[問題] 流體力學pipe flow
大家好
想請問一個問題
________________
a
→flow b
→ c ↓g
__________________
這是流體在圓管(pipe)中流動，假設目前為laminar flow
請問在abc三點的壓力大小是如何？
a.c在上下管壁上，b點在中心線上
我目前想法是
感覺b點上面有更多液體壓著他，所以他壓力應該比a點高，c點依此類推 --> c>b>a
而另一種想法是
在管壁a.c點流速為0，由白努力方程，可以知道a和c壓力最大--> a=c>b
但這兩種想法答案會不太一樣
不知道哪一種才是對的
謝謝大家
※ 編輯: Ertkkpoo 來自: 219.70.216.77 (12/15 20:27)
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