the time rate of decrease of density of a moving fluid element of fixed mass as it passes through a given point in a flow field is −0.3 kg/m3 sec. the density of the fluid element at that point is 1.27 kg/m3. calculate the time rate of change of volume of this moving fluid element as it passes through the given point by two methods: (a) using just the physical geometry of the element, and (b) using directly the continuity equation in the form of equation drhodt rho∇⋅v

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05-10-2022
Physics

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the time rate of decrease of density of a moving fluid element of fixed mass as it passes through a given point in a flow field is −0.3 kg/m3 sec. the density of the fluid element at that point is 1.27 kg/m3. calculate the time rate of change of volume of this moving fluid element as it passes through the given point by two methods: (a) using just the physical geometry of the element, and (b) using directly the continuity equation in the form of equation drhodt rho∇⋅v

Sagot :

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