Dr Ben Evans

Ben Evans

 

Lecturer, College of Engineering

Overview

Dr Ben Evans is a lecturer in Aerospace Engineering and sits on the design team for the BLOODHOUND SSC Land Speed Record project.  Dr Evans's research interests range from computational shape optimisation and high speed aerodynamic modelling to molecular gas dynamics simulation.  He also has interests in engineering public engagement and engineering education.

Dr Evans is a director of the Engineering Education Scheme in Wales (EESW)

aerodoodle.swan.ac.uk

Research

Computational Fluid Dynamics

Dr Evans’ research in computational fluid dynamics has been largely in high speed aerodynamics and particle entrainment with application to the BLOODHOUND SSC Land Speed Record vehicle.  His interests and publications in this area range from numerical methods for solution of the compressible Navier-Stokes equations to data visualisation techniques and enhanced post-processing of CFD datasets for use in aerodynamic design.  Much of Dr Evans’s research makes use of the Swansea University FLITE3D CFD system and high performance parallel computing.

Wake Image

Flow visualisation of CFD results in the wake flow downstream of BLOODHOUND SSC airbrakes.

Particle impact ‌‌

Predicted areas of high intensity particle impact on the underside of the BLOODHOUND SSC vehicle.

Pressure Distribution

Mach 1.3 pressure distribution and streamribbons over a design configuration of BLOODHOUND SSC.

Unstructured hybrid mesh

Slice through an unstructured hybrid ‘mesh’ used for CFD simulations.

High Performance Computing‌‌

Dr Evans and a student with the College of Engineering High Performance Computing clusters.

Molecular Gas Dynamics

Dr Evans has interests in the use of finite element methods for the solution of the governing equation of molecular gas dynamics, the Boltzmann kinetic equation.  This non-continuum approach to studying fluids considers a gas at the molecular level before trying to recover macroscopic gas properties.  Applications his work in this area have included hypersonic rarefied gas flows over re-entry space vehicles and microscale modelling.

Molecules

Molecular Gas Dynamics involves the consideration of a fluid in terms of the motion of the individual molecules

Vehicle Re-entry

Simulation of a re-entry vehicle at high altitude travelling at Mach 25

Shape Optimisation

Dr Evans’s work on the design of the BLOODHOUND SSC land speed record vehicle has led to pioneering research in the field of aerodynamic design optimisation utilising methods including Design of Experiments, reduced order modelling, novel mesh movement techniques and genetic optimisation algorithms.

Parameterisation

Parameterisation of a complex geometry for an optimisaton study.

Control Nodes

Mesh-based optimisation using ‘control nodes’.

Mesh Movement

Control node mesh movement to define the optimum geometry for a supersonic jet air intake.

Engineering Education

Dr Evans has research interests in engineering education practice.  He has undertaken projects to investigate the impact of the use of integrating a variety of social media into undergraduate education with publications in the HEA Engineering Education journal.

Interactive teaching

Incorporation of YouTube and Twitter into the HE learning and teaching environment.

Find out more

Selected publications

  • B. Evans, C. Rose, Simulating the aerodynamic characteristics of the Land Speed Record vehicle BLOODHOUND SSC, Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2014, [ISSN:0954-4070], [DOI: 10.1177/0954407013511071]
  • Ben Evans, Air Pressure-Dependent Sensors, Aerospace Sensors, 2013, 1, 1, pp.19, [DOI: 10.5643/9781606500613]
  • B.J. Evans, O. Hassan, J.W. Jones, K. Morgan, L. Remaki, Computational fluid dynamics applied to the aerodynamic design of a land-based supersonic vehicle, Numerical Methods for Partial Differential Equations, 2011, 27, 1, [ISSN:0749159X], [DOI: 10.1002/num.20644]
  • Ben Evans, Ken Morgan, Oubay Hassan, A discontinuous finite element solution of the Boltzmann kinetic equation in collisionless and BGK forms for macroscopic gas flows, Applied Mathematical Modelling, 2011, 35, 3, [ISSN:0307904X], [DOI: 10.1016/j.apm.2010.07.027]
  • Ben Evans, Simulating steady state and transient aerodynamic flows using unstructured meshes and parallel computers, Computational Fluid Dynamics Review 2010, 2010, [ISBN:978-981-4313-36-0]
  • Guillermo Araya, Ben Evans, Oubay Hassan, Kenneth Morgan, Scale Adaptive Simulations over a Supersonic Car, Computational Fluid Dynamics 2010, 0, [ISBN:978-3-642-17883-2978-3-642-17884-9], [DOI: 10.1007/978-3-642-17884-9_99]

