Details of Grant 

EPSRC Reference:	GR/S12135/01
Title:	Modelling wind Flow over Bluff Bodies
Principal Investigator:	Castro, Professor I
Other Investigators:	Thomas, Dr TG
Researcher Co-Investigators:
Project Partners:	Silsoe Research Institute
Department:	Faculty of Engineering & the Environment
Organisation:	University of Southampton
Scheme:	Standard Research (Pre-FEC)
Starts:	01 April 2003	Ends:	31 March 2006	Value (£):	262,203
EPSRC Research Topic Classifications:	Aerodynamics
EPSRC Industrial Sector Classifications:	Aerospace, Defence and Marine
Related Grants:
Panel History:
Summary on Grant Application Form
Unsteady CFD methods like Large Eddy Simulation (LES), although currently not industry standards, are generally recognised to be the most appropriate modern approach for calculating flows around bluff obstacles, but face serious technical difficulties. In the context of Wind Engineering, scaling concerns in wind tunnel modelling have also recently become an issue, despite conventional wisdom. Furthermore, `classical' data commonly used to answer these concerns and to provide test cases for unsteady CFD methods lack the necessary definition and comprehensiveness. In particular, they do not contain information on the fluctuating flow dynamics (other than simple statistical averages), which is precisely one of the attractions of unsteady CFD methods like LES. Furthermore, understanding the fluctuating field is crucial to a proper appreciation of the practically important fluctuating loads.The intention is to undertake some carefully designed experiments on the flow around a simple, three-dimensional obstacle in a simulated atmospheric boundary layer, using a combination of PIV and point-based techniques, and then to use both this data and available LES data to generate greater understanding of the link between these motions and the unsteady surface pressure field and to identify Reynolds number effects on, particularly, the coherent vortex motions. As a crucial by-product, the comprehensive data bases, properly archived, will allow more complete and appropriate validation of unsteady CFD methods
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Organisation Website:	http://www.soton.ac.uk