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CFD Module

CFD Module
HVAC: Flow past a propeller in a duct.

The Computational Fluid Dynamics (CFD) Module is the premier tool in the COMSOL product suite for sophisticated fluid flow simulations. Compressible as well as incompressible flows can be combined with advanced turbulence models and forced and natural convection. An important characteristic of the CFD Module is its capability of precise multiphysics-flow simulations such as conjugate heat transfer with non-isothermal flow, fluid-structure interactions, non-Newtonian flow with viscous heating, and fluids with concentration-dependent viscosity. Porous-media flow user interfaces allow for isotropic or anisotropic media, as well as automatically combined free flow and porous domains. Tools for modeling of stirred vessels with rotating parts are available for both 2D and 3D flows.

The Module’s interfaces for homogeneous two-phase flow include a mixture model for fine particle suspensions and a bubbly flow model for macroscopic gas bubble flow. For interface tracking two-phase flow, formulations are provided using the level-set and phase-field methods.

The tools available in the CFD Module for advanced transport and reacting flow simulations are automatically extended when combined with the Chemical Reaction Engineering Module. For fluid-structure interactions, the Structural Mechanics Module interacts with the CFD Module’s flow models and makes available elastic solid-fluid couplings as well as lubricating flow and elastohydrodynamics.

 

Application Area

  • Conjugate heat transfer
  • Cyclones, filters and separation units
  • Electronic cooling
  • Fans, grills, and pumps
  • Flow around vehicles and structures
  • Flows in pipes, valves, joints, nozzles
  • Fluidized beds and sprays
  • Fluid-structure interaction (FSI)*
  • Gas bubble flow
  • Heat exchangers and cooling flanges
  • Lubrication and elastohydrodynamics
  • Medical/biophysical applications such as flow in blood vessels
  • Mixers and stirred vessels
  • Non-isothermal flow
  • Non-Newtonian flow
  • Polymer flow and viscoelastic flow
  • Porous media flow
  • Sedimentation, emulsions, and suspensions
  • Turbulent flow

* Together with the Structural Mechanics Module or MEMS Module

Models

iMath Asia
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