Baldwin-Lomax Model

July 4, 2002, 09:36

Has anyone already tried to implement Baldwin Lomax model in Star CD or ES Turbo? It would be helpfull a lot! Thanks

September 20, 2002, 04:46

Hi, In fact I have used BL model in my MS thesis code with Cebeci-Smith and Johnson-King models, though not in STAR. Although it is very simple its main drawback is determining a lengthscale, i.e. l(x).Also this model is very dependent on the geometry.

Try to setup BL model as: l = 0.4 s [1-exp(-s' /26)] vt(i) = l^2 w; w=rate of rotation tensor. vt(o) = 0.0168 Ccp Fw Gk; Gk:Klebanoff intermittency factor; Fw:wake parameter

All theoretical details can be found in Baldwin-Lomax,AIAA 78-287.

Hope this helps a bit, Sener Yilmaz

July 4, 2002, 09:36	Baldwin-Lomax Model	#1
Maya Guest Posts: n/a	Has anyone already tried to implement Baldwin Lomax model in Star CD or ES Turbo? It would be helpfull a lot! Thanks

September 20, 2002, 04:46	Re: Baldwin-Lomax Model	#2
Sener Yilmaz Guest Posts: n/a	Hi, In fact I have used BL model in my MS thesis code with Cebeci-Smith and Johnson-King models, though not in STAR. Although it is very simple its main drawback is determining a lengthscale, i.e. l(x).Also this model is very dependent on the geometry. Try to setup BL model as: l = 0.4 s [1-exp(-s' /26)] vt(i) = l^2 w; w=rate of rotation tensor. vt(o) = 0.0168 Ccp Fw Gk; Gk:Klebanoff intermittency factor; Fw:wake parameter All theoretical details can be found in Baldwin-Lomax,AIAA 78-287. Hope this helps a bit, Sener Yilmaz

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