Radiator considering Internal Flow CFD Simulation

$90.00 Student Discount

In this project, a radiator with an internal flow has been simulated and the results of this simulation have been investigated.

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.


Radiator considering Internal Flow, Ansys Fluent CFD Simulation Training

In this case, we simulated an internal flow radiator is simulated by Ansys Fluent software. In this modeling, the hot oil is cooled with cold water so that a spiral tube in which the oil flows into a rectangular cubic chamber that Water is flowing inside it. The oil inlet velocity is 0.05 m / s with a temperature of 400 K. The water inlet velocity is 0.01 m / s with a temperature of 273 K. Both fluids are discharged to an environment at atmospheric pressure.


Geometry & Mesh

The geometry of this modeling is three-dimensional and is designed with Spaceclaim software, which consists of two parts: a spiral tube and a rectangular cubic chamber.


The meshing of this modeling has been done with Ansys Meshing software, and the total number of cells is 1615429, which can be seen in the picture below.


CFD Simulation

We consider several assumptions to simulate the present model:

  • We perform a pressure-based solver.
  • The simulation is steady.
  • The gravity effect on the fluid is ignored.

The following table represents a summary of the defining steps of the problem and its solution:

Models (Radiator)
Viscous k-epsilon
k-epsilon model realizable
near-wall treatment Menter-lechner
Energy On
Boundary conditions (Radiator)
Inlet water Velocity Inlet
velocity magnitude 0.01 m.s-1
temperature 273 K
Inlet oil Velocity Inlet
velocity magnitude 0.05 m.s-1
temperature 400 K
Outlet water Pressure Outlet
gauge pressure 0  pascal
Outlet oil Pressure Outlet
gauge pressure 0 pascal
Inner Wall Wall
wall motion stationary wall
thermal condition coupled
Outer Wall Wall
wall motion stationary wall
thermal condition convection
heat transfer coefficient 10 W.m-2.K-1
free stream temperature 290 K
Methods (Radiator)
Pressure-Velocity Coupling SIMPLE
pressure second-order
momentum second-order upwind
turbulent kinetic energy first-order upwind
turbulent dissipation rate first-order upwind
energy second-order upwind
Initialization (Radiator)
Initialization methods hybrid

Radiator considering Internal Flow Results

After simulating that temperature, speed, and pressure contours can be drawn, it is clear that this radiator has been able to do its job well and has decreased the oil temperature from 400 K to 363 K. The temperature of the water itself has increased by 20 during this process. The inlet speed of water and oil greatly affects heat transfer, and naturally, the outlet temperatures of water and oil can be changed.


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