F205 PARTICLE DISPERSION AND COHERENT FINE SCALE EDDIES IN HOMOGENEOUS ISOTROPIC TURBULENCE(DNS and computational procedure for turbulence)
スポンサーリンク
概要
- 論文の詳細を見る
Direct numerical simulations of particle laden homogeneous isotropic turbulence were conducted to clarify the relationship between particle dispersion and coherent fine scale eddies in turbulence. The Stokes number that causes preferential distribution of particles in turbulence is closely related to the coherent fine scale eddies. Based on the Burgers' vortex model for coherent fine scale eddies, the influential Stokes number is derived by using the time scale of the coherent fine scale eddies (16η/u_<rms>). The influential Stokes number is depend on Re_λ and decreases with the increase of Re_λ: 15^<1/4> 8s_m Re_λ^<-1/2> for Stokes number based on η/u_<rms>, 8s_m Re_λ^<-1> for λ/u_<rms> and 15^<1/2> 8s_m Re_λ^<-1> for η^2/ν where s_m is constant.
- 一般社団法人日本機械学会の論文
- 2000-10-01
著者
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TANIMURA Satoshi
Department of Hematology, International Medical Center of Japan
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Miyauchi Toshio
Department of Mechanical and Aerospace Engineering,Tokyo Institue of Technology
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Miyauchi Toshio
Department Of Mechanical And Aerospace Engineering Tokyo Institute Of Technology
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TANAHASHI Mamoru
Department of Mechano-Aerospace Engineering, Tokyo Institute of Technology
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Tanahashi Mamoru
Department Of Mechanical And Aerospace Engineering Tokyo Institute Of Technology
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Tanimura Satoshi
Department Of Mechanical And Aerospace Engineering Tokyo Institute Of Technology
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Tanimura Satoshi
Department Of Hematology International Medical Center Of Japan
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