A modular regularized variational multiscale proper orthogonal decomposition for incompressible flows
نویسندگان
چکیده
منابع مشابه
Variational Multiscale Methods for incompressible flows
The numerical simulation of incompressible flow governed by the Navier-Stokes equations requires to deal with subgrid phenomena. Particularly in turbulent flows, the scale spectra are notably widened and need to be handled adequately to get a reasonable numerical solution. Separating the complete scale range into subranges enables a different treatment of any of these subranges. In the brevity ...
متن کاملProper Orthogonal Decomposition Closure Models for Fluid Flows: Burgers Equation
This paper puts forth several closure models for the proper orthogonal decomposition (POD) reduced order modeling of fluid flows. These new closure models, together with other standard closure models, are investigated in the numerical simulation of the Burgers equation. This simplified setting represents just the first step in the investigation of the new closure models. It allows a thorough as...
متن کاملProper Orthogonal Decomposition Technique for Transonic Unsteady Aerodynamic Flows
A new method for constructing reduced-order models (ROM) of unsteady small-disturbance ows is presented. The reduced-order models are constructed using basis vectors determined from the proper orthogonal decomposition (POD) of an ensemble of small-disturbance frequency-domain solutions. Each of the individual frequencydomain solutions is computed using an ef cient time-linearized ow solver...
متن کاملVariational Multiscale Large Eddy Simulation of Turbulent Incompressible Flows
The variational multiscale (VMS) method was introduced in [4] as a framework for the development of stabilization techniques, which aim to overcome numerical difficulties encountered when using the standard Galerkin method, the finite element (FE) counterpart of centered finite differences (FD), namley, the compatibility condition between the velocity and pressure FE spaces, which require the u...
متن کاملA Parallel Variational Multiscale Method for Incompressible Flows Based on the Partition of Unity
A parallel variational multiscale method based on the partition of unity is proposed for incompressible flows in this paper. Based on two-grid method, this algorithm localizes the global residual problem of variational multiscale method into a series of local linearized residual problems. To decrease the undesirable effect of the artificial homogeneous Dirichlet boundary condition of local sub-...
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: Computer Methods in Applied Mechanics and Engineering
سال: 2017
ISSN: 0045-7825
DOI: 10.1016/j.cma.2017.07.017