Imagine a flying object, maybe a sphere or cylinder for simplicity, the gas
flowing around the object has to flow around it, the gas is forced to move
around the object. Such forces need to have a pressure gradient force (
volumetric force = ∇ pressure) , and the pressure change corresponds to a
temperature change with an adiabatic relation.

Imagine the flying object at two different speeds, v and v + Δv, close to
each other. Determine the difference in the temperature field in the
surrounding gas between the two situations.

My question is: If I artificially apply such a temperature field around an
object would it accelerate? (Would the object go from speed v to v + Δv ? )

David

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