03 September 2014
  Welcome Guest
  Login | Help
General Information
Transaction Series
Related Information
Connect with WIT Press
Connect with WIT
Login ID:
Your Cart
There are 0 items in your cart. [View]

Adobe PDF Reader is required to view our papers:
Get Acrobat Reader

  Welcome to the WIT eLibrary

The home of the Transactions of the Wessex Institute collection, providing on-line access to papers presented at the Institute's prestigious international conferences and from its State-of-the-Art in Science & Engineering publications.

Paper Information

Aerodynamic flow simulation

Author(s): R. W. Derksen & J. Rimmer

This paper reports our experience of applying a vortex cloud model to simulate the flow over airfoil sections at low-Reynolds numbers.

Low-Reynolds number aerodynamics has become increasingly important of late due to interest in the development of unmanned aerial vehicles.

The current state-of-the-art consists of a good base of modern experimental data, but relies on simulation methods based on high-Reynolds number experience.

Vortex cloud models are numerical flow simulation methods that are based on inviscid flow tools.

The method continuously injects many free vortices within the flow field and tracks their convection with time.

The convective velocity is determined from the inviscid velocity component due to any bodies within the flow field, all free vortices, and a random component.

The random component of the velocity field introduces a viscous effect and its value is scaled to the Reynolds number.

Vortex cloud models are believed to be capable of modelling viscous flows and should be able to model separated flow without introducing special methods.

We will provide an assessment of the predicted flow for a range of angles of attack for a selected set of airfoils when compared to the very good low-Reynolds number airfoil datacompiled by Selig and his co-workers.

aerodynamics, vortex cloud models, panel methods.

1 Introduction:
The development of aerodynamic flow simulation methods has a substantial history that demonstrates a creative intellectual effort to overcome the difficulties inherent to the governing equations of fluid mechanics.

Early efforts at simulating aerodynamic flows were limited by our inability to obtain analytical solutions to the Navier-Stokes equations to all but a few idealized examples. ...

Pages: 9
Size: 388 kb
Paper DOI: 10.2495/AFM060071



Download the Full Article

Price: US$ 0.00

This article is part of the WIT OpenView scheme and you can download the full text Adobe PDF article for FREE by clicking the 'Openview' icon below.


Send this page to a friend. Send this page to a colleague.

This paper can be found in the following book

Advances in Fluid Mechanics VI

Advances in Fluid Mechanics VI

Buy Book from

Download the Full Article

This article is part of the WIT OpenView scheme and you can download the full text Adobe PDF article for FREE by clicking the 'Openview' icon to the right.

Copyright© 2006 by WIT Press | About Prof Carlos Brebbia
Optimised for Microsoft Internet Explorer