CFD Apps - https://cfdapps.appspot.com - is an online portal to enable advanced CFD modelling using simple application specific submission process. This presentation provides a getting started user guide for the use of the Vehicle Aerodynamic Study portal. This portal is dedicated to the simulation of the vehicle aerodynamic, in particular airflow path and extraction of drag and downforce parameters.

1. Vehicle Aerodynamic Study - User Guide
CFD Apps, a Webportal
for CFD Modeling

2. Copyright (C) 2014 Hibou Scientific Software Pty Ltd
www.hibouscientificsoftware.com.au
Presentation Outline
1.Objective(s) of the Presentation
2.Geometry Preparation
3.Web Portal Overview

3. Copyright (C) 2014 Hibou Scientific Software Pty Ltd
www.hibouscientificsoftware.com.au
Presentation Objective(s)
• Ensure that customers are confident in
how to prepare their geometry and use the
portal;
• Reduce the number of "false" or
"erroneous" submissions.

4. Copyright (C) 2014 Hibou Scientific Software Pty Ltd
www.hibouscientificsoftware.com.au
Geometry Preparation
1.Orientation & positioning;
2.Group splitting & naming;
3.Other items.

5. Copyright (C) 2014 Hibou Scientific Software Pty Ltd
www.hibouscientificsoftware.com.au
Geometry Preparation
Car should be facing the -y axis
direction

6. Copyright (C) 2014 Hibou Scientific Software Pty Ltd
www.hibouscientificsoftware.com.au
Geometry Preparation
Align lowest point of wheels
with plane z = -5mm

7. Copyright (C) 2014 Hibou Scientific Software Pty Ltd
www.hibouscientificsoftware.com.au
Geometry Preparation
Wheel-Front-Left
Wheel-Front-Right
Front-Wing
Rear-Wing
Wheel-Back-Left
Wheel-Back-Right
Body
SketchUp groups and STL solid
naming convention:

8. Copyright (C) 2014 Hibou Scientific Software Pty Ltd
www.hibouscientificsoftware.com.au
Geometry Preparation
• If submitting geometry using STL file
format:
• Use meter units;
• Ensure that parts are correctly splitted and that the
solid are named correctly (ie as per the previous
slide);
• If submitting geometry using the SketchUp
file format:
• Ensure that group and components are named
correctly.

9. Copyright (C) 2014 Hibou Scientific Software Pty Ltd
www.hibouscientificsoftware.com.au
Web Portal
URL: https://cfdapps.appspot.com
• Geometry in SketchUp or
STL format;
• Scenario setup parameters:
• Velocity
• Yaw angle

10. Copyright (C) 2014 Hibou Scientific Software Pty Ltd
www.hibouscientificsoftware.com.au
CFD Apps - Vehicle Aerodynamic Study
Thank you for your time and attention,
Question(s)?
Contact us at
info@hibouscientificsoftware.com.au