# Simulation of the heat transfer flow in cooling the airfoil surface by lateral air inlets

Airfoil Features regardless to Aircraft wings have a great importance in engineering and scientific applications in airplanes and ships, helicopters, compressors, turbines, fans, pumps, wind tunnels, hydraulic channels, mills, and many issues and industries. Most of the issues that airfoil deals with are related to the wing of the plane. Another important application is the airfoil in the turbine, and it relates to turbine and jet turbine or fan engines. It should be noted that the turbine’s airfoil calculations are more complicated and more difficult than the wing of the plane due to the size of the case and the more complex shape and behavior.

Surface cooling of airfoils has become one of the most important issues in mechanical engineering as well as aerospace.

In this analysis, it has been attempted to simulate and analyze the heat transfer flow in cooling the airfoil surface by lateral air inlets using Ansys Fluent software.

### Geometry and Mesh

The geometry required for this analysis was generated by Ansys Design Modeler software. The meshing required for this analysis was also generated by Ansys Meshing software. The mesh type used in this analysis is structural. The total number of cells produced for this geometry is 582263 cells.

### Model

In this analysis, K-epsilon Standard Turbulence Viscosity model was used to check the fluid flow around the fin. In this analysis, a pressure-based solver is used. Near the wall, the Standard Wall Function is used. Energy equations will be solved with the momentum equations.

### Boundary conditions

In addition to the main inlet of the flow, two other inlets have been created on the surface of the airfoil, all of which are defined as Velocity Inlet, and the value for the main inlet is 15 m/s at 600 k. For the airfoil surface inlet the velocity is 6.59 m/s at 300 k. The wall is considered to be fully insulated.

### Discretization of equations

In this analysis, the SIMPLE algorithm is used for discretization of the equations. The momentum and energy equations are discretized in Quick Mode.

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