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2D nozzle design of a gradual-expansion nozzle using MoC |
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#1 |
New Member
Join Date: Mar 2014
Posts: 6
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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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#2 |
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Filippo Maria Denaro
Join Date: Jul 2010
Posts: 6,599
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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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#3 |
New Member
Join Date: Mar 2014
Posts: 6
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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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#4 |
Member
K
Join Date: Jul 2017
Posts: 97
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Can someone tell me how we can design the expansion section ? I know how to do a minimum length nozzle by the method of characteristics. But how to design from that a gradual expansion nozzle (as depicted in the figure) is not clear for me. Is there any text book explaining this in detail ?
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#5 |
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K
Join Date: Jul 2017
Posts: 97
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Tags |
gradual-expansion, moc, nozzle |
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