| EPSRC Reference: |
GR/R20694/01 |
| Title: |
Design, Construction & Initial Testing of a 360 Degree Flow Table With Motorised Flow Setting & Manual Control of Vertical Velocity Gradient |
| Principal Investigator: |
Salter, Professor S |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Sch of Mechanical Engineering |
| Organisation: |
University of Edinburgh |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 July 2001 |
Ends: |
31 March 2003 |
Value (£): |
127,564
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| EPSRC Research Topic Classifications: |
| Energy - Marine & Hydropower |
Fluid Dynamics |
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| EPSRC Industrial Sector Classifications: |
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Summary on Grant Application Form |
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The flows in or out at 45 points round the rim of a 1.3-metre diameter 0.15-metre deep test section will be controlled by changing the local pitch angle of the 48 blades of a single vertical-axis rotor. This rotor will be built into a circular plenum chamber below the test section. This plenum chamber gives a 1ow-loss return path and will be partly filled with air to reduce the source inertia. Each of the symmetrical foils will be rotated about its centre of pressure by a roller mounted on the tail of the foil which follows the profile of an adjustable cam. The cam will be made from very stiff rubber like a large O-ring and will be deformed from its initial circular shape by 45 eccentrics driven by a ring of static, computer-controlled stepping-motors. A new flow state should be set up in about 40 seconds. These motors will be mounted underwater in an inverted 'air-bell', continuously flushed with dry air and containing a Peltier-effect dehumidifier. Glass bottoms to the test section and the plenum chamber will help visualisation of the flow patterns. Flow from the rotor will be deflected 180 degrees into the test section by sets of nested circular guide-vanes mounted between a set of 72 vertical plates, which will suppress any circumferential flow. The two outer vanes in each set will be fixed but the upper third of two inner vanes will be hinged to allow + -10 degrees of deflection to vary the duct gap and so adjust the vertical gradient of velocity. The design of the variable-bend vanes will be based on initial investigations with the FLUENT computational fluid dynamics software.
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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.ed.ac.uk |