Cross-Flow Mass Transfer in a Thin Domain
Application ID: 102931
This application shows how mass transfer out from a thin 3D domain can be approximated using a 2D component with the domain feature Out-of-Plane Flux. This feature is useful when the concentration gradient in the out-of-plane direction (along the thickness) is small, and decreasing the computational time is important. In this example, the Transport of Concentrated Species and Laminar Flow physics interfaces are used to solve for the mass transfer and fluid flow. The Reacting Flow multiphysics coupling feature is used to couple the physical properties. The out-of-plane thickness, which is constant throughout the domain, is varied from 1 mm to 5 mm. As will be shown, by approximating the thin 3D component with a corresponding 2D component, the solution time decreases without a significant decrease in accuracy.
This model example illustrates applications of this type that would nominally be built using the following products:
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
- COMSOL Multiphysics® and
- either the CFD Module, or Microfluidics Module and
- either the Battery Design Module, CFD Module, Chemical Reaction Engineering Module, or Fuel Cell & Electrolyzer Module
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Specification Chart and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.