| EPSRC Reference: |
GR/M84367/01 |
| Title: |
DARP: TURBULENT TRANSPORT & RELAXATION STRESS MODELLING FOR ADVERSE PRESSURE-GRADIENT FLOWS |
| Principal Investigator: |
Henry, Dr F |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Sch of Engineering and Mathematical Sci |
| Organisation: |
City, University of London |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
05 April 2000 |
Ends: |
04 October 2003 |
Value (£): |
125,365
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| EPSRC Research Topic Classifications: |
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| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
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Summary on Grant Application Form |
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We propose to investigate the modelling of turbulent transport as the possible cause for the failure of all current turbulence closures to predict the behaviour of flows dominated by adverse pressure gradients. This will be achieved by the development, calibration and assessment by comparisons with standard benchmark experiments of a number of alternative models derived from a rational representation of the triple velocity correlations [Younis, Gatski & Speziale, NASA-TM L-17847, 1999] that allows for their explicit dependence on the gradients of mean velocity. This dependence is required by the exact governing equations but is absent from all current closures. In parallel, and in order to improve the prediction of non-equilibrium flows, we will explore the benefits of using stress relaxation approach to allow for the finite time required by the turbulence field to respond to the sudden application (or removal) of adverse pressure gradients. Progress here will lead to better prediction of shock-wave/boundary layer interactions and of shock-induced separation. All turbulence model development: will be validated against benchmark data from simple, attached, flat-plate boundary-layer flows as well as from more complex cases involving shock-induced separation. The latter will be handled using RANSMB: the aerospace-industry standard Navier-Stokes solver.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.city.ac.uk |