翻訳と辞書 Words near each other ・ Saußbach ・ Sauêruiná River ・ Sauðafell Raid ・ Saut-Mathurine ・ Sauta Cave National Wildlife Refuge ・ Sautal (Hassel) ・ Sautang ・ Sautee Nacoochee, Georgia ・ Sautel ・ Sautela ・ Sautela Bhai ・ Sautens ・ Sauter ・ Sauter (disambiguation) ・ Sauter AG ・ Sauter mean diameter ・ Sauter Township, Walsh County, North Dakota ・ Sauter-Finegan Orchestra ・ Sauterelle ・ Sauteria ・ Sauteria spongiosa ・ Sauterina ・ Sauterina hofmanniella ・ Sauternes ・ Sauternes (wine) ・ Sauternes, Gironde ・ Sauteurs ・ Sauteyrargues ・ Sauti Sol ・ Sauti ya Umma 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 Sauter mean diameter ： ウィキペディア英語版 Sauter mean diameter In fluid dynamics, Sauter mean diameter (SMD, ''d''32 or ''D''()) is an average of particle size. It was originally developed by German scientist Josef Sauter in the late 1920s.〔Sauter J. "Die Grössenbestimmung der in Gemischnebeln von Verbrennungskraftmaschinen vorhandenen Brennstoffteilchen" VDI-Forschungsheft Nr. 279 (1926) und Nr. 312 (1928) 〕 It is defined as the diameter of a sphere that has the same volume/surface area ratio as a particle of interest. Several methods have been devised to obtain a good estimate of the SMD. SMD is typically defined in terms of the surface diameter, ''d''''s'': :$d\_s\; =\; \backslash sqrt\}$ and volume diameter, ''d''''v'': :$d\_v\; =\; \backslash left(\backslash frac\backslash right)^,$ where ''A''''p'' and ''V''''p'' are the surface area and volume of the particle, respectively. If ''d''''s'' and ''d''''v'' are measured directly by other means without knowledge of ''A''''p'' or ''V''''p'', Sauter diameter for a given particle is :$SD\; =\; D()\; =\; d\_\; =\; \backslash frac.$ If the actual surface area, ''A''''p'' and volume, ''V''''p'' of the particle are known the equation simplifies further: :$\backslash frac\; =\; \backslash frac\backslash pi\; (d\_v/2)^3\}\; =$ \frac = \frac :$d\_\; =\; 6\backslash frac.$ This is usually taken as the mean of several measurements, to obtain the Sauter mean diameter, SMD: This provides intrinsic data that help determine the particle size for fluid problems. ==Applications== The SMD can be defined as the diameter of a drop having the same volume/surface area ratio as the entire spray. :$D\_s\; =\; \backslash frac\}$ ::$f\_i$ is the scalar variable for the dispersed phase ::$d\_i$ is the discrete bubble size SMD is especially important in calculations where the active surface area is important. Such areas include catalysis and applications in fuel combustion. 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「Sauter mean diameter」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.