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#1 |
New Member
Join Date: Mar 2014
Posts: 6
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Hi people!
How can be difference in the exit mach numer between 2 nozzles with the same throat and exit areas, and with the same length? One nozzle is conical, and the second is designed using MoC....The Isoentropic realtions aren't correct in this case? I simulated the both nozzles in Fluent 6.3. Pressure inlet: Total Pressure: 101325 Pa Initial Pressure: 100000 Total Temperature: 293.15 K Pressure outlet: Gauge pressure: 5000Pa Backflow total Temperature: 122K The model is axisymmetric, solver density based. The exit Mach numer should be 2.61 - from the isentropic relations The exit Mach number of the Conical nozzle is 3.92Mach MoC nozzle is 5.97Mach... |
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Tags |
isentropic, laval, moc, nozzle |
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