Comflow® samples

[
Introduction ] [ Two Flow ] [ Sample #2 ] [ Sample #3 ] [ Sample #4 ] [ Sample #5 ]

Introduction

In this chapter a number of examples are given. These examples are described briefly supported with pictures. These pictures illustrate a part of the setup of the model and results of the calculation. Each example is concluded with a possiblity to downdload a zip-file which contains the input and results files of the concerning example. In combination with the download version of Comflow® the model as well as the results of the concerning example can be studied.




Two Flow

This example is about a counter flow (air) with different inlet temperatures for the two flows. Both flows are seperated by aluminium. There is heat transfer through the aluminium, therefore the CHT module is used. From the dimensions and the inlet velocities it can be concluded that the flow is laminar (The Reynolds number of this flow is about 300). The applied grid is 100x30 cells (Click figure to enlarge)

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For the two inlets parabolic velocity profiles with different temperatures are defined. The two pictures concern the velocity (left picture) and temperature (center picture) boundary conditions of the left inlet. The right picture is the thermal boundary condition (heat resistance line) simulating the heat transfer from flow to the aluminium and vise versa. The heat resistance line is set to calculate the heat tranfer by the program. Based on the medium and velocity near the wall a heat resistance is calculated. (Click on these pictures to enlarge)

These figures shows the result of the calculation. A vector plot, a temperature plot and a variable plot of the temperature are shown. The vector plot shows the parabolic profile throughout the flow channel. The temperature plot shows a the heat transfer through the aluminium (Click on these pictures to enlarge)

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The left variable plot shows the temperature profile in Y-direction halfway the model. The right one shows on different Y-positions the temperature profile in X-direction. Clearly vissible is the temperature development throughout the model. (Click on these pictures to enlarge)

Download the example file here.




Sample #2

Under construction




Sample #3

Under construction




Sample #4

Under construction



Sample #5

Under construction



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