On decoupled time step/subcycling and iteration strategies for multiphysics problems
نویسندگان
چکیده
منابع مشابه
Preconditioning Strategies For Multiphysics Applications: Some Problems
When modeling chemical processes we are concerned with mathematical models of more and more complexity: it is especially the coupling of equations describing different physical phenomena which adds a new level of complexity to the already present difficulties (3D domains, singular perturbations, heavy nonlinearities). In turn, this gives rise to an intolerable large computation time. In the pre...
متن کاملglobal results on some nonlinear partial differential equations for direct and inverse problems
در این رساله به بررسی رفتار جواب های رده ای از معادلات دیفرانسیل با مشتقات جزیی در دامنه های کراندار می پردازیم . این معادلات به فرم نیم-خطی و غیر خطی برای مسایل مستقیم و معکوس مورد مطالعه قرار می گیرند . به ویژه، تاثیر شرایط مختلف فیزیکی را در مساله، نظیر وجود موانع و منابع، پراکندگی و چسبندگی در معادلات موج و گرما بررسی می کنیم و به دنبال شرایطی می گردیم که متضمن وجود سراسری یا عدم وجود سراسر...
Adaptive Finite Element Methods for Multiphysics Problems Adaptive Finite Element Methods for Multiphysics Problems
In this thesis we develop and evaluate the performance of adaptive finite element methods for multiphysics problems. In particular, we propose a methodology for deriving computable error estimates when solving unidirectionally coupled multiphysics problems using segregated finite element solvers. The error estimates are of a posteriori type and are derived using the standard framework of dual w...
متن کاملA New Inexact Inverse Subspace Iteration for Generalized Eigenvalue Problems
In this paper, we represent an inexact inverse subspace iteration method for computing a few eigenpairs of the generalized eigenvalue problem Ax = Bx [Q. Ye and P. Zhang, Inexact inverse subspace iteration for generalized eigenvalue problems, Linear Algebra and its Application, 434 (2011) 1697-1715 ]. In particular, the linear convergence property of the inverse subspace iteration is preserved.
متن کاملCoupling Requirements for Multiphysics Problems Posed on Two Domains
We consider two hyperbolic systems in first order form of different size posed on two 4 domains. Our ambition is to derive general conditions for when the two systems can and cannot be 5 coupled. 6 The adjoint equations are derived and well-posedness of the primal and dual problems are dis7 cussed. By applying the energy method, interface conditions for the primal and dual problems are 8 derive...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Communications in Numerical Methods in Engineering
سال: 2008
ISSN: 1069-8299
DOI: 10.1002/cnm.1085