{"id":248643,"date":"2023-02-05T00:25:58","date_gmt":"2023-02-05T00:25:58","guid":{"rendered":"\/forum\/forums\/topic\/setup-ansys-fluent-simulation-of-shock-train-formation-in-rectangular-duct\/"},"modified":"2023-02-05T00:25:58","modified_gmt":"2023-02-05T00:25:58","slug":"setup-ansys-fluent-simulation-of-shock-train-formation-in-rectangular-duct","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/setup-ansys-fluent-simulation-of-shock-train-formation-in-rectangular-duct\/","title":{"rendered":"Setup Ansys Fluent Simulation of Shock Train Formation in Rectangular Duct"},"content":{"rendered":"
Hello,<\/div>\n
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I am working on 2D simulation of a rectangular duct. My computation domain consists of a 1 inch tall by 20 inches long duct attached to an “open space” at the end to simulate free-stream conditions.<\/div>\n
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My goal is for a given inlet mach number to vary the back pressure of the “open space” so I can see the effect it has on the shock train formation in the rectangular duct section.<\/div>\n
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I am having trouble getting my residuals to converge and I was wondering if anyone has some feedback\/ideas for getting this model to work correct.<\/div>\n
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Here are my Fluent setup parameters:<\/div>\n
General:<\/div>\n
Density-based solver<\/div>\n
Steady state<\/div>\n
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Models:<\/div>\n
Energy equation on<\/div>\n
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Materials:<\/div>\n
Air, ideal gas, sutherland viscosity<\/div>\n
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Boundary codnitions:<\/div>\n
Pressure inlet: Total pressure 304,000 Pa, static pressure 52,900 Pa, total temperature 500 K (corresponds to mach ~ 1.8)<\/div>\n
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Far field outlet: Static pressure want to vary from 1.5x to 3x inlet static pressure, mach number 1.65, static temperature 300 K<\/div>\n
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Reference values: compute from inlet<\/div>\n
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Standard initialization from inlet<\/div>\n
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1000 iterations<\/div>\n
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Attached is an image of my computational domain with the boundaries labeled for reference.<\/div>\n
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I would really appreciate any input on this, I can’t seem to get my result to converge. Thank you\"\"<\/div>\n","protected":false},"template":"","class_list":["post-248643","topic","type-topic","status-closed","hentry","topic-tag-compressible-flow","topic-tag-fluent-shockwave-machreflection-irregularreflection","topic-tag-internal-flow"],"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