How can I solve the mesh dependancy problem?

amirlachraf · June 16, 2019, 05:30

How can I solve the mesh dependancy problem?

I am trying to study the flow of non-reactive mixture of species through a sudden expansion. My problem is steady state and Reynolds number on average 700, with inlet and outlet of 2 mm and 3 mm respectively
The problem I encountered was the dependancy of the results on the mesh size, so when I optimize my mesh, the results become far apart.
Please let me know what to do?

MIDHUN@CFD · July 20, 2019, 02:57

first u have to mesh with good quality and according to standards setting y plus correctly .. then after getting results increase mesh intensity and check for changes in results.

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June 16, 2019, 05:30	How can I solve the mesh dependancy problem?	#1
amirlachraf New Member LACHRAF ABDELBASSET Join Date: Nov 2016 Posts: 3 Rep Power: 0	How can I solve the mesh dependancy problem? I am trying to study the flow of non-reactive mixture of species through a sudden expansion. My problem is steady state and Reynolds number on average 700, with inlet and outlet of 2 mm and 3 mm respectively The problem I encountered was the dependancy of the results on the mesh size, so when I optimize my mesh, the results become far apart. Please let me know what to do?

July 20, 2019, 02:57		#2
MIDHUN@CFD Member MIDHUN Join Date: Nov 2012 Location: calicut Posts: 46 Rep Power: 14	first u have to mesh with good quality and according to standards setting y plus correctly .. then after getting results increase mesh intensity and check for changes in results.