| EPSRC Reference: |
GR/R85358/01 |
| Title: |
AD2 Compeng- Automatic Differentiation and Adjoints Applied to Computational Engineering |
| Principal Investigator: |
Forth, Dr SA |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Cranfield Defence and Security |
| Organisation: |
Cranfield University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
18 March 2003 |
Ends: |
17 March 2006 |
Value (£): |
159,806
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| EPSRC Research Topic Classifications: |
| Aerodynamics |
Numerical Analysis |
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| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
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| Panel History: |
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Summary on Grant Application Form |
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Automatic Differentiation (AD) enables the calculation of Jacobian-vector products or adjoints (vector-Jacobian products) of functions defined by computer codes. The adjoint approach enables the calculation of gradients with run-time cost independent of the number of inputs and so is well suited to optimisation. Few practising UK engineers are aware of the capabilities of AD. Though the UK is strong in development of AD theory and specialist AD tool development we require more AD applications specialists to provide a link from the theory into the engineering community.We shall use AD to provide adjoint code for a steady flow solver and compare with hand-coded adjoint code. We shall produce adjoint code for a space-marched supersonic flow solver, a novel achievement necessitating overcoming efficiency and storage problems. We shall provide gradient code for involved engineering design problems allowing for the use of hybrid evolutionary/gradient based methods and so enhacing computational efficiency. We shall provide Jacobian-vector product code for a CFD Newton solver allowing for fast,robust convergence (compared to finitedifferencing) in the presence of involved turbulence models and poor conditioning. We will thoroughly educate a new AD application specialist.
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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.cranfield.ac.uk |