Single Sided Ventilation in Room Considering a Heater, ANSYS Fluent Training

$120.00 Student Discount

The problem simulates the airflow of air inside a room considering a heater and checking the heat transfer inside the room by single-sided ventilation.

Special Offers For Single Product

If you need the Geometry designing and Mesh generation training video for one product, you can choose this option.
If you need expert consultation through the training video, this option gives you 1-hour technical support.
The journal file in ANSYS Fluent is used to record and automate simulations for repeatability and batch processing.
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
The MR CFD certification can be a valuable addition to a student resume, and passing the interactive test can demonstrate a strong understanding of CFD simulation principles and techniques related to this product.


Project Description

The problem simulates the airflow inside a room considering a heater and analyses the heat transfer inside the room using single-sided ventilation by ANSYS Fluent software. Inside the room, an aluminum radiator is used as a heat source with an output energy of 23469 W.m-3. Also, a window is placed on one of the lateral walls for the outlet airflow. The boundary condition of the pressure outlet with the pressure equal to the ambient pressure (atmospheric pressure) and the backflow air temperature equal to the room temperature is used. The purpose of this study is to investigate the airflow behavior in the room.

Geometry & Mesh

The 3-D geometry of the present model is designed using Design Modeler software. The model consists of a room measuring 2.15 m ⨯ 2.16 m ⨯ 3.32 m, with a rectangular cube heater at the bottom of one of its sidewalls. The following figure shows the geometry.

single sided

The meshing of the present model has been done by ANSYS Meshing software. The mesh type is unstructured and the element number is 987087. The following figure shows a view of the mesh.

single sided

Single-Sided Ventilation CFD Simulation

To simulate the present model, several assumptions are considered, which are:

  • The Pressure-Based solver has been performed.
  • Simulation has been performed in both fluid and heat transfer modes.
  • The present model is steady-state.
  • The effect of gravity is 9.81 m.s-2 on the fluid.

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

Viscous model k-epsilon
k-epsilon model realizable
near-wall treatment standard wall function
Boundary conditions 
Outlet Pressure outlet
gauge pressure 0 Pascal
Walls Wall
Wall motion stationary wall
heat flux 0 W.m-2
Solution Methods (single-sided ventilation)
Pressure-velocity coupling   SIMPLE
Spatial discretization pressure second-order
momentum second-order upwind
density second-order upwind
turbulent kinetic energy second-order upwind
turbulent dissipation rate first-order upwind
energy second-order upwind
Initialization (single-sided ventilation)
Initialization method   Standard
gauge pressure 101325 pascal
velocity (x,y,z) 0 m.s-1
temperature 300 K

Single-Sided Result

At the end of the solution process, two-dimensional and three-dimensional contours of pressure, temperature, and velocity, as well as two-dimensional and three-dimensional velocity vectors, are obtained. The two-dimensional contours and vectors are drawn in two sections, XY and YZ so that the contours on the YZ page are drawn in three different sections.


  1. Annabell Balistreri

    Can this simulation be used to optimize the placement of the heater and the ventilation?

    • MR CFD Support

      Absolutely! The results from this simulation can provide valuable insights into the optimal placement of the heater and the ventilation to achieve the desired temperature distribution.

  2. Wilhelmine Bailey

    How does the simulation model the heat transfer in the room?

    • MR CFD Support

      The simulation uses the energy equation to model the heat transfer from the heater and the walls of the room.

  3. Carson McGlynn

    How are the results of the simulation visualized?

    • MR CFD Support

      The results are visualized using contour plots of temperature and velocity, as well as pathlines to show the flow pattern of the air.

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