Fluid Configuration

Introduction

Fluids are liquids and gases that flow when subject to an applied shear stress. M-Star CFD can handle both Newtonian and non-Newtonian fluid rheology. The available fluid configurations, along with the relevant simulation parameters, are described in the fluid configurations sections.

The default fluid configuration in M-Star is Single Phase.

For single-phase fluids, momentum transport is governed by the fluid density and viscosity. For multi-phase systems, the surface tension must also be defined to describe dynamics at the interface between two phases. Laminar and transitional flows are typically modeled via direct numerical simulation (DNS). Turbulent fluid flows are modeled using large eddy simulation (LES) or implicit large eddy simulation (ILES). Additional theoretical details related to the LES model are provided in the Theory and Implementation section.

Property Grid

There is a unique property grid for each fluid configuration. Refer to your selected fluid configuration for the accompanying property grid.

Fluid Model Tool Bar

There is a context-specific toolbar for each fluid configuration. Refer to your selected fluid configuration to see the appropriate tool bar.