Results 161 to 170 of about 3,846 (183)

Generalized Polynomial Chaos for Non-intrusive Uncertainty Quantification in Computational Fluid Dynamics

2018
This chapter is concerned with the construction of polynomial surrogates of complex configurations arising in computational fluid dynamics for the purpose of propagating uncertainties pertaining to geometrical and/or operational parameters. Generalized homogeneous chaos expansions are considered and different techniques for the non-intrusive ...
Vincent Couaillier, Éric Savin
openaire   +1 more source

ON PHYSICALLY CONSTRAINED NON-INTRUSIVE POLYNOMIAL CHAOS EXPANSION

Proceedings of the 5th International Conference on Uncertainty Quantification in Computational Sciences and Engineering (UNCECOMP 2019), 2023
Lukáš Novák, Himanshu Sharma, Michael D. Shields   +2 more
openaire   +1 more source

Stochastic response surfaces based on non-intrusive polynomial chaos for uncertainty quantification

International Journal of Mathematical Modelling and Numerical Optimisation, 2012
This paper gives an overview of computationally efficient stochastic response surface techniques based on non-intrusive polynomial chaos (NIPC) for uncertainty quantification in numerical models. The results of uncertainty analysis can be used in robust and reliability-based design and optimisation studies as well as the assessment of the accuracy of ...
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Uncertainty Analysis for Parametric Roll Using Non-intrusive Polynomial Chaos

2011
In this paper, uncertainty analysis is carried out on both a simple parametric roll model which can be modeled as a Mathieu equation and a 1.5 degree-of-freedom parametric roll model in regular seas. For both cases, the uncertainty is brought into the system due to the error in predicting the damping coefficients.
Wu W., BULIAN, GABRIELE, McCue L.
openaire   +1 more source

Uncertainty Quantification of Contrail Climate Impacts using Non-Intrusive Polynomial Chaos

Contrails are currently estimated to be one of the largest contributors to aviation climate forcing, with a cumulative effect roughly equivalent to that of the CO2 emitted by aviation.[3] Contrail properties are impacted by chemical and thermodynamic conditions in the exhaust and the meteorological environment.
China Hagström, Sebastian Eastham, Ian Waitz, Steven Barrett   +3 more
openaire   +1 more source

Non-Intrusive Polynomial Chaos Expansion for Uncertainty Quantification in Specific Absorption Rate Calculations

2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI)
Specific absorption rate (SAR) is the metric applied for evaluating human exposure to electromagnetic fields, particularly in the context of wireless communication technologies. The non-intrusive polynomial chaos (NIPC) expansion method is proposed as an efficient solution to systematically investigate and quantify uncertainties associated with ...
Zhang, Yiwen, Monebhurrun, Vikass
openaire   +2 more sources

Non-intrusive polynomial chaos based mechanism reliability sensitivity analysis

2014 Prognostics and System Health Management Conference (PHM-2014 Hunan), 2014
Shaohua Du, Jianbin Guo, Zitan Zhao, Shengkui Zeng   +3 more
openaire   +1 more source

Multifidelity, Multidisciplinary Uncertainty Quantification with Non-Intrusive Polynomial Chaos

58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017
Thomas K. West, Clyde Gumbert
openaire   +1 more source

Non-intrusive framework of reduced-order modeling based on proper orthogonal decomposition and polynomial chaos expansion

Journal of Computational and Applied Mathematics, 2021
Xiang Sun, Xiaomin Pan, Jung-il Choi
exaly  

Multifidelity Uncertainty Quantification Using Non-Intrusive Polynomial Chaos and Stochastic Collocation

53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference<BR>20th AIAA/ASME/AHS Adaptive Structures Conference<BR>14th AIAA, 2012
Leo Wai-Tsun Ng, Michael Eldred
openaire   +1 more source