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2. Inviscid flow - Wikipedia

   en.wikipedia.org/wiki/Inviscid_flow

   In fluid dynamics, inviscid flow is the flow of an inviscid fluid which is a fluid with zero viscosity. [1] The Reynolds number of inviscid flow approaches infinity as the viscosity approaches zero. When viscous forces are neglected, such as the case of inviscid flow, the Navier–Stokes equation can be simplified to a form known as the Euler ...

3. D'Alembert's paradox - Wikipedia

   en.wikipedia.org/wiki/D'Alembert's_paradox

   D'Alembert proved that – for incompressible and inviscid potential flow – the drag force is zero on a body moving with constant velocity relative to the fluid. [2] Zero drag is in direct contradiction to the observation of substantial drag on bodies moving relative to fluids, such as air and water; especially at high velocities ...

4. Laplace equation for irrotational flow - Wikipedia

   en.wikipedia.org/wiki/Laplace_equation_for...

   There are many reasons to study irrotational flow, among them; Many real-world problems contain large regions of irrotational flow. It can be studied analytically. It shows us the importance of boundary layers and viscous forces. It provides us tools for studying concepts of lift and drag.

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   www.aol.com/overweight-golden-retrievers-amazing...

   One Dog's Weight-Loss Journey In the year since her rescue, she lost nearly sixty pounds and is now a svelte sixty-five, a far more reasonable weight for a dog her size.

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   BarBox is a longstanding favorite among dog people. The subscription includes two dog toys and two packages of high-quality treats with every shipment. ... You can save up to 60% on essentials ...

7. Potential flow - Wikipedia

   en.wikipedia.org/wiki/Potential_flow

   Validity: As it stands, the equation is valid for any inviscid potential flows, irrespective of whether the flow is subsonic or supersonic (e.g. Prandtl–Meyer flow). However in supersonic and also in transonic flows, shock waves can occur which can introduce entropy and vorticity into the flow making the flow rotational.