Fluid Machinery Group - How we are governed

Fluid Machinery Group Committee

Fluid Machinery Group is governed by a Committee which sets the strategic direction of the Group.

Dr Martin Yates - Chair

Martin Yates is the Rolls-Royce Associate Fellow for Fuel System Design and Integration and has nearly 30 years’ experience in the aerospace industry.  During this time he has been responsible for the conceptual and detail design of centrifugal and positive displacement fuel pumps for aero engines used on a range of fixed and rotary wing aircraft.

In his current role he is responsible for setting the strategy for future gas turbine fuel systems.  He is a member of the BSI committee MCE/123 - Plain Bearings.  He teaches and is a member of the industrial liaison board for MSc courses at Cranfield University. 

Simon Whatley - Immediate Past Chair

Principal Mechanical Engineer in Thames Water

Simon is responsible for mechanical strategy and standards in Thames Water.  He sits in the Operations Directorate and is also responsible for challenging assumptions in the operation and maintenance of major asset groups like pumping stations, aeration and preliminary treatment. 

Simon also sits on the Pump Centre Council that is a forum for sharing knowledge in equipment used in the water and power industries, as well as preparing the Water Industry Mechanical and Electrical Standards (WIMES), as a common platform for the industry. 

Simon Whatley took over the chair of the Fluid Machinery Group in 2012 and also represents the Group at the IMechE Council meetings.  


Robert Brown - Past Chair

Robert  Brown has more than 40 years’ experience in the pump industry (Engineering Design) having worked with Weir Pumps and Sulzer.  He is General Manager, Engineering within the Customer Support Services Dept of Sulzer Pumps. Involved in engineering issues related to high power pumps & ancillary equipment for the power, oil & gas and water industries

Robert is currently responsible for Sulzer’s UK Aftermarket Engineering group, involved in the following areas:

  • Modernisation & Rerating of existing pumping equipment
  • Troubleshooting & Failure investigations

Professor George A Aggidis

Professor George A Aggidis Professor of Energy Engineering at Lancaster University, UK, and Director of Lancaster University Renewable Energy Group & Fluid Machinery Group.

George's previous career includes 25 years' industrial and academic experience, of which nine years were spent abroad.

George started his engineering career with Mather & Platt Ltd, Manchester, UK, followed by appointments both in the UK and abroad. His final position in industry was Director and Engineering Development Manager for the Fluid Machinery, and Hydropower UK company, Gilbert Gilkes & Gordon Ltd.

He has over 150 research papers, designs, developments and 12 patent contributions in the field of fluid machinery and renewable energy, developed turbines for hydro power generation projects and has physical research prototypes of fluid machinery operating successfully worldwide.

He has a strong focus on engineering science applied to industry-led requirements in renewable energy and fluid machinery. His main research area is in computational and experimental modelling, control and the economics of novel fluid machinery applied to energy and renewables, including wave, tidal and hydro power.

Harald Carrick


After a long and varied career in mechanical engineering in the chemical industry, Harald now provide consultancy on machinery through his own company, Process Industry Machinery Expertise Ltd. where he mainly concentrates on large single stream compressor trains.

His areas of expertise include failure investigation, configuration and performance optimisation, machine specification and selection, design verification and approval, maintenance strategy, and reliability improvement including failure mode & effect analysis.

His interests include aero-thermodynamic performance, rotor-dynamics & vibration, tribology (including bearings & seals), failure analysis, fatigue and structural integrity. I run the Compressor and Fans workshop for the Fluid Machinery Group.


Bill Cory

Ciaran Heaney

Gillian Kerr

Turbo Machinery Specialist, INVISTA Performance Technologies

Gillian has responsibility for large machine applications from initial process design through to commissioning and on-going support of operations. Over the past twenty years she has worked with many engineering contract organisations to deliver safe, well-engineered applications for clients around the world.

Mellish Kett

 In-service Testing Programme Engineer, EDF Energy for Sizewell B Nuclear Power Station

Mellish is responsible for managing the testing programme of all safety significant pumps and valves. This covers over 40 pumps and 700 valves in all and is a unique role in the UK.

His previous role was with Severn Trent Water as the Rotodynamic Standards Manager, responsible for technical advice regarding pumps and blowers across the business, including clean and waste water.

Professor Ahmed Kovacevic

Howden Chair in Engineering Design and Compressor Technology at City, University of London. 

Ahmed's main objective is integration of design excellence in academia and industry which he does through research, teaching and collaborating with industry in numerical modelling, analysis and design of positive displacement screw machines, compressors, expanders and pumps.

Prof Kovacevic chairs the world renown Conference on Compressors and their Systems organised at City, University of London and supported by ImechE. He is the director of the Centre for Compressor Technology at City, University of London, has written six books, hundred and fifty referenced journal and conference papers, holds rights to several patents and has received nine awards for his papers and work.


John Middleton

David Mitchell

Tom Pendrey

Ivor Rhodes

Alister Simpson

Alister Simpson has a background in radial turbomachinery analysis and design, having previously completed a PhD at Queen’s University Belfast in radial turbine aerodynamics, followed by further postdoctoral research in the design optimisation of radial turbine and compressor stages.  Currently working for Wilde Analysis Ltd. as a senior engineering consultant, where he continues to work on rotating equipment projects in addition to applying computer aided engineering solutions to a wide range of applications for clients in the nuclear, aerospace and process industries.  Alister’s main interests and involvement are in the following areas:

  • Radial turbomachinery
  • Computational fluid dynamics
  • Finite element analysis
  • Design optimisation
  • Metal forming and advanced materials modelling 

Pharic Smith

Senior Rotating Equipment Specialist with Weir Group

Pharic provides maintenance solutions on  rotating equipment across the power and oil industries.

He is an experienced Pump Design Engineer with expertise in design, qualification and condition monitoring of critical pump systems in the international nuclear power industry.

Pharic was previously Engineering Manager for Clydeunion's Nuclear Power Business Unit for five years. 


Ken Tacon

Get in touch

Have a question or would like to get involved?

Contact our Governance and Engagement Team:

Join the IMechE conversation

Facebook LogoTwitter LogoLinkedIn LogoInstagram LogoYouTube Logo

Update your email preferences

Sign up to newsletters

Log in to My Account to update your preferences.