Evaluation of Fluid-Thermal Systems by Dynamic Data Driven Application Systems - Part II

Authors:
D. Knight;Q. Ma;T. Rossman;Y. Jaluria
Affiliations:
Dept of Mechanical and Aerospace Engineering, Rutgers - The State University of New Jersey, New Brunswick, NJ 08903,;Dept of Mechanical and Aerospace Engineering, Rutgers - The State University of New Jersey, New Brunswick, NJ 08903,;Dept of Mechanical and Aerospace Engineering, Rutgers - The State University of New Jersey, New Brunswick, NJ 08903,;Dept of Mechanical and Aerospace Engineering, Rutgers - The State University of New Jersey, New Brunswick, NJ 08903,
Venue:
ICCS '07 Proceedings of the 7th international conference on Computational Science, Part I: ICCS 2007
Year:
2007

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Abstract

A Dynamic Data Driven Application Systems (DDDAS) me-thodology is developed for evaluation of fluid-thermal systems wherein a complete specification of the boundary conditions is not known a prioriand experimental diagnostics are restricted to a limited region of the flowfield. The Closed Loop formulation of DDDAS is used whereby experiment and simulation are synergized in an iterative manner to determine the unknown boundary conditions, thereby enabling a full simulation (and hence, evaluation) of the fluid-thermal system. In this DDDAS methodology, the experiment directs the simulation and vice-versa. The DDDAS methodology is applied to a heated jet injected into a laminar boundary layer where the jet temperature and velocity are not known a priorifor the simulations. The DDDAS methodology accurately determines the unknown jet temperature and velocity.