SCHOOL OF MECHANICAL ENGINEERING SEMINAR Wednesday, May 2, 2012 at 15:00 Wolfson Building of Mechanical Engineering, Room 206

School of Engineering and Materials, Queen Mary University of London

The last two decades have seen an explosion in turbulent flow simulations ranging from low to high speed flows and from environmental to bio-engineering flows. However, Reynolds number, length and energy scaling remain of a challenges as well as complex geometry of moving flexible bodies that can be found in various fluid applications. This talk is divided to three parts. In the first part we will discuss a new approach of coupling low-speed turbulent flow simulation with structural simulation as developed by the QMUL group. This approach has a wide range of applications from green energy and transport to bio-fluids. Free surface and tidal turbine flow studies will be discussed, followed by blood and urine flow computational and experimental studies carried in collaboration with KCL, UCL and Whips Cross University Hospital.

In the second part we will discuss sound production by power plants that present on-going challenges due to length and energy scaling. It will be shown how a combined approach of fluids simulation, sound computation and anechoic chamber measurements can be used to achieve high accuracy prediction for jet noise and assess noise suppression methodology. We will discuss some current noise issues facing the next generation of high speed aviation.

The talk will conclude with proposals for aerodynamic improvement of blades as used for gas turbines and the wind power industry. Examples of flow leakage reduction in gas turbine and drag reduction will be given.

Computational and experimental fluids-structure-sound interaction from environmental to bio-fluids

Dr. Eldad Avital