The properties of the flow in an elastic duct
Abstract
The flow in an elastic duct has some special properties. The speed of sound in this kind of flow is discovered to be lower than in the flow in a rigid duct. Since the speed of sound decreases, flows which include area change, friction, heat transfer, and mass addition reach the critical condition at Mach number less than one. It is particularly interesting that in a flow with area change, the critical section does not coincide with the minimum section. The main property of the flow in an elastic duct, that is the speed of sound being lower than in a rigid duct, has been proved by experiment.
- Publication:
-
Fluid-Structure Interaction and Aerodynamics Damping
- Pub Date:
- September 1985
- Bibcode:
- 1985asme.confQ....W
- Keywords:
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- Acoustic Velocity;
- Channel Flow;
- Ducted Flow;
- Elastic Media;
- Heat Transfer;
- Pressure Ratio;
- Skin Friction;
- Fluid Mechanics and Heat Transfer