mesh generation philosophy

October 4, 2007, 23:01

i'm new with CFX and i'm lost with the prametres (element,sizes,max....) is there any advice

October 5, 2007, 05:36

Elements may be a problem if they have any of:

TETRA:

Edge Length Ratio >100 Max Face Angle >170° Min Face Angle <10° Element Volume Ratio >30 Connectivity Number >50

------------------------------------

PYRA:

Edge Length Ratio >100 Max Face Angle >170° Min Face Angle <10° Element Volume Ratio >5

------------------------------------

PRISM:

Edge Length Ratio >100 Max Face Angle >170° Min Face Angle <10° Element Volume Ratio >5 Connectivity Number >12

------------------------------------

HEXA:

Edge Length Ratio >100 Max/Min Edge Length >100 Min Face Angle <10° Element Volume Ratio >5 Connectivity Number >24

------------------------------------

October 5, 2007, 23:34

the probleme i don't know how it generetes the mesh and what the key parameters to carry out a good simulation and morover how to set(define) them?

October 4, 2007, 23:01	mesh generation philosophy	#1
amine Guest Posts: n/a	i'm new with CFX and i'm lost with the prametres (element,sizes,max....) is there any advice

October 5, 2007, 05:36	Re: mesh generation philosophy	#2
Nicola Guest Posts: n/a	Elements may be a problem if they have any of: TETRA: Edge Length Ratio >100 Max Face Angle >170° Min Face Angle <10° Element Volume Ratio >30 Connectivity Number >50 ------------------------------------ PYRA: Edge Length Ratio >100 Max Face Angle >170° Min Face Angle <10° Element Volume Ratio >5 ------------------------------------ PRISM: Edge Length Ratio >100 Max Face Angle >170° Min Face Angle <10° Element Volume Ratio >5 Connectivity Number >12 ------------------------------------ HEXA: Edge Length Ratio >100 Max/Min Edge Length >100 Min Face Angle <10° Element Volume Ratio >5 Connectivity Number >24 ------------------------------------

October 5, 2007, 23:34	Re: mesh generation philosophy	#3
amine Guest Posts: n/a	the probleme i don't know how it generetes the mesh and what the key parameters to carry out a good simulation and morover how to set(define) them?

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