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Nozzle flow exit into confined region-with entrainment effect |
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March 4, 2025, 19:42
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Nozzle flow exit into confined region-with entrainment effect
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Senior Member
Shamoon Jamshed
Join Date: Apr 2009
Location: Islamabad
Posts: 400
Rep Power: 19   |
Hi,
I am simulating a nozzle flow where the nozzle lies in a confined region ( a type of coffin with open exit). The outer wall is offset from the center-line. When the nozzle exhaust flows the outer wall gets a very little influence of plume. However, the region just above the nozzle and (between the wall) is specified as pressure outlet. So i am running gauge values so only inlet pressure is specified while the press outlet is set to 101325 Pa and the operating pressure is set to 0. Solution diverges after aprrox. 50 iterations. I am using Coupled Method with pseudo time step with times step size to 0.05-0.1. Regards, SJ |
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