Note on the Axisymmetric Sonic Jet.
RENSSELAER POLYTECHNIC INST TROY NY
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The axisymmetric jet exhausting to sonic pressure is considered, for simplicity, under the assumptions of transonic small disturbance theory. It is shown that the jet reaches its final state at a finite distance from the orifice. This result for the axisymmetric jet is thus the same as that for a jet. Part of the argument used to show that the jet reaches its asymptotic state is local in the hodograph. The result should also apply to a gas dynamic flow without the restriction of small disturbance theory. In the neighborhood of its final state disturbances from parallel sonic flow are in fact small.
- Fluid Mechanics