Computational Sciences Seminar/Lecture Series


Parallel Computation for Several Aerospace Applications

Paul Cizmas

Professor, Department of Aerospace Engineering, Texas A&M University

Student Computing Center (SCC): 4.210F
November 21, 2016: 2:30 - 03:30 pm

ABSTRACT

      Numerical simulation of transport phenomena for aerospace applications typically requires large computational times due to various complex interactions, strong nonlinear effects, and diverse spectrum of time scales. Several examples are presented of internal and external flows, in some cases coupled with structural or combustion models. These examples include optimization of multistage turbomachinery cascade flows, aeroelastic responses of wings experiencing limit cycle oscillation and flutter, aerothermoelastic response of structures in hypersonic flow, and in situ reheat in turbine-combustors. Strategies of reducing computational time are presented, including parallelization schemes and reduced-order modeling approaches.


Spearker's Bio

      Dr. Paul Cizmas received his Ph.D. from Duke University and his Dipl. Ing. from the Polytechnic Institute of Bucharest. After working for Westinghouse Science and Technology Center he joined in 1998 the Department of Aerospace Engineering at Texas A&M University. Prof. Cizmas is actively conducting research in propulsion, aeroelasticity, and computational fluid dynamics.
      Prof. Cizmas pioneered the use of the time-linearization method for prediction of stall flutter in turbomachinery. For this contribution he received the ASME Liquid Propulsion 1995 Best Paper Award. Prof. Cizmas was among the first to use parallel processing for numerical simulation of unsteady flows in turbomachinery. For this contribution he received the Westinghouse Science and Technology 1997 Technical Publication Award. For his work on the prediction of aeroacoustic resonance in cavities of hole-pattern stator seals, Prof. Cizmas received the ASME Structures & Dynamics Committee Best Paper Award in 2011.