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why does increasing mesh ruins my simulation ?

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December 9, 2021, 08:35	why does increasing mesh ruins my simulation ?	#1
shatarah New Member mody Join Date: Mar 2021 Posts: 16 Rep Power: 5	Hello, can you tell me why when I increase mesh my steady fluent simulation diverges ( continuity 1e10) and gives very weird results? I noticed that only when the mesh has a very low number of elements the simulation converges ( continuity 1e-7)and it gives a rational result. it is a 2d convergent-divergent nozzle with ideal airflow (inviscid model) inlet gauge total pressure is 101325 p initial gauge pressure is 90000 p outlet absolute pressure is 80000 p 262436767_330566055172100_4774556658446665420_n.png Last edited by shatarah; December 9, 2021 at 09:53.

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ansys, cfd, fluent, mesh, mesh 2d

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