TY - GEN
T1 - Analysis of a polynomial chaos-kriging metamodel for uncertainty quantification in aerospace applications
AU - Weinmeister, Justin
AU - Xie, Nelson
AU - Gao, Xinfeng
AU - Prasad, Aditi Krishna
AU - Roy, Sourajeet
N1 - Publisher Copyright:
© 2018, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2018
Y1 - 2018
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85141597477&partnerID=8YFLogxK
U2 - 10.2514/6.2018-0911
DO - 10.2514/6.2018-0911
M3 - Conference contribution
AN - SCOPUS:85141597477
SN - 9781624105326
T3 - AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018
BT - AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018
Y2 - 8 January 2018 through 12 January 2018
ER -