| EPSRC Reference: |
GR/M43821/01 |
| Title: |
COMPUTATION OF UNSTEADY FLOW AROUND OSCILLATING BLADES IN MULTIPLE BLADEROWS BY A SINGLE-PASSAGE APPROACH |
| Principal Investigator: |
He, Professor L |
| Other Investigators: |
|
| Researcher Co-Investigators: |
|
| Project Partners: |
|
| Department: |
Engineering and Computing Sciences |
| Organisation: |
Durham, University of |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 July 1999 |
Ends: |
30 June 2002 |
Value (£): |
155,198
|
| EPSRC Research Topic Classifications: |
|
| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
|
|
| Related Grants: |
|
| Panel History: |
|
|
Summary on Grant Application Form |
|
Understanding and prediction of unsteady flow effects are important in development of modern high performance turbomachinery. Conventional multi-passage time-domain CFD calculations are featured by very high demands on computing resources. For blade flutter applications, unsteady flow computations for oscillating blades would normally have to be carried out for a whole annulus configuration. This would be extremely time-consuming, even for an isolated bladerow. It has been recently shown that adjacent bladerows can have profound effects on blade aeroelastic stability. The need to include the multi-bladerow effects in blade flutter analysis presents a further challenge to the conventional multi-passage approach.It is proposed to develop, validate and apply an efficient single-passage approach to unsteady flow computations. The approach will be based on a novel Fourier-tranform based phase-shift periodic condition method, capable of dealing with multiple unsteady disturbances. It will be implemented in a 3D time-marching Navier-Stokes solver. The validity and effectiveness of the new method will be examined and demonstrated in comparison with the conventional multi-passage approach. The method will be applied to analysing aeroelastic characteristics of a rotor bladerow embedded in multiple bladrows. The work will be carried out by a postdoctoral research assistant with intensive use of a modern workstation.
|
|
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: |
|