On the temporal and spatial fourth‐order finite volume velocity de‐averaging for unsteady incompressible flows simulation

2007 ◽  
Vol 24 (8) ◽  
pp. 738-752
Author(s):  
J.M.F. Trindade ◽  
J.C.F. Pereira
Keyword(s):  
Finite Volume ◽  
Fourth Order ◽  
Incompressible Flows ◽  
Volume Velocity ◽  
Temporal And Spatial

scholarly journals An Unstructured Finite Volume Method for Incompressible Flows With Complex Immersed Boundaries

2009 ◽  
Author(s):  
Lin Sun ◽  
Sanjay R. Mathur ◽  
Jayathi Y. Murthy
Keyword(s):  
Finite Volume Method ◽  
Finite Volume ◽  
Incompressible Flows ◽  
Simple Algorithm ◽  
Flow Region ◽  
Solid Material ◽  
The Body ◽  
Immersed Boundary ◽  
Material Points ◽  
Volume Method

A numerical method is developed for solving the 3D, unsteady, incompressible flows with immersed moving solids of arbitrary geometrical complexity. A co-located (non-staggered) finite volume method is employed to solve the Navier-Stokes governing equations for flow region using arbitrary convex polyhedral meshes. The solid region is represented by a set of material points with known position and velocity. Faces in the flow region located in the immediate vicinity of the solid body are marked as immersed boundary (IB) faces. At every instant in time, the influence of the body on the flow is accounted for by reconstructing implicitly the velocity the IB faces from a stencil of fluid cells and solid material points. Specific numerical issues related to the non-staggered formulation are addressed, including the specification of face mass fluxes, and corrections to the continuity equation to ensure overall mass balance. Incorporation of this immersed boundary technique within the framework of the SIMPLE algorithm is described. Canonical test cases of laminar flow around stationary and moving spheres and cylinders are used to verify the implementation. Mesh convergence tests are carried out. The simulation results are shown to agree well with experiments for the case of micro-cantilevers vibrating in a viscous fluid.

scholarly journals Fourth-order accurate finite-volume CWENO scheme for astrophysical MHD problems

2018 ◽  
Vol 482 (1) ◽  
pp. 416-437 ◽  
Author(s):  
Prabal Singh Verma ◽  
Jean-Mathieu Teissier ◽  
Oliver Henze ◽  
Wolf-Christian Müller
Keyword(s):  
Finite Volume ◽  
Fourth Order
Sign in / Sign up

Export Citation Format

Share Document