiliations
Ziping Wang
Faculty of Civil Engineering and Mechanics, National Center for International Research on Structural Health Management of Critical Components, Jiangsu University, Zhenjiang 212013, China
Lei Qian
Faculty of Civil Engineering and Mechanics, National Center for International Research on Structural Health Management of Critical Components, Jiangsu University, Zhenjiang 212013, China
Zhengxuan Jiang
Faculty of Civil Engineering and Mechanics, National Center for International Research on Structural Health Management of Critical Components, Jiangsu University, Zhenjiang 212013, China
Xian Xue
Faculty of Civil Engineering and Mechanics, National Center for International Research on Structural Health Management of Critical Components, Jiangsu University, Zhenjiang 212013, China
Karthik Reddy
Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, North Carolina 27606, USA
The microfluidic chip can be used to separate particles via the acoustic radiation force and can be applied to the separation of impurity particles from lubricating oil. A device that separates particles by controlling the acoustic radiation force via standing surface acoustic waves (SSAWs) was proposed. The concentration and separation of suspended particles were simulated by using the COMSOL Multiphysics modeling software. The force exerted on suspended particles and their subsequent motion in the microfluidic channel were analyzed, and then the concentration of particles exposed to SSAWs was verified. We also investigate how the frequency of the SSAW affects the particle concentration and discuss the advantage of using SSAWs to concentrate and separate particles. The separating feasibility was verified by suspended particles in lubricating oil experiments according to simulation results.
