Genick Bar-Meir (Meyerson), Research Associate
E.R.G. Eckert, Faculty Collaborator
Amy Fleischer, Graduate Student Researcher
Bumsoo Han, Graduate Student Researcher
Sangjo Han, Graduate Student Researcher
Peitong Jin, Graduate Student Researcher
Yuli Kornblum, Adjunct Faculty Collaborator
Steven J. Olson, Graduate Student Researcher
Arvind S. Pachhapur, Graduate Student Researcher
Surachai Sanitjai, Graduate Student Researcher
Vinod Srinivasan, Graduate Student Researcher
Larry Stone, Graduate Student Researcher
Prasad S.B. Terala, Graduate Student Researcher
99/40 |
"The Mathematical Theory of the pQ2 Diagram," G. Bar-Meir and N. Brauner, University of Minnesota Supercomputing Institute Research Report UMSI 99/40, March 1999. |
99/71 |
"Instantaneous Energy Separation in Shear Layer," B. Han and R.J. Goldstein, in Proceedings of the 17th Symposium on Energy Engineering Sciences, May 13-14, 1999, Argonne, Illinois, p. 66. |
99/156 |
"Effects of Tip Clearance and Rotation on Three Dimensionsl Flow Fields in Turbine Cascades," B. Han and R.J. Goldstein, in Prodeedings of Symposium on Energy Engineering in the 21st Century, (Hong Kong, 2000), p. 206. |
Fluids in motion separate spontaneously into regions with higher and lower total temperature. This separation, which is refered to as "energy separation," can be observed in various types of flows such as shear flows, free, and impinging jets. However, the mechanisms of energy separation have not been understood clearly, especially the instantaneous mechanism of energy separation. In this work, instantaneous flow and total temperature field within shear and jet flows are being numerically simulated. As the results, instantaneous velocity, pressure, and temperature fluctuations, can be obtained. These results are providing useful information for understanding the mechanism of energy separation.
These researchers have performed the numerical calculations. The primary results showed good agreement with experimental results. For further research, flow parameters such as fluid velocity will be increased.
Simulation of tip leakage flow in a gas turbine is also carried out. The tip leakage flow through the clearance between the tip of a rotating blade and the stationary shroud in a gas turbine can increase the aerodynamic losses and enhance the heat transfer process and thermal load on the blade. The present work is modeling this complicated tip leakage flow and its interaction with secondary flows by using a commercial software tascflow. The results from simulation are now being compared with experimental data.
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