Teaching

  • EGA302A - Aerospace Engineering Design 3 (14/15)
  • EG-M90 - Advanced Aerodynamics (14/15)

Research theses supervised

PhD

  • 2013 - computational aerodynamic design optimisation for complex geometries (2nd Supervisor: Professor Oubay Hassan)

EngD

  • 2011 - Novel manufacturing methods and design approaches applied to the Land Speed Record vehicle, Bloodhound SSC (2nd Supervisor: Professor Johann Sienz)
  • 2010 - Development of heat transfer modelling techniques for solving complex industrial problems supported with experimentation (1st Supervisor: Professor Johann Sienz)

MSc

  • 2013 - 'An aerodynamic study of the PURIBAD system through the entirety of the delivery process via computational fluid dynamics simulations'
  • 2013 - 'Software use for the testing and development of airbags for the ATAX air delivery platform'
  • 2012 - 'Two dimensional aerodynamic optimisation of vertical axis wind turbine blades using unsteady state simulations'
  • 2012 - 'Aerodynamic simulation of the Puribad Aerial Delivery system using the FLITE computational fluid dynamics suite.'
  • 2012 - 'Development of a program to compare CFD simulation data with experimental results as a CFD model validation tool for Bloodhound SSC'
  • 2011 - 'Molecular Gas Dynamics Modeling of High Knudsen Number Flows'
  • 2010 - 'Mesh movement via radial basis functions'
  • 2010 - 'Automatic optimisation of tghe bloodhound SSC air intake duct'

Public Engagement in Engineering

Dr Evans is heavily involved in connecting College of Engineering research with the general public and with schools in particular.  He has developed a schools show that visits schools across the UK throughout the academic year based on communicating the science behind the BLOODHOUND SSC Land Speed Record attempt.  His team also delivers workshops in which school pupils design, build and test their own rocket propelled cars.

Demonstration

Dr Evans demonstrating supersonic flow in the style of Indiana Jones on a school visit.

School Show

Pupils getting involved in a BLOODHOUND Schools Show

Rocket Car

Test firing of rocket car designed and built by pupils from Bishopston Comprehensive School, Swansea.

For more information on any of these activities please email bloodhoundforschools@swansea.ac.uk

Invited talks

Dr Evans also regularly gives public talks and lectures about his research.  He has been invited to speak at Cheltenham Science Festival on topics ranging from Land Speed Record racing to fuel efficient flying, Cardiff Science Festival and British Science Association events amongst many others.  If you would like to contact Dr Evans about speaking engagements please email him directly at b.j.evans@swansea.ac.uk or contact him on Twitter @DrBenEvans

Aerodoodle

Dr Evans and his team have partnered with engineers based at M.I.T. in the USA to develop a web-based interactive CFD solver called aerodoodle.  This is primarily an education tool to help people understand the capabilities of CFD solvers in a fun and interactive environment on the web.

