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Originally Posted by Tedjay
Bodies moving through perfect fluids at constant velocity experience zero drag. Bodies accelerating through perfect fluids do experience drag.
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Originally Posted by Graybeard  I haven't checked the physics books as you suggested. Are you sure the above quote is correct ??
greg |
The quote is correct. But people cannot find that in internet. I tried several times to surf online for some features, characteristics and concise quotations upon hydrodynamics or fluid dynamics, yet in void.
Really as what Tedjay says, only "
stone-age books from university days that derives the properties of perfect fluids theoretically".
Nowadays, no one wrote anymore about those old topics that already be well-theorized and fixed beyond doubts.
Best Regards. Bottomlander