Comments on: CFD in 2013: what will change? what will not

By: Swapnil Gaul

Swapnil Gaul — Mon, 19 Jan 2015 10:06:50 +0000

nice!

By: This Week in CFD | Another Fine Mesh

This Week in CFD | Another Fine Mesh — Fri, 08 Nov 2013 16:47:38 +0000

[…] over. While some may take this opportunity to look forward to 2014, I’d like to look back at CFD in 2013: what will change? what will not on the CAE Watch blog published back on 31 Dec […]

By: Ann

Ann — Fri, 27 Sep 2013 22:50:09 +0000

In reply to Manoj.

Just a comment: There is an interest work on LB on http://dx.doi.org/10.1103/PhysRevE.88.013314, where CPU is used and not GPU.

By: Ann

Ann — Fri, 27 Sep 2013 22:44:43 +0000

Just a question:

You wrote: “As a side-effect of pre-commoditization, buyers do not have much negotiating power on pricing. You probably will not expect any price cut of CFD software. Of course, almost all vendors will continue to enjoy high profit margin”.

I’m little bit confused. The prices of commercial CFD has decreased in the last years. From a one-year license for about 25 000 USD to a perpetual license for the same 25 000 USD.
Some how, their margin profits has decreased a lot, Or?. If the “trend” continues they will be cheaper. Therefore, I don’t know from where you got the “vendors will continue to enjoy high profit margin”.

Please, I will be interested to know how you reason about your aforementioned statement.

Thanks

By: shengwei

shengwei — Wed, 25 Sep 2013 13:28:58 +0000

In reply to Manoj. If you are talking about FDS, GPU is not used, as I know.

By: Manoj

Manoj — Tue, 24 Sep 2013 09:37:21 +0000

2 days back my boss asked about GPU instead CPU. came to know from your post that lattice Boltzman equation based software can make use of this. Need to know Fire dynamics simulator can make use of it.

By: shengwei

shengwei — Mon, 12 Aug 2013 13:23:53 +0000

In reply to Stan Posey. Thank you for your detailed info on the status of GPU for CFD solvers.

By: Mecobio

Mecobio — Mon, 12 Aug 2013 12:44:48 +0000

Regarding the LBE: The LBE based CFD is not “a changer” in 2013 for the same reasons it was not in 2012. There are very few people dealing with LB, comparing with NS, as there are very few people dealing with Monte Carlo compared to NS. It is not because the LB method is not prepared, but the users are not prepared, and actually probably won’t be. You may need a generation change, to hopefully be “a changer”, so death will eventually make LBE based CFD ”a changer” 🙂

By: Stan Posey

Stan Posey — Fri, 09 Aug 2013 19:24:18 +0000

Thanks for the thoughtful review, regarding #6 about GPUs:

1. ANSYS Fluent 15.0 in Q4 2013 will feature a GPU-based AMG solver with most benefit coming from coupled solver use
2. Commercial vendors FluiDyna (fluidyna.de) and Vratis (vratis.com) have GPU-based solvers for OpenFOAM today
3. FluiDyna also have a LBM product on GPUs called LBultra which can speedup a simulation by 20x (they report)
4. Other GPU developments exist and continue to improve such as AcuSolve from Altair, Moldflow from Autodesk, etc.
5. Nearly every commercial CFD vendor has either a GPU product evaluation or research project ongoing — please ask

By: shengwei

shengwei — Thu, 17 Jan 2013 12:54:20 +0000

In reply to Chandra Bhushan Roy. Thank you for your valuable input.

By: shengwei

shengwei — Thu, 17 Jan 2013 12:53:08 +0000

In reply to Jimmy. I am very glad to know this tiny blog is helpful for you.

By: shengwei

shengwei — Thu, 17 Jan 2013 12:52:02 +0000

In reply to Ries Bouwman. Thank you for your comments.

By: Jimmy

Jimmy — Tue, 15 Jan 2013 07:07:14 +0000

Prophet for CFD!
Nice post, and very informative. I agree most of the 9 points, especially the ones on automated meshing, simple CFD and CFD guerrillas (I also cone of them!!).

Thank you for the nice blog, from which I learned a lot.

By: Ries Bouwman

Ries Bouwman — Tue, 08 Jan 2013 13:16:54 +0000

Nice summary! Let’s see how much of this we can tackle in 2013.

By: Chandra Bhushan Roy

Chandra Bhushan Roy — Thu, 03 Jan 2013 03:06:50 +0000

Good and honest post. Thanks
This post addressed big picture of CAE/CFD/hpc. Having worked in CFD and HPC interface at support level, I have to agree with misunderstanding most gorillas think as CFD understanding.
Now working in Marine Renewable Energy sector as grad student, openFOAM seems to be way for reliable and transparent solving of N-S equations. And who cares for cloud computing or any such word (market is mocking and cheating the researchers) , powerful machines and clusters are fine. CFD solvers are not like Angy-bird game. However big-data, would love to see myself stopped at such bottleneck.