翻訳と辞書 Words near each other ・ Dynamic mutation ・ Dynamic network analysis ・ Dynamic nuclear polarisation ・ Dynamic packaging ・ Dynamic Packet Transport ・ Dynamic painting ・ Dynamic Parcel Distribution ・ Dynamic Party ・ Dynamic passenger information ・ Dynamic perfect hashing ・ Dynamic Photo HDR ・ Dynamic Pictures ・ Dynamic Planning ・ Dynamic positioning ・ Dynamic Praise ・ Dynamic pressure ・ Dynamic pricing ・ Dynamic priority scheduling ・ Dynamic problem (algorithms) ・ Dynamic program analysis ・ Dynamic programming ・ Dynamic programming language ・ Dynamic provisioning environment ・ Dynamic psychiatry ・ Dynamic publishing ・ Dynamic quartz recrystallization ・ Dynamic random-access memory ・ Dynamic range ・ Dynamic range (disambiguation) ・ Dynamic range compression 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 Dynamic pressure ： ウィキペディア英語版 Dynamic pressure In incompressible fluid dynamics dynamic pressure (indicated with ''q'', or ''Q'', and sometimes called velocity pressure) is the quantity defined by:〔Clancy, L.J., ''Aerodynamics'', Section 3.5〕 :$q\; =\; \backslash tfrac12\backslash ,\; \backslash rho\backslash ,\; v^,$ or $v\; =\; \backslash sqrt$ where (using SI units): : == Physical meaning == Dynamic pressure is the kinetic energy per unit volume of a fluid particle. Dynamic pressure is in fact one of the terms of Bernoulli's equation, which can be derived from the conservation of energy for a fluid in motion. In simplified cases, the dynamic pressure is equal to the difference between the stagnation pressure and the static pressure.〔 Another important aspect of dynamic pressure is that, as dimensional analysis shows, the aerodynamic stress (i.e. stress within a structure subject to aerodynamic forces) experienced by an aircraft travelling at speed $v$ is proportional to the air density and square of $v$, i.e. proportional to $q$. Therefore, by looking at the variation of $q$ during flight, it is possible to determine how the stress will vary and in particular when it will reach its maximum value. The point of maximum aerodynamic load is often referred to as ''max Q'' and it is a critical parameter in many applications, such as during spacecraft launch. 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「Dynamic pressure」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.