http://repository.iitr.ac.in/handle/123456789/16698| Title: | Analysis of a polynomial chaos-kriging metamodel for uncertainty quantification in aerospace applications |
| Authors: | Weinmeister J. Xie N. Gao X. Prasad A.K. Roy S. |
| Published in: | Proceedings of AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018 |
| Abstract: | Metamodeling can be effective for uncertainty quantification in computational fluid dynamics simulations. In this research, we introduce modifications to our existing metamodel1 that combines a reduced polynomial chaos expansion approach and universal Kriging (RPCK) and evaluate the new metamodel for aerospace applications. Focus is given to determine the impact of optimization functions and autocorrelation functions on the solution accuracy by measuring the errors. Additionally, a new adaptive refinement algorithm is explored and the methodology is presented. Results show the metamodel’s robustness for aerospace engineering applications, including the non-smooth output of separated airflow. © 2018, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved. |
| Citation: | Proceedings of AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018, (2018) |
| URI: | https://doi.org/10.2514/6.2018-0911 http://repository.iitr.ac.in/handle/123456789/16698 |
| Issue Date: | 2018 |
| Publisher: | American Institute of Aeronautics and Astronautics Inc, AIAA |
| Keywords: | Aerospace applications Aviation Computational fluid dynamics Interpolation Structural dynamics Adaptive refinement Autocorrelation functions Computational fluid dynamics simulations Engineering applications Kriging meta models Optimization function Polynomial chaos expansion Uncertainty quantifications Uncertainty analysis |
| ISBN: | 9.78E+12 |
| Author Scopus IDs: | 57194854612 57190859745 56218218900 56723412600 55364099700 |
| Author Affiliations: | Weinmeister, J., Computational Fluid Dynamics and Propulsion Laboratory, Colorado State University, Fort Collins, CO 80523, United States Xie, N., Computational Fluid Dynamics and Propulsion Laboratory, Colorado State University, Fort Collins, CO 80523, United States Gao, X., Computational Fluid Dynamics and Propulsion Laboratory, Colorado State University, Fort Collins, CO 80523, United States Prasad, A.K., High Speed System Simulation Laboratory, Colorado State University, Fort Collins, CO 80523, United States Roy, S., High Speed System Simulation Laboratory, Colorado State University, Fort Collins, CO 80523, United States |
| Appears in Collections: | Conference Publications [ECE] |
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