CFD Apps: User Guide for the Urban Wind Study App

CFD Apps, a Webportal for CFD Modelling

Urban Wind Study User Guide

Outline

1.Geometry Preparation

2.Analysis Submission

Geometry Preparation

Z

XAlign all building with ground

plane.

The App assumes flat ground plane located at the lowest z coordinate of the submitted geometry.


X

YZ

North

When preparing the geometry, remember that:• North is aligned with the y direction;• The z-direction is the up-direction (i.e towards the sky).


• If submitting geometry using STL file format:• Use meter units;• Use a ZIP archive with multiple STL files if required or easier.

• If submitting geometry using the SketchUp file format:

• Just make sure that the geometry is properly prepared as mentioned previously;

• Groups and components are acceptable, but just keep the number of them in the top level small...

Analysis Submission

URL: https://cfdapps.appspot.com

Analysis Submission

Enter your email address

Select the geometry file

Enter scenario parameters for up to 6 scenarios:

Wind speed;Wind height (ie the height

at which the wind speed occurs);Wind direction.

Click Cancel to close the Appor

Submit to proceed to the next step.

Analysis SubmissionSelect the analysis type from:

Analyse: Run the analysis. Payment will be processed through PayPal unless you

are registered for invoicing;

Analyse - Free Trial: Run the analysis at no cost provided that you are registered

for trial and have not yet used all the trial analysis. Registration is required

prior to submitting the analysis.

OpenFoam Setup: Prepare a openFoamsetup corresponding to the scenario(s)

submitted at no cost.

Cancel: Cancel the analysis.

Analysis Submission

Confirmation that the analysis has been submitted (or canceled) and will be processed shortly.

Analysis SubmissionOnce the analysis is submitted you should receive emails similar to the one shown below - openFoam Setup analysis will be slightly different:

Confirmation of simulation start.There is one simulation per

scenario

Confirmation the analysis submission including scenario

parameters

Link to CFD simulation results for download and local post-

processing

Link to result webpage showing automatic simulation post-

processing

CFD Apps

Thank you

Question(s)?

Contact us at [email protected]

CFD Apps: User Guide for the Urban Wind Study App

Technology

Transcript of CFD Apps: User Guide for the Urban Wind Study App