The Design – Analysis of CFD Simulation for Radiator | ANSYS Fluent
The present problem concerns the simulation of water liquid flow around a radiator. This radiator has seventeen fans for transmitting water liquid flow in the vertical direction.
This radiator consists of several rows of fins that increase the heat transfer rate. Hot water flows through the upper and lower pipes of the radiator and its middle fins, which is modeled; In fact, it is assumed that all the walls of the pipes and radiator fins have determined temperature at different points. Therefore, the temperature profile depends on the height of the radiator plates.
This temperature profile of the plates, on which without UDF, is obtained in such a way that the temperature of the hot water entering the radiator from the upper part is initially assumed to be 385 K, which after flowing into the pipes and downward moving, heat exchange with the ambient airflow, and reaches its lowest temperature value of 323 K in the lower part.
In this analysis, it has been tried to simulate and analyze a radiator using Ansys Fluent software.
Geometry & Grid
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 unstructured. The total number of volume properties for geometry is 5,1908e+006 mm³.
In this analysis, the laminar viscosity model is used to check the fluid flow.
The flow of primary input design modeler geometry for this analysis is considered as velocity magnitude and is 0,5 m/s. The turbulence of the design modeler is set with an intensity equal to 5 %. The turbulence viscosity ratio of the design modeler is set with a viscosity ratio of 10.
The flow output range is also considered as a pressure outlet for the flow output region and gauge pressure is equal to 0. The inner wall is also considered a Stationary Wall.
Discretization of Equations
According to the type of flow, the SIMPLE algorithm is used to discretize the Pressure-Velocity Coupling of the solution method. The momentum equation has been discretized in the Second Order Upwind.
The results are presented as temperature contours as well as streamlines.
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