Aerodoodle

Simulation of the flow around a simple shape using aerodoodle.swan.ac.uk 

Additional information

Awards

2014  TATA Steel Award for Outstanding Impact in Commerce and Industry

Improved Aerodynamic Design Process for the Aerospace Industry through the Application of Unstructured Mesh Technology

Swansea University Impact Awards

 

 

2006 Mike Crisfield Prize in Computational Mechanics at the Association of Computational Mechanics in Engineering conference

Grants

2013        Fujitsu PhD Scholarship

               Computational aerodynamic design optimisation for complex geometries

               Value: £55.5K

 

2013        4 x BLOODHOUND Education Programme Public Engagement small grants

               Application of Additive Layer Manufacturing (ALM) to the BLOODHOUND SSC

               Numerical modelling in MATLAB for BLOODHOUND SSC performance predictions

               Computational Fluid Dynamics in the design of BLOODHOUND SSC

               Schools-based STEM engagement based on BLOODHOUND SSC

               Total value: £20K

               

2012         Ingenious public engagement grant - Royal Academy of Engineering
 
                STEM schools-based public engagement based on the BLOODHOUND SSC
 
                Value: £21.76K
 

2012       Pathways to Impact Grant, Swansea University
 
              Value: £21K        

 

2010       Swansea Academy of Learning and Teaching grant
 
               Enhancing undergraduate teaching using social media: Teach by Twitter
 
               Value: £2.2K

Work History

2011 - present: Lecturer in Aerospace Engineering at College of Engineering, Swansea University
 
2007 - present: Engineering Design Team for the BLOODHOUND Supersonic Car
 
2007 - 2011: Senior Research Assistanct at Civil and Computational Engineering Centre, Swansea University
 
2004 - 2008: PhD in Computational Fluid Dynamics at Civil and Computational Engineering Centre, Swansea University
 
2000 - 2004: MEng in Aerospace and Aerothermal Engineering at Jesus College, Cambridge University

Selected Invited Lectures

Mar 2014        Basque Center for Applied Mathematical Modelling
                         Turbomachinery and Aerodynamic Shape Optimisation Workshop

                          The use of CFD in the design of a supersonic car

                          Bilbao, Spain


Sept 2013     M.I.T. Department of Civil & Environmental Engineering

                     Discontinuous Taylor-Galerkin FE Approach for Solution of the Boltzmann-BGK Equation

                      Boston, USA 

 

Jan 2013        British Science Association - Science London Lecture

                      The 1,000 mph engineering adventure, BLOODHOUND SSC

                      London


Sept 2012      Rolls Royce 10th Anniversary ADOS Conference

                     Design optimisation using computational fluid dynamics applied to a supersonic vehicle

                     Rolls-Royce, Derby        

 

May 2011       Oxford University Engineering Society

                       Designing a 1,000mph car, BLOODHOUND SSC: an engineering adventure

                       Oxford

 

 Mar 2011       Institute of Mathematics Invited Lecture

                       Numerical Modelling and BLOODHOUND SSC

                     London

 Sept 2010      MathWorks – MATLAB Virtual Conference 2010

                       Inspiring Undergraduate Students to use MATLAB

                     Online virtual conference

 

 June 2010      Cheltenham Science Festival 2010

                       Fuel Efficient Flying

                     Cheltenham

 

 Apr 2010        Intel HPC Symposium 2010 – Keynote Speaker

                       The state of the art of HPC in CFD with application to BLOODHOUND SSC

                     Paris    

 

Nov 2009       Cambridge Engineering Society Lecture

                       The use of CFD in the design of BLOODHOUND SSC

                     Trinity College, Cambridge

 

 Nov 2009       World Motorsport Symposium

                       Designing a supersonic car

                     Oxford 

 

 June 2009      Cheltenham Science Festival   2009

                       How computational modelling is changing the modern world

                       Cheltenham

 

Mar 2009        Mexican Automotive Association Congress Keynote Lecture

                      BLOODHOUND SSC – the adventure begins  

                      Chihuahua, Mexico                                                                    

 

Feb 2009         Singapore Institute of High Performance Computing invited lecture

                       The use of CFD in the design of BLOODHOUND SSC   

                         Singapore