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Showing results 1 to 7 of 7 Search took 0.00 seconds. Search: Posts Made By: mecobio

Forum: Main CFD Forum August 20, 2013, 10:16

Replies: 44 PowerFlow (LBE) vs. Traditional (Navier Stokes)? Views: 16,616 Posted By mecobio You can also see page 10 in... You can also see page 10 in http://hiliftpw.larc.nasa.gov/Workshop2/ParticipantTalks/HLPW2-holman.pdf where a theoretical comparison is made between VLES and LES.

Forum: Main CFD Forum August 14, 2013, 11:18

Replies: 44 PowerFlow (LBE) vs. Traditional (Navier Stokes)? Views: 16,616 Posted By mecobio Difference between PowerFlow and Xflow I have done a little of a homework here and I found out interesting differences between PowerFLow and Xflow: To my knowledge, PowerFlow is based on standard derivation and matching convective...

Forum: Main CFD Forum August 12, 2013, 07:17

Replies: 44 PowerFlow (LBE) vs. Traditional (Navier Stokes)? Views: 16,616 Posted By mecobio Then, based on the above, the Xlfow seems to be... Then, based on the above, the Xlfow seems to be better for turbulence simulations than PowerFlow, as LES is supposed to be better than VLES. Interesting!! :) PS: Anyone with an already Xflow...

Forum: Main CFD Forum August 12, 2013, 06:24

Replies: 44 PowerFlow (LBE) vs. Traditional (Navier Stokes)? Views: 16,616 Posted By mecobio Thanks for your reply. First, it took me time... Thanks for your reply. First, it took me time (around 2 seconds) to find out the anachronism IMHO = In My Honest Opinion, right? :) A sign I'm getting older :) So, bottom line, PowerFlow 4.0 had...

Forum: Main CFD Forum August 11, 2013, 06:38

Replies: 44 PowerFlow (LBE) vs. Traditional (Navier Stokes)? Views: 16,616 Posted By mecobio I have noticed now that the number you mentioned... I have noticed now that the number you mentioned of 711 for N-S and 588 for LBM comes from table 2, page 1068 from the paper: http://www.sciencedirect.com/science/article/pii/S002199910800538X ...

Forum: Main CFD Forum August 9, 2013, 14:13

Replies: 44 PowerFlow (LBE) vs. Traditional (Navier Stokes)? Views: 16,616 Posted By mecobio Well, it depends on the definition of "usual LBM"... Well, it depends on the definition of "usual LBM" codes. There are several LB methods or approaches. There is a comparison among two of these LBM on: Mathematics and Computers in Simulation,...

Forum: Main CFD Forum June 30, 2013, 16:07

Replies: 44 PowerFlow (LBE) vs. Traditional (Navier Stokes)? Views: 16,616 Posted By mecobio some issues with LB RodriguezFatz, You wrote: "Solving Boltzmann equation is (physically) only better than the fluid equations" and later: "Boltzmann equation is numerically i) faster to solve and ii) more...

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