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-   -   XFLOW Does anyone know something about that? (http://www.cfd-online.com/Forums/main/89878-xflow-does-anyone-know-something-about.html)

eleazar June 24, 2011 10:52

XFLOW Does anyone know something about that?
 
Hi guys

I read the brochure from MSC and as i understant it is a meshfree aerodynamic software, does anyone used it?

i believe that ir needs a lot of time to solve an aerodynamic problem if it is SPH and also it needs high end computers,

so what kind of meshfree method does it use?

Kevin De Smet June 24, 2011 14:04

My guess is it was derived from their RealFlow product, geared towards visual special effects and animation. And they took that and made it more realistic. So what you get is a software not derived from scientists but artists, kind of. It may turn into something great one day?

cfd_newbie June 25, 2011 05:18

Quote:

Originally Posted by eleazar (Post 313414)
Hi guys

I read the brochure from MSC and as i understant it is a meshfree aerodynamic software, does anyone used it?

i believe that ir needs a lot of time to solve an aerodynamic problem if it is SPH and also it needs high end computers,

so what kind of meshfree method does it use?

It's a very new software with a very small team, thats why they are going that low key. The kick-ass visualization is due parent companies vast expertise in animation.

What I know it that it's quite good in subsonic and transonic regime while in supersonic speeds it's not very well tested.

Note - These are all my personal comments.

Med August 5, 2011 22:45

about Xflow
 
Quote:

Originally Posted by eleazar (Post 313414)
Hi guys

I read the brochure from MSC and as i understant it is a meshfree aerodynamic software, does anyone used it?

i believe that ir needs a lot of time to solve an aerodynamic problem if it is SPH and also it needs high end computers,

so what kind of meshfree method does it use?

------------------------------------------------------------------------
Xflow does not use the Navier-Stockes Equation for continuous Fluid Mechanics, it use Lattice Boltzmann method (LBM) and Lattice Gas Automata (LGA) (methods based on a mesoscopic framework) and extends them to overcome most of the limitations present on these schemes.

Saket.Chaudhary August 25, 2011 11:41

@ Eleazar: XFlow solves the external aerodynamics with very acceptable engineering simulation time and accuracy. These are transient analysis so they run longer, I run most of my simulations on a standard desktop.

@ Kevin De: Visualization has some background of realflow, however under the hood its a code that eliminates barriers with traditional CFD softwares like meshing, dirty CAD, complex motion problems and solves them with accuracy.

JBeilke August 25, 2011 14:20

Quote:

Originally Posted by Saket.Chaudhary (Post 321602)
... that eliminates barriers with traditional CFD softwares like meshing, dirty CAD ...

... and the code has some built in intelligence to decide, if a gap or hole in a dirty cad model is there in purpose ... ;)

Saket.Chaudhary August 25, 2011 14:27

Hey Joern,

I like the skepticism.
XFlow is certainly a paradigm shift where it eliminates the barriers from traditional CFD of meshing, dirty CAD , complex motion problems.

Saket

mecobio August 12, 2013 11:33

Quote:

Originally Posted by eleazar (Post 313414)
Hi guys

I read the brochure from MSC and as i understant it is a meshfree aerodynamic software, does anyone used it?

i believe that ir needs a lot of time to solve an aerodynamic problem if it is SPH and also it needs high end computers,

so what kind of meshfree method does it use?

Some people don't know what they are selling. LBM is usually Cartesian based, so there is a mesh. If someone tells you that, he has not a clue about what he/she is selling to you ;)


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