UTA Department of Mathematics

Applied Mathematics Seminar

Date/Time/Room: Friday (03/07/2003) at 2:00pm in 304 Pickard Hall

Speaker: George S. Dulikravich, Mechanical and Aerospace Engineering, University of Texas at Arlington

"Multi-Disciplinary Analysis, Inverse Design and Optimization"

Abstract: This lecture will conceptually summarize and briefly present our diverse methods for analysis, inverse design, and constrained optimization. The results to be presented will involve: Simulation of cooling of realistic 3d human head and brain,
1. Simultaneous analysis of transonic flow-field and temperature field inside 3-D cooled blades,
2. Simultaneous analysis of electro-magneto-hydrodynamic flows including solidification,
3. Inverse shape design of 2-D airfoils and 3-D wings using existing flow-field analysis codes,
4. Inverse determination of thermal and elasticity boundary conditions on inaccessible boundaries,
5. Inverse determination of temperature-dependent thermal conductivity of arbitrarily shaped solids,
6. Inverse determination of the number, sizes, shapes, and locations of coolant flow passages,
7. Single-objective constrained optimization of 2-D airfoil cascades using Navier-Stokes solvers,
8. Multi-objective constrained optimization of 2-D airfoil cascades using Navier-Stokes solvers,
9. Optimization of coolant flow passage configurations in internally cooled 3-D blades,
10. Optimization of realistic multi-stage axial turbine hub and shroud shapes for maximum efficiency,
11. Optimization of magnetic field distribution and orientation for suppression of fluid flow separation,
12. Optimization of freezing protocols for preservation of organs for transplant surgery,
13. Semi-stochastic optimization of chemical composition of high temperature steel alloys,
14. Semi-stochastic optimization of thermoelasticity of 3D cooled turbine blades,
15. Optimization of magnetic field boundary conditions for controlled solidification from a melt.

The lecture will include several computer animations.

ABOUT THE LECTURER Prof. Dulikravich (Ph.D., Cornell'79; M.Sc., Minnesota'75; Dipl.-Ing., Belgrade'73) worked as a NRC Associate Fellow at NASA LeRC, a Visiting Scientist at DFVLR-Goettingen, Assistant Professor at University of Texas-Austin(82-86), and Associate Professor at the Pennsylvania State University (86-99). He is the founder and the Editor-in-Chief of the international journal on Inverse Problems in Engineering. Prof. Dulikravich is an Associate Fellow of AIAA and a Fellow of ASME. He is also the organizer, chairman and editor of the first three international conferences on inverse design and optimization (ICIDES) and a co-chairman of the international symposium on inverse problems (ISIP). He has authored over 300 technical publications. Current applications are in the design of transonic and hypersonic flight vehicles and projectiles, cooled gas turbines, optimized cooling of electronic components, aero-thermo-structural design optimization of multi-stage axial turbomachinery, electro-magneto-fluid-dynamics, solidification from a melt controlled by the electro-magnetic fields, magnetically levitated trains and space launch platforms, and optimized freezing protocols for preservation of organs for transplant surgery.