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不锈蝙蝠金虫 (正式写手)
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[求助]
"mean velocity" and "average velocity"？ 已有2人参与
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Numerous terminologies containing "velocity" exist in Flow Dynamics/Mechanics, among which, one term seems often so similar to another that I could not understand it accurately enough. As an example, both "mean velocity (distribution)" and "everage velocity" were used in an english reference I'm reading, but with different symbols. So my question is: what exactly is the difference between these two term? Does "mean velocity" equals to "time-average velocity", as there is a "distribution" following, while "average velocity" means "section-average velocity" which equals to Q/A? Notes: 1. You are appreciated to answer this post in English. 2. You are greatly appreciated to point out the language erros in my description above. |
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hijack520
金虫 (小有名气)
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【答案】应助回帖
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1.you don't need "it" here of "...o similar to another that I could not understand it accurately enough. ". 2. you will use plural form of "terms" instead of singular form of "term" here of '...what exactly is the difference between these two term?...' 3. you will use singular form of "equal" instead of "equals" here of '...Does "mean velocity" equals to "time-average velocity..."' As to the question, as a terminlogy, to my point, a word definitely has clear connotation in a certain reserch filed. The difference can be figured out from published literatures of that research field. |
18楼2013-12-17 16:38:26
不锈蝙蝠
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3楼2013-08-23 10:45:30
liulion2008
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5楼2013-08-23 11:23:34
liulion2008
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6楼2013-08-23 11:25:41
