Research on particle size distribution in rectangular turbulent channel flow

【Author】

Fu-jun Gan 1,Jian-zhong Lin 1,21 State Key Laboratory of Fluid Power Transmission and Control,Zhejiang University 2 College of Metrology and Measurement Engineering,China Jiliang University Hangzhou,China

【Abstract】

Large eddy simulations of threedimensional particle-laden turbulent channel flow are performed for Re = 13800.The flow results are validated using the experimental data and good agreements are achieved.TEMOM is employed to deal with PGDE,which describes PSD,involving the effect of shearinduced coagulation,which is greatly affected by the effects of turbulent transport and preferential concentration,represented by radial relative velocity and radial distribution function,respectively.Particles with four different stokes number are considered to study the above effects on the evolution of PSD.In the results,the distributions of particle number concentration,polydispersity,particle diameter are detailed discussed.

【Keywords】

turbulent channel flow;large eddy simulation;Taylor-series expansion moment method;relative velocity;preferential concentration.

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Total: 21 articles

  • [1] Li Ruixia Liu Zhaohui He Zhu Chen Yinmi Zheng Chuguang (State Key Laboratory Coal Combustion, Huazhong University Science & Technology Wuhan 430074, China), DIRECT NUMERICAL SIMULATION OF INERTIAL PARTICLE COLLISIONS IN ISOTROPIC TURBULENCE, Chinese Journal of Theoretical and Applied Mechanics,
  • [2] R.R. Upadhyay;;O.A. Ezekoye, Evaluation of the 1-point quadrature approximation in QMOM for combined aerosol growth laws, Journal of Aerosol Science,
  • [3] Eric G. Moody;Lance R. Collins, Effect of Mixing on the Nucleation and Growth of Titania Particles, Aerosol Science and Technology,
  • [4] Robert McGraw, Description of Aerosol Dynamics by the Quadrature Method of Moments, Aerosol Science and Technology,

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