[TRNSYS-users] generating wind pressure coefficients

[Dols, William Stuart (Fed)]

David,
You can use CFD0 incorporated into the CFD0Editor to generate wind pressure coefficient profiles for your specific building geometry.
Please see the following web page for the Coupled Multizone-CFD Tutorial which provides a link to a zip file that contains a CONTAM-30-Tutorial.pdf and files required to run the example cases. https://www.nist.gov/el/energy-and-environment-division-73200/nist-multizone-modeling/software-tools/contam/tutorials
See CASE 2: Exterior Zone Coupling within the PDF for a tutorial on how to accomplish this using the CFD0 Editor.
- Stuart

W. Stuart Dols
National Institute of Standards and Technology
Engineering Laboratory
Energy and Environment Division
Indoor Air Quality and Ventilation Group
Gaithersburg, MD USA



From: TRNSYS-users <trnsys-users-bounces at lists.onebuilding.org> On Behalf Of Jean Marais via TRNSYS-users
Sent: Friday, July 3, 2020 10:11 AM
To: TRNSYS users mailing list at OneBuilding.org <trnsys-users at lists.onebuilding.org>
Cc: Jean Marais <jeannieboef at gmail.com>
Subject: Re: [TRNSYS-users] generating wind pressure coefficients

I would also love to know. I've been pushing for DesignBuilder to incorporate this into their external CFD Model so I can transfer the boundary conditions easily to e+. I've been waiting 7 years at least. Till now, I've been using the algorithm in e+ AFN modules, but it's not ideal. I have to manually tweak for courtyards, and so on.

Am Di., 30. Juni 2020 um 07:39 Uhr schrieb David BRADLEY via TRNSYS-users <trnsys-users at lists.onebuilding.org<mailto:trnsys-users at lists.onebuilding.org>>:

Colleagues,

  Does anyone have any suggestions for tools to help with generating wind pressure coefficient values for buildings? I used to use CpGenerator and was very happy with its results. Sadly, it is no longer available. CPCALC is a little rough around the edges and I do not have project time or budget to get Cp values by testing. I imagine that the values can be generated by CFD analysis but I have no direct experience in that regard. I am interested to know whether people have found cost effective ways of generating Cp values.

I hope everyone is staying healthy!

David



--

***************************

David BRADLEY

Principal

Thermal Energy Systems Specialists, LLC

3 North Pinckney Street - suite 202

Madison, WI  53703 USA



P:+1.608.274.2577

F:+1.608.278.1475

d.bradley at tess-inc.com<mailto:d.bradley at tess-inc.com>



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