| 1. | Ideal fluid is incompressible and has no viscosity.
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| 2. | Does this hold for an unsteady ideal fluid?
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| 3. | Everything discussed here is based on the linear theory of an ideal fluid, cf.
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| 4. | Ideal fluid is only an imaginary fluid as all fluids that exist have some viscosity.
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| 5. | In an ideal fluid this energy can never be dissipated and the vortex would persist forever.
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| 6. | An Ideal fluid is non-viscous and offers no resistance whatsoever to a shearing force.
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| 7. | An ideal fluid really does not exist, but in some calculations, the assumption is justifiable.
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| 8. | In contrast, ideal fluids can only be subjected to normal, compressive stress which is called pressure.
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| 9. | In some applications another rough broad division among fluids is made : ideal and non-ideal fluids.
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| 10. | The force was first modelled and analyzed for incompressible particles in an ideal fluid by King in 1934.
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