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2D nozzle design of a gradual-expansion nozzle using MoC

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Old   March 23, 2014, 05:24
Exclamation 2D nozzle design of a gradual-expansion nozzle using MoC
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Hi! I need a little help with the design. I designed a nozzle with a central starting point of the characteristic lines, so i know how to compute Prandtl-Meyer angle, Mach angle and flow angle Thetha, but i have difficulties with the design of the gradual expansion nozzle- where the characteristic lines at the expansion section are divided from theta0 to thetaMax, like on this picture:



I can draw the first characteristic line, that starts from the inlet radius(in this case from point r=1) , but i don't know how to continue.

Thanks for the replies, have a nice day
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Old   March 23, 2014, 06:02
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Filippo Maria Denaro
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to tell the truth, I am not sure to understand your question...
However, I can suggest the book of Zucrow ...
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Old   March 23, 2014, 06:29
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Hello FMDenaro!

Thanks for your reply and s orry for my indistinctive question. So, my main question is, how can i determine the length of the expansion section (in ellipse on the picture), what is the distance between the characteristic lines?
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