CFD and experimental modelling of an impinging jet for thunderstorm downburst simulation

Mason, Matthew S., Wood, Graeme S., & Fletcher, David F. (2006) CFD and experimental modelling of an impinging jet for thunderstorm downburst simulation. In 7th UK Conference on Wind Engineering, 2006, Glasgow, Scotland.

Abstract

A thunderstorm downburst in its simplest form can be modelled as a steady flow impinging air jet. Although this simplification neglects some important atmospheric and physical parameters it has proven to be a useful tool for understanding the kinematics of these events. Assuming this simple impinging jet model also allows numerical models to be developed which can be directly compared with experimental results to validate the use of CFD. Confidence gained from these simulations will allow the use of more complex atmospheric impinging jet models that cannot be directly validated. Thunderstorm downbursts are important for wind engineers because in many parts of the world they produce the design wind speeds used in design standards, but are not structurally represented in these documents.

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ID Code: 73661
Item Type: Conference Paper
Refereed: Yes
Keywords: thunderstorm, downburst, wind engineering, CFD
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > INTERDISCIPLINARY ENGINEERING (091500) > Computational Fluid Dynamics (091501)
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2006 [please consult the author]
Deposited On: 11 Jul 2014 00:13
Last Modified: 22 Jul 2014 20:20

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