Title
Optimization in Fluid Mechanics

CoPED ID
00d633ae-a320-4368-a609-297bcab631f5

Status
Closed

Funders

Value
£539,406

Start Date
Nov. 30, 2016

End Date
Jan. 29, 2020

Description

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This project aims to realise the full potential of optimisation as a theoretical tool to study fluid mechanics motivated by our need to better understand and control flows around us. As an exemplar, the drag experienced by vehicles as they move through either air or water is a huge consumer of energy and source of carbon emissions which the UK urgently needs to reduce. In the past, optimisation has generally only been used with simplified constraints such as the linearised Navier-Stokes equations to keep problems tractable. Recently, however, two breakthroughs now strongly suggest that the solutions to more sophisticated optimisation problems can be successfully computed and a recent experiment highlights what may be achieved using clever geometry design.

This project will seek to exploit these exciting advances by developing new optimisation-based approaches to treat three key problems in fluid mechanics: 1) how to systematically search for new nonlinear flow solutions to the governing Navier-Stokes equations; 2) how to manipulate nonlinear stability via boundary geometry to design more energy-efficient fluid flows in pipelines; and 3) how to calculate the best rigorous upper estimates of energy consumption (or drag) in fully turbulent shear and convective flows.

Ashley Willis PI_PER

Subjects by relevance
  1. Optimisation
  2. Emissions
  3. Hydrodynamics
  4. Mechanics
  5. Physics of fluids
  6. Flow
  7. Fluids
  8. Hydromechanics
  9. Computational fluid dynamics
  10. Partial differential equations
  11. Liquids

Extracted key phrases
  1. New nonlinear flow solution
  2. Sophisticated optimisation problem
  3. Fluid Mechanics
  4. Efficient fluid flow
  5. Optimization
  6. New optimisation
  7. Clever geometry design
  8. Project
  9. Energy consumption
  10. Key problem
  11. Convective flow
  12. Problem tractable
  13. Stoke equation
  14. Theoretical tool
  15. Boundary geometry

Related Pages

UKRI project entry

UK Project Locations