vand 中文意思是什麼

vand 解釋

  1. Actually, n - s equation has three unknown functions u, v, p and three equations, now prandtl boundary layer equation has two unknown functions w, vand two equations only, and viscosity terms has partly reduced

    原來有三個未知函u , v , p及三個方程,現在只有兩個未知函數u , v及兩個方程,且粘性項也少了一些,這些都是簡化的地方。
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