Porous Jump in a Perforated Plate CFD Simulation

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In this project, a Porous Jump, Perforated Plate has been simulated and the results of this simulation have been investigated.

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editable geometry and mesh allows users to create and modify geometry and mesh to define the computational domain for simulations.
The case and data files in ANSYS Fluent store the simulation setup and results, respectively, for analysis and post-processing.
Geometry, Mesh, and CFD Simulation methodologygy explanation, result analysis and conclusion
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Porous Jump in a Perforated Plate CFD Simulation, Ansys Fluent Training

Perforated plates have patterns of holes, slots, or decorative shapes. They have a wide area of usage in industrial applications, such as filters, silencers, radiator grilles, ventilation, or separator plates. Porous jump conditions are used to model a thin “membrane” with known velocity (pressure-drop) characteristics. Examples of uses for the porous jump condition include modeling pressure drops through screens and filters and modeling radiators when you are not concerned with heat transfer. Perforated louvers are generally used indoors to permit air movement from one area to another. Perforated louvers are generally used indoors to permit air movement from one area to another.

In this project, We used the Ansys Fluent software to simulate the Porous jump, perforated plated louver. The inlet and outlet boundary conditions are velocity inlet and pressure outlet, respectively. The velocity magnitude is 1.5 meters per second. We have introduced a series of fluid flows into a rectangular cube duct and created a porous series to study the flow behavior and heat transfer. The dimensions of this cube are 1*1*10 cubic meters.

Geometry & Mesh

The 3-D geometry of the present model is generated using Design Modeler software.

Porous Jump

The meshing of the present model has been done using Ansys Meshing software. The mesh type is structured in all of the computational domains, and the element number is equal to 85760.

Porous Jump

Porous Jump CFD Simulation

To simulate the present model, we consider several assumptions:

  • The solver is pressure-based.
  • The current simulation is steady.
  • We ignored the gravity effect.

Here is a summary of the steps for defining the problem and its solution in the following table:


Viscous model





Material Properties






















 Solution Methods
Pressure-velocity coupling  


Spatial discretization pressure Standard
momentum first-order upwind





Volume fraction


Geo reconstruct



Turbulent kinetic energy First-order upwind



Turbulent dissipation rate


First-order upwind
Initialization method Standard (computed from inlet)
Run calculation
Number of time steps 400

In this simulation, two-dimensional contours related to vectors, velocity, pressure, and contour are fluent and CFD-post software.

Velocity vectors show how the flow is aligned through the perforated plate.

Porous Jump

Piping systems often include numerous fittings such as bends (elbows), valves, tees,  enlargements and contractions, and many others. Fluids passing through such fittings inevitably emerge as maldistributed flows, which may be undesirable. Consequently,  there is a clear need to incorporate fixtures in pipelines to improve flow maldistribution.  Perforated plates are a frequently used means of flow homogenization in addition to other flow control applications.


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