10/31/2014

ICEM CFD Introductory Course-Mesh Preparation and Output to Solver



To diagnose mesh associativity problems
Errors – most likely to cause problems in:
Solver translation
Solver input
Solution convergence/run
Possible Problems – “Unclean surface mesh”
Unwanted elements
Unwanted holes/gaps
May result in incorrect solution 
Can check any combination of errors/possible problems at any one time
Individually select
Click on Error or Possible Problems tabs will select all options in column – selecting again will de-select all
Set Defaults will select most commonly seen/detrimental diagnostics
Check Mode
Create Subsets – creates a subset of elements that fit each criteria
Check/Fix Each – offers automatic fixing of indicated problem

If Create Subsets was selected
Will go through all checked criteria at once
Elements that have a particular error/problem are put into a subset with that diagnostic type name
Subsets activated in Model Tree
Turn off all parts or shells to view subsets
If Check/Fix Each was selected
Will be prompted with options one criteria at a time
Fix:  Automatically fix the error/problem
Recommended only for Duplicate Elements, Volume Orientations, Periodic Problems, Overlapping Elements
Create Subset
Ignore

For example, multiple edges may be legitimate t-junctions; single edges – legitimate free edges

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