Accuracy of Circulation Estimation Schemes Applied to Discretised Velocity Field Data

Hassan, E. R., Lau, T. C. W. and Kelso, R. M. (2007). Accuracy of Circulation Estimation Schemes Applied to Discretised Velocity Field Data. In: Peter Jacobs, Tim McIntyre, Matthew Cleary, David Buttsworth, David Mee, Rose Clements, Richard Morgan and Charles Lemckert, 16th Australasian Fluid Mechanics Conference (AFMC). 16th Australasian Fluid Mechanics Conference (AFMC), Gold Coast, Queensland, Australia, (142-145). 3-7 December, 2007.

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Author Hassan, E. R.
Lau, T. C. W.
Kelso, R. M.
Title of paper Accuracy of Circulation Estimation Schemes Applied to Discretised Velocity Field Data
Conference name 16th Australasian Fluid Mechanics Conference (AFMC)
Conference location Gold Coast, Queensland, Australia
Conference dates 3-7 December, 2007
Proceedings title 16th Australasian Fluid Mechanics Conference (AFMC)
Place of Publication Brisbane, Australia
Publisher School of Engineering, The University of Queensland
Publication Year 2007
Year available 2007
Sub-type Fully published paper
ISBN 978-1-864998-94-8
Editor Peter Jacobs
Tim McIntyre
Matthew Cleary
David Buttsworth
David Mee
Rose Clements
Richard Morgan
Charles Lemckert
Start page 142
End page 145
Total pages 4
Collection year 2007
Language eng
Abstract/Summary Numerical experiments are conducted on the velocity field of the Oseen vortex to determine the effect of random errors in the velocity field on the circulation estimate. The circulation is estimated by either a velocity integral or a vorticity integral over a particular region of integration. A novel method for the determination of this region is used. The accuracy of circulation estimation schemes is characterised in terms of the velocity sample spacing, the amount of random noise in the velocity field and the vorticity estimation scheme used. It is found that, in general, the velocity integral outperforms the vorticity integral in terms of reducing total error.
Subjects 290501 Mechanical Engineering
Q-Index Code E1

 
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Created: Tue, 18 Dec 2007, 14:32:14 EST by Laura McTaggart on behalf of School of Engineering