Research Director

Professor Ricardo F. Martinez-Botas

Ricardo F. Martinez-BotasProfessor in Turbomachinery

Ricardo leads the Turbo Group. He has an MEng (Hons) in Aeronautical Engineering from Imperial College London and obtained a DPhil from St John's College, Oxford University in 1993 with his thesis on “Annular Cascade Aerodynamics and Heat Transfer”.

His main area of research is in aerodynamics and heat transfer of turbomachines. The applications relate to aircraft engines, power generation gas turbines, turbochargers and hybrid vehicles. In heat transfer engineering, a significant contribution has been made to the understanding of cooling components, primarily by means of experimental novel measuring techniques.

In turbocharger aerodynamics, an understanding of the unsteady effects in turbines under realistic engine conditions has been reported. To achieve this, a high speed dynamometer has been developed capable of extending current measuring range of turbochargers.

Research Staff

Dr Aaron W. Costall

Lecturer in ThermofluidsDr Aaron Costall

Aaron holds both MEng and PhD degrees from the Department of Mechanical Engineering at Imperial College London, and is a chartered mechanical engineer. His main interests lie in advanced turbocharger models to enable optimized IC engine performance and fuel consumption over real-life duty cycles, electrically-assisted turbocharging and thermal energy recovery in IC engines.

After completing his PhD, from 2007 Aaron spent five years as a Research Engineer and Senior Research Engineer with Caterpillar Inc., working in the Engine Research division based at Perkins Engines in Peterborough, UK. In 2012 Aaron moved to Mitsubishi Turbocharger and Engine Europe B.V. in the Netherlands, where he was responsible for engine-turbocharger matching process improvement. He returned to Imperial College London as a Research Fellow in 2014, and became Lecturer in Thermofluids in 2017.

Dr Peter J. Newton

Research Associate

Peter graduated from Imperial College with a degree in Mechanical Engineering in 2007. He spent two years working as a structural analyst in the power sector before returning to Imperial College London to undertake a PhD in the Turbocharger Group in 2009. His PhD research was sponsored by ABB Turbosystems and focussed on the effect of unsteady flows on the aerodynamics of a double entry turbine.

Having completed his PhD in 2013 he is now the UTM Research Fellow in the Centre for Low Carbon Transport, based at Imperial College London. His research interests lie in turbine fluid dynamics, waste heat recovery from automotive engines and high speed and hot gas flow measurement.

Mr Harminder Flora

Mr Harminder FloraResearch Officer

Harminder joined the Thermal Power research group in the Department of Mechanical Engineering at Imperial College in 1986 under the leadership of the late Professor Neil Watson, who at the time was performing world-leading research into turbochargers. Since then, as Research Officer he has supported numerous turbocharger and automotive powertrain related research projects, including the development of:

  • The Turbo Group's high-speed eddy-current dynamometer, used for turbocharger turbine aerodynamic research and testing
  • Active Control Turbocharger (ACT) technology
  • TASR, the Transient Air System Rig
  • Cavitation in diesel injector nozzles
  • Validation of simulation models for diesel fuel injection systems
  • Apparatus for the measurement of piston ring lubricant films

Harminder’s departmental duties include leading the teaching of CAD on our MEng Mechanical Engineering undergraduate course, co-supervising numeorus undergraduate Design-Make-Test and Final Year Projects, and providing close technical support to PhD research students and Psotdocs in the Thermofluids Division.

Mr Asanka Munasinghe

Controls & Instrumentation Engineer

Asanka is Controls & Instrumentation Engineer in the Thermofluids Division...

  • Tel: +44 (0)20 7594 7043
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Dr Maria Esperanza Barrera-Medrano

Research Associate

Esperanza is a Research Associate in the Turbo Group...

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Dr Eleni Ioannou

Research Associate

Eleni is a Research Associate in the Turbo Group and a turbomachinery CFD specialist in the Caterpillar Innovation & Research Centre.

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Dr Nitin Garg

Research Associate

Nitin is a Research Associate in the Turbo Group and a CFD optimization specialist in the Caterpillar Innovation & Research Centre.

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Dr Muhammad Izzal Ismail

Research AssociateDr Muhammad Izzal Ismail

After graduating in 2007 from Tokai University, Kanagawa-shi, Japan with a Bachelor of Engineering, Izzal was employed by PROTON, the national car company of Malaysia. With 6 years’ experience in the automotive industry, he joined Imperial College London as a PhD student in November 2013, funded by the Malaysian government and sponsorship agency, MARA.

His primary research focused on developing a turbocharger matching method for one-dimensional engine simulation software that enables better engine efficiency and transient response, by incorporating more representative models for waste-gated turbines and electric turbocharger systems. During his PhD, he also worked on industrial research projects with Mitsubishi Heavy Industries, Ltd. (MHI), including a collaboration with Groupe Renault, the major passenger car manufacturer, and the turbocharger supplier Mitsubishi Turbocharger & Engine Europe B.V.

Izzal completed his PhD in 2017, and is currently working as a Research Associate, again on collaborative industrial research projects with MHI.

Mr Miles Robertson

Research Associate

Miles is a Research Associate in the Turbo Group.

  • Tel: +44 (0)20 7594 xxxx
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Research Students

Academic Visitors

Dr Srithar Rajoo

Srithar Rajoo is Director of the UTM Centre for Low Carbon Transport in cooperation with Imperial College London, a joint research initiative. He is also Senior Lecturer in the Faculty of Mechanical Engineering at the Universiti Teknologi Malaysia (UTM). He obtained his PhD from Imperial College London in 2007 on the subject of unsteady performance of variable geometry mixed flow turbines.