3-d panel methods , inverse panel methods

[effuno]

i wish to code (in C) the 3-D panel method and inverse panel method..! but havnt yet found theretical explanation on how the eqns are formulated etc.!! cud someone help me to any ??

i've done the 2-d panel method taking help from the buk applied computational aerodynamics by Mason.!! but needs a better explanation on 3-d.( ssry...i'm new to this , almost. )

thanks for the help.!!

[Apex]

Quite impressive, would you mind making your code for the 2D version avaliable for us?

How do your results compare with X-Foil?

Was reading 'Fundamentals of aerodynamics' by Anderson and it states that the principals are esentially the same in 2D and 3D, but building the panels in 3D space becomes the difficult but to crack.

sorry - could'nt help.!!

[effuno]

i did on 4412 and the results were pretty much same as depicted in "APPLIED COMPUTATIONAL AERODYNAMICS" by mason.....

i dont mind sharing tat code.(i.e if i can get my usb mounted on the linux pcs in lab )

Writing tat code wasnt as tough as i thot it mit be..! just take the eqns from the buk and directly use it in prog..! ..maybe , yes, sorting out the panel and control points mit seem a bit complex.! and even better i had the advantage of being taught all those in my clases...


the code is still without all those decorative stuffs.. ..wonder if i'll do tat,(too lazy to waste time on luks ) ...so do u mind if i post it just the way it is now. ? !!:D

[Apex]

Sure, I dont mind. If its not too long could maybe post it here, else mail it to me.
Maybe just include a little txt file on the usage

I'm rather interested in this because I was so close to writing one myself

Thanks

[syguy]

I've just completed a steady/unsteady 3D Panel Method. The geometry capture/creation, meshing and results visualization are integrated into what I call a unified simulation environment. Take a look, any feedback is more than welcome.

[AeroGT3]

i'm wish to code (in C) the 3-D panel method and inverse panel method..! but havnt yet found theretical explanation on how the eqns are formulated etc.!! cud someone help me to any ??

i've done the 2-d panel method taking help from the buk apploed computational aerodynamics by Mason.!! but needs a better explanation on 3-d.( ssry...i'm new to this , almost. )

thanks for the help.!!

"Low Speed Aerodynamics" by Katz and Plotkin is a great book for 3-d panel codes. I read it and the methods work, but there area few errors so be careful!

Can anyone here comment on the use of Panel codes in F1/open wheel aero?

[syguy]

NEWPAN is a panel method that according to Flow Solutions:

... has a strong racing pedigree and has become the dominant panel method aerodynamic software in Formula One (often complemented by Navier-Stokes solvers). Every wing profile fitted to the cars of a leading F1 Championship contender since 1992 has been designed using NEWPAN (netting several world championships).

[cfditya]

what r panel codes????????????....i am new to CFD!!!!!!!

Thanks!!!!!

[syguy]

A panel method is a surface-based, gas and liquid flow analysis technique. By assuming that compressibility and viscous effects are negligible (potential flow), panel methods can rapidly (at least compared to volume-based techniques) simulate fluid flow over streamlined geometries such as race cars. Where the assumptions hold, panel methods can predict lift or downforce quite well.

Check out a panel method calculation comparison with experiment.

Panel methods are good for calculating results for incremental geometry changes - same goes for CFD in general. They are unable to predict total drag (pressure drag + skin friction), unless coupled with a boundary layer method. They can predict pressure drag.

Find out more.

[syguy]

Check out an article on 'Why Use Panel Methods?.