Derivative and divergence of velocity for various types of flows
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In vector calculus, divergence is a vector operator that produces a scalar field, giving the quantity of a vector field's source at each point. More technically, the divergence represents the volume density of the outwardflux of a vector field from an infinitesimal volume around a given point.
No continuum mechanics course can claim to be complete without a discussion of material derivatives. The material derivative computes the time rate of change of any quantity such as temperature or velocity (which gives acceleration) for a portion of a material moving with a velocity, {\bf v}. If the material is a fluid, then the movement is simply the flow field.
No continuum mechanics course can claim to be complete without a discussion of material derivatives. The material derivative computes the time rate of change of any quantity such as temperature or velocity (which gives acceleration) for a portion of a material moving with a velocity, {\bf v}. If the material is a fluid, then the movement is simply the flow field.
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