翻訳と辞書 Words near each other ・ Prego v. City of New York ・ Pregolsky Microdistrict ・ Pregolya River ・ Preference regression ・ Preference relation ・ Preference revelation ・ Preference test ・ Preference theory ・ Preference utilitarianism ・ Preference-based planning ・ Preference-rank translation ・ Preferential alignment ・ Preferential attachment ・ Preferential bidding system ・ Preferential block voting ・ Preferential concentration ・ Preferential creditor ・ Preferential entailment ・ Preferential hyperacuity perimetry ・ Preferential looking ・ Preferential motor reinnervation ・ Preferential Payments in Bankruptcy Amendment Act 1897 ・ Preferential trading area ・ Preferential voting ・ Preferentialism ・ Preferred ・ Preferred Bank ・ Preferred charge ・ Preferred Executable Format ・ Preferred frame Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Preferential concentration ： ウィキペディア英語版 Preferential concentration Preferential concentration is the tendency of dense particles in a turbulent fluid to cluster in regions of high strain (low vorticity) due to their inertia. The extent by which particles cluster is determined by the Stokes number, defined as $Stk\; \backslash equiv\; \backslash frac\; =\; \backslash frac\}$, where $\backslash tau\_p$ and $\backslash tau\_f$ are the timescales for the particle and fluid respectively; note that $\backslash rho\_p$ and $\backslash rho\_f$ are the mass densities of the fluid and the particle, respectively, $\backslash nu$ is the kinematic viscosity of the fluid, and $\backslash epsilon$ is the kinetic energy dissipation rate of the turbulence. Maximum preferential concentration occurs at $Stk\; \backslash sim\; 1$. Particles with $Stk\; \backslash ll\; 1$ follow fluid streamlines and particles with $Stk\; \backslash gg\; 1$ do not respond significantly to the fluid within the times the fluid motions are coherent. Systems that can be strongly influenced by the dynamics of preferential concentration are aerosol production of fine powders, spray, emulsifier, and crystallization reactors, pneumatic devices, cloud droplet formation, aerosol transport in the upper atmosphere, and even planet formation from protoplanetary nebula. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Preferential concentration」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.