102年國營機械專B第四題 - 考試

By Ophelia
at 2013-11-22T20:04
at 2013-11-22T20:04
Table of Contents
[閒聊] 紓發讀書壓力或與板友互動,勿濫用此選項挑釁、引戰,或漫無
邊際用此選項發文。
小弟看法是此題為封閉系...
對於封閉體系內的流體,流體不運動時處於靜態;
流體在封閉容器中沿著管道運動或通過風口時處於動力學狀態。
封閉條件下的流體壓力遵守流體動力學的基本原則。
流體在封閉內運動應該是有壓差的...
附上習題....一題開放...一題封閉容器裝滿...
但小弟看法是在封閉系內流體有沒裝滿...都是存在壓差的...
裝滿是尤拉方程式 z2-z1=0 而沒裝滿是代高度差進去尤拉方程式作
習題都沒有封閉而未裝滿的題目...若堅持用tan那方式作封閉系裝滿也算不出
看了中譯本的推導有寫道除非P2-P1=0 才可減化為tan那美妙的公式...
http://ppt.cc/8Qan
大家來討論吧
--
邊際用此選項發文。
小弟看法是此題為封閉系...
對於封閉體系內的流體,流體不運動時處於靜態;
流體在封閉容器中沿著管道運動或通過風口時處於動力學狀態。
封閉條件下的流體壓力遵守流體動力學的基本原則。
流體在封閉內運動應該是有壓差的...
附上習題....一題開放...一題封閉容器裝滿...
但小弟看法是在封閉系內流體有沒裝滿...都是存在壓差的...
裝滿是尤拉方程式 z2-z1=0 而沒裝滿是代高度差進去尤拉方程式作
習題都沒有封閉而未裝滿的題目...若堅持用tan那方式作封閉系裝滿也算不出
看了中譯本的推導有寫道除非P2-P1=0 才可減化為tan那美妙的公式...
http://ppt.cc/8Qan
大家來討論吧
--
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考試
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