Wed, Dec 08, 2010 @ 03:30 PM - 04:30 PM
Aerospace and Mechanical Engineering
Conferences, Lectures, & Seminars
Speaker: Herman Clercx, Professor, Technische Universiteit Eindhoven
Talk Title: Turbulent Rotating Convection
Abstract: Rayleigh-BÃ©nard convection is a classical problem in which a fluid layer enclosed between two parallel horizontal walls is heated from below and cooled at the top. In a rotating frame of reference the dynamics can change considerably through the fundamental involvement of a combination of buoyancy and Coriolis forces. The rotating Rayleigh-BÃ©nard (RRB) setting is important for many applications, e.g., in engineering and climate modeling.
Direct numerical simulation (DNS) is used to calculate the heat transfer, flow structuring and small-scale turbulent properties at systematically varied rotation rates. The DNS code solves the incompressible Navier-Stokes equations in a cylinder in a rotating frame of reference, coupled to the heat equation within the Boussinesq approximation. The results from the DNS will be compared to data from SPIV measurements in a water-filled cylindrical convection cell.
In particular, the fate of the Large Scale Circulation, present in non-rotating RB convection, and enhanced heat transfer under influence of increasing rotation rate will be discussed in this talk.
Host: Dr. G. Spedding
More Info: http://ame-www.usc.edu/seminars/index.shtml#upcoming
Audiences: Everyone Is Invited
Contact: April Mundy