Department of Mathematics The Florida State University

This Week in Mathematics

23 - 27 October 1995




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This document is maintained by Melissa Elaine Smith / smith@math.fsu.edu
Last modified: 20 October 1995











































































Barber Abstract:

The role of turbulent mixing process in United Technologies Corporation aerospace and commercial products will be discussed. The initial focus will be on the physical problem; presenting numerous examples of subcomponents problems controlled by disparate physical mechanisms, including compressibility, swirl, buoyancy, etc. Methods for interpreting turbulent mixing processes in experimental and modeling turbulent mixing processes in CFD data will then be presented.

In particular, techniques have been developed for assessing the degree of mixedness in nonintrusive imaging experimental data. A statistically-based procedure, called empirical eigenfuctions, using proper orthogonal decomposition (Karhunen-Loeve expansion) has been used to characterize ensembles of data having high degrees of structural organization (flow turbulence). Applications and assessments of the technique to a variety of jet mixing flows will be demonstrated.

Analytical techniques for simulating turbulent mixing processes will also be discussed. Turbulence closure methods based on extensions of the conventional k,e method, i.e. the Renormalization Group (RNG) k,e method and Very Large Eddy Simulation (VLES) method will be presented, with examples of each demonstrated.


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Graduate Seminar: Coming Attractions

October 30
Kim Ruane receiving input for evaluation of FSU Mathematics program(s)
November 6
Ivo Dinov
November 20
Mickey Boyd


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Analysis Seminar: Coming Attractions

October 31
Dan Oberlin, How Smooth Can a Singular Function Be?


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Algebra Seminar: Coming Attractions

October 31
Sylvia Calcaño, A Result concerning Finite-Dimensional Comodules
Upcoming
Yangang Li
Guang Fu


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Geometry Seminar: Coming Attractions


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Knot Theory Seminar: Coming Attractions


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Complex Analysis Seminar: Coming Attractions

Jack Quine


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Applied Seminar: Coming Attractions

November 2
Paul Roberts, UCLA
November 9
Zonghui Duan,
November 16
Eutiquio Young, A Method for Solving a Mixed Problem for the Telegraph Equation


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Topology Seminar: Coming Attractions


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Scheduled Colloquia Speakers - Fall 1995

November 3
Dan Zelinsky, Northwestern University
November 10
Veteran's Day, No Colloquium
November 17
Tim Havel, Harvard Medical School
November 24
Thanksgiving Weekend, No Colloquium
December 1
Dick Askey, University of Wisconsin
December 8
James C. Turner, Florida A & M University


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Scientific Computing Seminar: Coming Attractions

November 3
Konstantin Kurbatskii, Treatment of Sharp Corners Using a High-Order Finite Difference Scheme
November 17
Hao Shen, Numerical Simulation of the Corner Flow at a Nozzle Exit
December 1
Michel Golebiowski, Turbulent Mixing Noise


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