UFORCE project team
Professor Shuisheng He
University of Sheffield
Shuisheng has a long-standing interest in fundamental research of turbulence in unsteady flows, combining experimental investigations with computational simulations. Detailed measurements of turbulence have been performed with LDA, PIV and hot-films using facilities in Manchester, Delft Hydraulics, Aberdeen and Sheffield. Complementary numerical studies are performed using 'in-house' DNS and RANS computer codes developed and maintained by his group
Professor Alan Edward Vardy
University of Dundee
Alan has studied transient flows in pipe and duct systems for over 30 years. His best known practical applications are in road and rail tunnel aerodynamics, for which his software is used internationally in engineering design offices. Academically, he has specialised in the numerical analysis of 1-D transient flows and, in particular, in the representation of unsteady skin friction. With his long-time colleague, Jim Brown, he developed a widely used method of simulating unsteady skin friction in pipes. He led the unsteady friction Work Package of the EC Thematic Network "Surge-Net" and the EC HydraLab Unsteady Friction consortium using large-scale facilities at Delft Hydraulics.
Professor Tom O'Donoghue
University of Aberdeen
Tom has over 20 years experience in coastal and offshore engineering research. His recent work has focused on oscillatory boundary layer flow and sediment dynamics, centred on experiments conducted in the Aberdeen Oscillatory Flow Tunnel (AOFT). He has studied oscillatory flow ripple and sheet-flow regime conditions and swash hydrodynamics and sediment transport. A key issue in all of this work is the prediction of rough bed shear stress for the wave- or swash-induced unsteady flow conditions.
Dr Dubravka Pokrajac
University of Aberdeen
Dubravka's recent research has focused on turbulent flows over rough beds. She and her co-workers have re-cast the momentum equations for shallow open channel flows over rough beds using the "double averaging methodology", whereby the Navier-Stokes equations are averaged in both time and space. The method is used in the study of the influence of beach roughness and permeability on the hydrodynamics of bore-generated unsteady swash flows. Dubravka is a founder member of an international Double-Averaging Methodology Group to develop the method and promote its applications in environmental fluid mechanics and engineering hydraulics.
Dr Mehdi Seddighi
University of Sheffield
Mehdi's research has focused on DNS of unsteady turbulent flow since the start of his PhD study in November 2007. He has developed a DNS code during his PhD which is currently applied in studying various forms of unsteady flows in a channel with smooth and rough surfaces.
Mr Sam Gorji
University of Sheffield
Sam is a PhD student taking the main responsibility on the design of the new flow loop at University of Sheffield. His PhD study focuses on experimental investigations into turbulence behaviours in unsteady flow over rough surfaces.
Mr Akshat Mathur
University of Sheffield
Akshat's PhD project aims at studying turbulence in a volumetrically controlled unsteady flow.