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While using grid oriented velocity components, conservation of which of these equations will be lost?

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While using grid oriented velocity components, conservation of which of these equations will be lost?

(a) Energy equation

(b) Euler equations

(c) Momentum equation

(d) Continuity equation

I got this question in homework.

My query is from Numerical Methods in chapter Numerical Methods of Computational Fluid Dynamics

1 Answer

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Best answer
Right choice is (c) Momentum equation

Best explanation: If grid-oriented velocity components are used, non-conservative source or sink terms will appear in Momentum equations. This will affect the conservation of Momentum equation. Euler equations is a set including all three – continuity, momentum, energy equations.

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