[EnergyPlus_Support] Re: CFD

Just to add to Jim’s comment, the DesignBuilder model can take simulation results as an output from EnergyPlus (at a selected date/time) and feed them directly into the CFD engine as boundary (starting) conditions for the CFD calculation. You should find tutorials on this on the DesignBuilder website.

I hope that helps,

David Cocking

Director I Tel: +44 (0)1453 755500 I david.cocking@xxxxxxxxxxxxxxxxxxx

DesignBuilder Software Ltd, 1st Floor, Clarendon Court, 54-56 London Rd, Stroud, GL5 2AD

www.designbuilder.co.uk

2a

CFD

Mon Feb 27, 2017 11:25 am (PST) . Posted by:

"rasha mahmoud" roushaa_84

Greetings,
Can I use EnergyPlus in CFD simulation as a stand alone program without using Designbuilder.
Thank you very much

Reply to sender . Reply to group . Reply via Web Post . All Messages (3) . Top ^

2b

Re: CFD

Mon Feb 27, 2017 11:43 am (PST) . Posted by:

"Jim Dirkes" jvd2pe

No. EnergyPlus is an energy analysis program and has no CFD capabilities.

DesignBuilder makes CFD easier for you because it makes use of the geometry
and other information that you've already entered - that's a nice advantage
of the DB GUI. there may be a CFD package which can read E+ geometry, but
I'm unaware of it.

On Mon, Feb 27, 2017 at 2:22 PM, rasha mahmoud roushaa_84@xxxxxxxxx
[EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:

>
>
> Greetings,
>
> Can I use EnergyPlus in CFD simulation as a stand alone program without
> using Designbuilder.
>
> Thank you very much
>
>
>

--

James V Dirkes II, PE, BEMP, LEED AP
CEO/President
The Building Performance Team Inc.
1631 Acacia Dr, GR, Mi 49504

Direct: 616.450.8653
jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx

Website <http://buildingperformanceteam.com>l LinkedIn
<https://www.linkedin.com/pub/jim-dirkes/7/444/413> | May 2016 ASHRAE
Journal article on energy modeling
<http://buildingperformanceteam.com/bpt-insights-blog/item/73-modeled-performance-isn-t-actual-performance>

Choice. It is perhaps the most distinct and dignifying characteristic
of humans. Consciously and with understanding, we choose what is true,
honorable, right, pure, lovely … or otherwise. Like the rest of
humanity, my choices don’t always align with true, honorable, right,
pure, and lovely, but I know those are what I set my sights upon. I
choose them.

Reply to sender . Reply to group . Reply via Web Post . All Messages (3) . Top ^

2c

Re: CFD

Mon Feb 27, 2017 12:01 pm (PST) . Posted by:

"Edward G. Lyon" nedlyon01

Rasha,

The answer probably depends on what you want to do. I know there is a CFD component to Designbuilder, but I am uncertain exactly how it is linked (if at all) to EnergyPlus. I assume you want E+ to either provide input to CFD or CFD to provide input to E+. So E+ actually can run outside Designbuilder. Designbuilder just generates code for geometry and mechanical systems and desired outputs before it runs the E+ simulation.

You will have to do a lot of coding if you want to link a CFD run to a running E+ simulation, but I believe there are ways to do it.

ODS Studio has code to generate E+ geometry in Blender and link that to OpenFoam CFD. However, the sharing part is to develop pressure coefficients in a Virtual Wind Tunnel for AirFlowNetwork simulations in E+. There is no runtime data exchange.

Ned Lyon, P.E. (MA, WV)
Staff Consultant
SIMPSON GUMPERTZ & HEGER
781.907.9000 main
781.907.9350 direct
617.285.2162 mobile
781.907.9009 fax
www.sgh.com<http://www.sgh.com>

Send Files <https://infoexchange.sgh.com/UserWeb/Transfers/PersonalTransfer.aspx?personal=EGLyon@xxxxxxx>
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx]
Sent: Monday, February 27, 2017 2:23 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] CFD

Greetings,

Can I use EnergyPlus in CFD simulation as a stand alone program without using Designbuilder.

Thank you very much