Simplified Lay-Out of Supersonic, Heterogeneous Ejectors.
Rept. for Jun 72-Apr 73,
AEROSPACE RESEARCH LABS WRIGHT-PATTERSON AFB OHIO
Pagination or Media Count:
A generalized analysis for supersonic ejectors with heterogeneous operating media and constant area mixing, which leads to a simple diagram for determining approximate values of ejector mass and area ratio, driver-gas Mach-number and temperature, is presented. Simplifications are obtained by considering that conservation of momentum and continuity dominates the ejector process, while conservation of energy, a condition which complicates ejector calculations, is of little influence in case of a supersonic ejector and amenable to an approximate treatment. The ejector layout diagram is also modified to provide information on off-design conditions. In a separate treatment the approximate ejector analysis is used as a first step for a refined layout, which more accurately observes conservation of energy, requiring an iteration process for a solution. Modified author abstract
- Fluid Mechanics
- Jet and Gas Turbine Engines