MetStroem Short Course
"Stochastic Approaches to Turbulence Modeling" (co-organized by the DFG Research Group 1447) Cottbus, Germany, June 11-14, 2012
Organizers:
Head: Alan Kerstein (Formerly SANDIA Livermore, USA) and Heiko Schmidt (Brandenburg Technical University, Cottbus, Germany)
Co-ordination: Thomas von Larcher (Freie Universitaet Berlin, Germany, larcher@math.fu-berlin.de)
Administration: Ulrike Eickers and Sarah Jaeger (Freie Universitaet Berlin, Germany, +49-(0)30-838-75415, eickers@math.fu-berlin.de, sjaeg@zedat.fu-berlin.de)
Scope
Coarse-grained time advancement with sub-grid parameterization (Large-Eddy Simulation: LES) is the current state of the art for numerical modeling of turbulent flows for which fully resolved advancement of the exact governing equations (Direct Numerical Simulation: DNS) is unaffordable. Dimension reduction, e.g., 2D DNS, is a useful alternative to the LES cost-reduction strategy. The ultimate step in cost reduction by low-dimensional turbulence simulation is the use of a 1D approach. This requires a model formulation that is phenomenologically inspired rather than directly deduced from the Navier-Stokes equation, while preserving the applicable conservation laws.
The short course will motivate and introduce two related 1D stochastic approaches, the Linear Eddy Model (LEM) and One-Dimensional Turbulence (ODT), with emphasis on the latter. Topics to be addressed include the physical basis of the model representations of turbulent flows, mathematical formulation and algorithmic implementation of the models (including relevant topics in the mathematics of stochastic processes), highlights of applications to date, and the use of these approaches in 3D turbulence simulations.
The assumed background of the participants is working knowledge (at the graduate student level) of the mathematics and physical interpretation of the governing equations of fluid flow and some familiarity with turbulent flows, probability concepts and formalism, and strategies for numerical modeling of turbulence. Upon completion of the short course, participants should be capable of understanding and using available code implementations of the models with the aid of code documentation, and adapting these codes for use in their research. Small-group practical sessions will focus on the development of hands-on skill.
Program: See the attached file for the preliminary daily program.
Venue: Siemens-Halske-Ring 14, D-03046 Cottbus, Germany, http://www.tu-cottbus.de/
Accomodation: Accomodation is self-organized by participants.
Registration: To register, please send an E-Mail including your name and affiliation to the administration (Ulrike Eickers and Sarah Jaeger).
The Deadline for registration is 31 May. Maximum of participants is 25.
Fees: The workshop is free of charge. This also includes Coffee Breaks. Accomodation costs have to be covered by the participants.
In case questions arise, please do not hesitate to contact the organizers under alan.kerstein@gmail.com or schmidth@tu-cottbus.de.
