{"id":315136,"date":"2023-11-06T20:59:24","date_gmt":"2023-11-06T20:59:24","guid":{"rendered":"\/forum\/forums\/topic\/convergent-divergent-nozzle\/"},"modified":"2023-11-06T20:59:24","modified_gmt":"2023-11-06T20:59:24","slug":"convergent-divergent-nozzle","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/convergent-divergent-nozzle\/","title":{"rendered":"Convergent Divergent Nozzle"},"content":{"rendered":"

Good afternoon,<\/p>\n

 <\/p>\n

I am working on a research project involving a convergent divergent nozzle in a schlieren optical setup. I have done the theoretical calcuations of my expected exit properties and have moved to simulation to verify the results and to determine if my nozzle will produce Mach Diamonds from my determined values. I have ran a 2D simulation of just the nozzle to see if a shock forms insde the nozzle first. After I have been trying to run the simulation with an exit region to see the exhaust plume. However I keep getting the results seen in the image below. I will sometimes get weird artifacts in the resutls like a random red dot with a color gradient around it but it is just mostly blue every time. I have the same setup as I had for my stand alone nozzle, but I keep getting the same results. I have posted my solution methods and boundary conditions if anything else is needed please let me know.<\/p>\n

 <\/p>\n

Thanks <\/p>\n

 <\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n","protected":false},"template":"","class_list":["post-315136","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t