![]() ![]() ![]() ![]() However, work by Ashton, Green and Reade (1993) suggests that the use of a diverging section is not necessary for effective operation, at least at moderate pressure ratios. An 'on-design' condition can be defined where the static pressures of primary and secondary flows are equal at the nozzle exit. In some ejector designs, a converging-diverging nozzle is utilized to accomodate the expanding jet. (See Critical Flow, Jets and Nozzles.)ĭownstream of the nozzle, flow will expand in a series of supersonic shocks until the pressures of both streams become equal and mixing occurs. Where C D is the discharge coefficient, S TH the throat area, γ the ratio of specific heat at constant pressure to the specific heat at constant volume and R, the specific gas constant. ![]()
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