請問空氣阻力有冇公式計??
好似同物体的表面面積有關
空氣阻力點計
2007-12-25 3:12 am
回答 (2)
2007-12-25 4:58 am
✔ 最佳答案
空氣阻力 F 與周遭流體的Viscosity和該物件的dimension 和 velocity 有關係F = -bv
b 是常數 , 與 Viscosity 和 dimension 有關係
2007-12-26 1:11 pm
there are some formula of the air resistant for some pre-defined shape only, such as sphere, cube, cone, etc.
usually the air resistance is obtained by wind tunnel experiment. or computer simulation.
for more information, refer to textbook on fluid mechanics
usually the air resistance is obtained by wind tunnel experiment. or computer simulation.
for more information, refer to textbook on fluid mechanics
收錄日期: 2021-04-28 15:07:26
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