Flow inside electronic systems, passenger cabins, clean rooms, operation theatres and other ventilated enclosed spaces are characterized by three-dimensionality and turbulence.  Good indoor air quality and thermal comfort depend on air flow pattern, geometrical configuration, locations of supply and exhaust ports, internal partitions etc. These flows are generally studied by considering flow through rectangular enclosures with partition. In this talk the first half deals with the experimental study of three-dimensional flow through an enclosure with central partition. Measurements with five hole probe and flow visualization study with smoke wire technique are described. In the second half the complex unsteady flow is computed using various models of turbulence. It is found that the SST k-omega model is able to capture the experimentally observed features of the flow like periodical shifting of vortices behind the partition and the exit of flow with swirl.

 

简历：

Prof. E.G. Tulapurkara  received his Ph. D (Aero Engg.) from IIT Madras, India. He was chairman, Dept. of Aerospace Engg. at IIT Madras from 1995-1998 and was  Principal Coordinator, CFD Centre, IIT Madras from 1998-2005. He is Fellow of the Aeronautical Society of India and Associate Fellow of the American Institute of Aeronautics and Astronautics. He was President of the National Society of Fluid Mechanics and Fluid Power during 2004-2006. He has won many awards including “Excellence in Aerospace Education Award for 2004” of the Aeronautical Society of India.

His research interests include measurement and computation of turbulent flows. Currently he is engaged in preparing lecture materials on Aerospace Engineering subjects under the National Program on Technology Enhanced Learning (NPTEL) of Government of India. He has uploaded courses on Flight Dynamics - I, Flight Dynamics - II, Airplane Design (Aerodynamic) and Introduction to Turbulent flows and their predictions.