Description

In this project, the steady airflow over a ventilated air cavity is investigated using ANSYS Fluent software. We perform this CFD project and investigate it by CFD analysis.

The three-dimensional geometry of this project has been produced with Design modeler software and consists of a cavity placed within a rectangular domain.

The meshing of this project has been done with ANSYS Meshing software, and the total number of elements is 803616.

Ventilated Cavity Methodology

In this project, steady airflow over a ventilated air cavity is investigated by ANSYS Fluent software. The simulated cavity has a hole extending in the flow direction all over the cavity length, making the simulation more challenging.

Fluid flow over objects is important since the results are useful in several branches of fluid mechanics, such as aerodynamics. A built-in hole in the cavity geometry enables flow penetration inside the cavity.

It reduces the pressure drop upstream and downstream of the cavity, which decreases the drag force exerted on the cavity by the airflow.

Airflow velocity at the inlet boundary condition is equal to 1.7 m/s. Due to high flow velocity, the K-epsilon turbulence model is chosen for solving fluid flow domain equations.

Ventilated Cavity Conclusion

At the end of the solution process, two-dimensional contours related to pressure, velocity, and streamlines are obtained. As can be seen, the maximum velocity captured in the domain is equal to 2.32 m/s which occurs on the leading edge of the cavity.

Also, using the data extracted from the Fluent, the air mass flow rate at the outlet is equal to 6.747232 kg/s. The drag force for the cube is equal to 0.0001168629 N.