Parametric reduced order modeling-based discrete velocity method for simulation of steady rarefied flows

• Published in: Journal of computational physics Vol. 430; p. 110037
• Main Authors: Yang, L.M., Zhao, X., Shu, C., Du, Y.J.
• Format: Journal Article
• Language: English
• Published: Cambridge Elsevier Inc 01.04.2021; Elsevier Science Ltd
• Subjects: Boltzmann transport equation; Cavity flow; Computational efficiency; Computational physics; Computing time; Discrete velocity method; Grassmann manifold; Interpolation; Manifolds (mathematics); Mathematical models; Model reduction; Parameters; Parametric reduced order modeling; Reduced discrete velocity space; Reduced order models; Velocity; Reduced discrete velocity space; Discrete velocity method; Parametric reduced order modeling; Grassmann manifold

•A parametric reduced order modeling-based discrete velocity method is developed for simulation of steady rarefied flows.•The reduced-order basis for the target parameter value is constructed from the pre-computed bases by interpolation method.•The reduced discrete velocity space and its connection...