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Step 1: Pre-Analysis

With From the current problem setupstatement, we know that the temperature will increase as the air passing through the heated section. Depending on whether the pipe is long enough, we might see uniform temperature at the end of the pipe.

Since the pipe cross-section is circular, we'll assume that the flow is axisymmetric. In cylindrical polar coordinates, this means that the flow variables depend only on the axial coordinate x and radial coordinate r, and are independent of the azimuthal coordinate θ. Hence we can model the pipe problem with a rectangular domain.

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Figure above shows the simplified geometry of our problem where R = radius of the pipe, and L = length of the pipe.

ANSYS Simulation Flow

are solving static structural problem.

Start ANSYS Workbench

We are using FLUENT in solving this problem. With the new release of ANSYS 12, there have been a lot of improvement in term of overall flow. We start our simulation by first starting the ANSYS workbench.

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At the left hand side of the workbench window, you will see a toolbox full of various analysis systems. In the middle, you see an empty work space. This is the place where you will organize your project. At the bottom of the window, you see messages from ANSYS.

Select Analysis Systems

Since our problem involves fluid flowstatic analysis, we will select the FLUENT Static Structural (ANSYS) component on the left panel.

Left click (and hold) on Fluid Flow (FLUENT), and drag the icon to the empty space in the Project Schematic. Here's what you get:

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https://confluence.cornell.edu/download/attachments/111221567/workbench%20fluent.png

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