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Perfect Fluids and
Incompressible fluids are different. A perfect fluid is an physical concept similar to an ideal gas. As the article says, there is no shear stresses or viscosity. These are frequently used in General Relativity. An incompressible fluid is one where the density does not vary,
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Incompressible flow redirects here. I'd like to suggest that this article be moved there, and this made a redirect. I had a fluid mechanics prof who liked to harp heavily on the fact that there are no incompressible fluids, and we don't even model fluids as incompressible, but we model
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have shear stresses and viscosity, and are therefore not "perfect". Incompressible fluids are often used in Fluid
Mechanics and in Chemical Engineering. Due to the different definitions and usages of the terms, I would argue to keep the pages separate.
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I'd suggest splitting it up into an article in the "Exact solutions in general relativity" category and the
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on
Knowledge. If you would like to participate, please visit the project page, where you can join
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could someone please define was u is? is that referring to the displacement or velocity?
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I'm gonna be bold and remove eh merge tag. the articles have little in common.
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as incompressible. He had a point. We don't use properties of the
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Knowledge level-5 vital articles in
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to decide if something is incompressible, we use the
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