Imperial College London


Faculty of EngineeringDepartment of Mechanical Engineering

Associate Dean Industry Partnerships,Prof of Turbomachinery



+44 (0)20 7594 7241r.botas Website




611City and Guilds BuildingSouth Kensington Campus





Ricardo has an MEng (Hons) Degree in Aeronautical Engineering from Imperial College London. He obtained a DPhil in the Rolls Royce University Technology Center at the University of Oxford University in 1993 with a thesis entitled Annular Cascade Aerodynamics and Heat Transfer.

He has developed the area of unsteady flow aerodynamics of small turbines, with particular application to the turbocharger industry. The contributions to this area centre on the application of unsteady fluid mechanics, instrumentation development and computational methods. The work has attracted support not only from Government agencies but also from industry. His group has become a recognised centre of turbocharger turbine aerodynamics, and more particularly in the application experimental methods and one dimensional calculation procedures.

In 2010 and 2009 he was awarded the best paper award by the Turbomachinery Committee of ASME and in 2011 has been given the Dugald Clerk Prize by the Institution of Mechanical Engineers (UK) for contributions to internal combustion engines.  He is a Visiting Professor in the University Teknologi of Malaysia. He has published extensively in journals and peer reviewed conferences. He is Associate Editor of the Journal of Turbomachinery (ASME) and the Journal of Mechanical Engineering Science (IMechE).

He is currently the Theme Leader for Hybrid and Electric Vehicles of the Energy Futures Lab at Imperial College.

He is the head of the Thermofluids Division

Selected Publications

Journal Articles

Romagnoli A, Copeland CD, Martinez-Botas R, et al., 2013, Comparison Between the Steady Performance of Double-Entry and Twin-Entry Turbocharger Turbines, Journal of Turbomachinery - Transactions of the ASME, Vol:135, ISSN:0889-504X

Rajoo S, Romagnoli A, Martinez-Botas RF, 2012, Unsteady performance analysis of a twin-entry variable geometry turbocharger turbine, Energy, Vol:38, Pages:176-189

Copeland C, Martinez-Botas RF, Seiler M, 2012, Unsteady performance of a twin entry turbocharger turbine with a comparison to steady flow conditions, Jounal of Turbomachinery Trasactions of Asme, Vol:134, Pages:021022-1-021022-11

Romagnoli A, Martinez-Botas RF, 2012, Heat transfer analysis in a turbocharger turbine: An experimental and computational evaluation, Applied Thermal Engineering, Vol:38, Pages:58-77

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