GAMBIT "Set Face element Type"

Mohsin · November 1, 2010, 03:04

hello

What is the purpose of "Ste face element type" If I increase the number of nodes to 9 node for quadrilateral and 6 nodes for traingle face element then do my results will become more accurate? (as for a single element FLUENT has to solve now 9 nodes instead of original 4 nodes)

Can u put some light on this as Gambit modeling guide doenst explain in detail. Thanks
Mohsin

-mAx- · November 2, 2010, 03:21

from the Modeling Guide:
"NOTE: Finite-element solvers, such as the FIDAP solver, employ higher-order elements (for example, 8-node and 9-node quadrilateral elements). Finite-volume solvers, such as FLUENT/UNS, employ only linear elements (for example, 4-node quadrilateral elements). "

Mohsin · November 2, 2010, 03:27

thankyou Max

I have read this Note in Gambit Modeling guide But Finite volume solvers can also employ 8, 20, 27 nodes. My question was that whether increasing the number of nodes increases accuracy?what effect it has on quality of mesh?

November 1, 2010, 03:04	GAMBIT "Set Face element Type"	#1
Mohsin Senior Member Mohsin Mukhtar Join Date: Mar 2010 Location: South Korea Posts: 249 Rep Power: 17	hello What is the purpose of "Ste face element type" If I increase the number of nodes to 9 node for quadrilateral and 6 nodes for traingle face element then do my results will become more accurate? (as for a single element FLUENT has to solve now 9 nodes instead of original 4 nodes) Can u put some light on this as Gambit modeling guide doenst explain in detail. Thanks Mohsin

November 2, 2010, 03:21		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	from the Modeling Guide: "NOTE: Finite-element solvers, such as the FIDAP solver, employ higher-order elements (for example, 8-node and 9-node quadrilateral elements). Finite-volume solvers, such as FLUENT/UNS, employ only linear elements (for example, 4-node quadrilateral elements). " __________________ In memory of my friend Hervé: CFD engineer & freerider

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November 2, 2010, 03:27		#3
Mohsin Senior Member Mohsin Mukhtar Join Date: Mar 2010 Location: South Korea Posts: 249 Rep Power: 17	thankyou Max I have read this Note in Gambit Modeling guide But Finite volume solvers can also employ 8, 20, 27 nodes. My question was that whether increasing the number of nodes increases accuracy?what effect it has on quality of mesh?