| EPSRC Reference: |
GR/R56594/01 |
| Title: |
A new Approach to modelling the fluctuating turbulant velocity-pressure gradient correlations |
| Principal Investigator: |
Younis, Professor B |
| Other Investigators: |
|
| Researcher Co-Investigators: |
|
| Project Partners: |
|
| Department: |
Sch of Engineering and Mathematical Sci |
| Organisation: |
City, University of London |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 2001 |
Ends: |
31 December 2001 |
Value (£): |
23,058
|
| EPSRC Research Topic Classifications: |
|
| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
|
|
| Related Grants: |
|
| Panel History: |
|
|
Summary on Grant Application Form |
|
The proposed research is concerned with modelling the fluctuating velocity--pressure gradient correlations that appear in the Reynolds-stress equations. The conventional approach to modelling these correlations has been to split them into two terms (pressure redistribution and pressure diffusion) that are then treated separately. An unsatisfactory aspect of this treatment is the universal neglect of the pressure diffusion term from engineering computational methods due to lack of clear evidence regarding its role and importance. A better approach, we believe, is to model the original term in its entirety without recourse to such arbitrary re-arrangement. This can be achieved by utilising recently-obtained results from Tensor Representation Theory which enable the representation of the original term (a fourth-order tensor function) in terms of known or knowable tensors of order two and three. The drawback with this approach is the complexity of the final outcome. This proposal is aimed at finding simplified forms of the general result that are both computationally practicable and rational. This will be achieved by the identification and application of suitable mathematical and physical constraints, and by making deductions based on published results from Direct Numerical and Large Eddy Simulations of benchmark shear flows.
|
|
Key Findings |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Potential use in non-academic contexts |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Impacts |
|
| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
|
| Date Materialised |
|
|
|
|
Sectors submitted by the Researcher |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
| Project URL: |
|
| Further Information: |
|
| Organisation Website: |
http://www.city.ac.uk |