VMFL078

VMFL078
Polyhedral Mesh Accuracy

Overview

Reference	Parallel Simulation of 3D Lid-driven Cubic Cavity Flows by Finite Element Method, Jifei Wang and Decheng Wan. Proceedings of the Twenty-first (2011) International Offshore and Polar Engineering Conference, Maui, Hawaii, USA, June 19-24, 2011.
Solver	Ansys Fluent
Physics/Models	Laminar Flow, driven by a moving wall
Input File	`VMFL078_FLUENT.cas`
Project Files	Link to Project Files Download Page

The laminar incompressible flow in 3D driven cavity is solved at Reynolds number = 1000. The study demonstrates accuracy of polyhedral mesh.

Figure 182: Flow Domain

Material Properties	Geometry	Boundary Conditions
Density: 1 kg/m3 Viscosity: 0.001 kg/m-s	A half domain is modeled with height = 1 m, length = 1 m and breadth = 0.5 m using symmetry boundary condition.	Moving boundary condition is at the top of the domain with a velocity= 1 m/s All other walls are stationary

Material Properties

Geometry

Boundary Conditions

Density: 1 kg/m3

Viscosity: 0.001 kg/m-s

A half domain is modeled with height = 1 m, length = 1 m and breadth = 0.5 m using symmetry boundary condition.

Moving boundary condition is at the top of the domain with a velocity= 1 m/s

All other walls are stationary

The flow is steady. Polyhedral mesh of 279894 cells is used to discretize the domain.

Figure 183: Comparison of X-Velocity along the vertical centerline in the symmetry plane