Projects
Projects: Projects for Investigator |
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| Reference Number | EP/I016015/1 | |
| Title | Control of boundary layer streaks induced by free-stream turbulence using a novel velocity-pressure control framework. | |
| Status | Completed | |
| Energy Categories | Renewable Energy Sources(Wind Energy) 5%; Energy Efficiency(Transport) 20%; Not Energy Related 70%; Other Power and Storage Technologies(Electric power conversion) 5%; |
|
| Research Types | Basic and strategic applied research 100% | |
| Science and Technology Fields | ENGINEERING AND TECHNOLOGY (Mechanical, Aeronautical and Manufacturing Engineering) 100% | |
| UKERC Cross Cutting Characterisation | Not Cross-cutting 100% | |
| Principal Investigator |
Dr G (George ) Papadakis No email address given Aeronautics Imperial College London |
|
| Award Type | Standard | |
| Funding Source | EPSRC | |
| Start Date | 01 September 2011 | |
| End Date | 31 August 2014 | |
| Duration | 36 months | |
| Total Grant Value | £374,395 | |
| Industrial Sectors | No relevance to Underpinning Sectors | |
| Region | London | |
| Programme | NC : Engineering | |
| Investigators | Principal Investigator | Dr G (George ) Papadakis , Aeronautics, Imperial College London (99.999%) |
| Other Investigator | Dr P (Pierre ) Ricco , Mechanical Engineering, University of Sheffield (0.001%) |
|
| Web Site | ||
| Objectives | Linked to grant EP/I016090/1 | |
| Abstract | In this proposal we aim to develop a new framework for active control of spatially developing flows and apply it to stabilise the streaky structures developing in incompressible and compressible boundary layers in the presence of high free-stream turbulence. This flow scenario is very common over aircraft wings and turbine blades. To the best of our knowledge, this is the first time that active control of such flows is attempted worldwide. The current approach, which is based on the wall-normal velocity and vorticity formulation to derive a state-space system suitable for controller design, has several limitations. The new control framework will use instead the primitive variables, velocity and pressure. This formulation offers greater flexibility and, most importantly, makes the incorporation of the effect of free-stream turbulence straightforward. This choice of variables however introduces new challenges from the control perspective because the standard optimal control algorithms can not be applied. In the attached case of support, the limitations of the current approach are explained, the benefits of the new formulation are highlighted and the challenges that must be dealt with for the successful control of streaks are analysed. This work offers a unique opportunity to put the UK in a leading position in the new and rapidly developing area of active flow control | |
| Publications | (none) |
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| Final Report | (none) |
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| Added to Database | 06/12/10 | |
