TryItNow! ANSYS AIM · 2016-09-06 · 1 © 2015 ANSYS, Inc. August 26, 2016 ANSYS Confidential...

1 © 2015 ANSYS, Inc. August 26, 2016 ANSYS Confidential

TryItNow! ANSYS AIMStep by Step Walkthrough:

Fluid FlowThermal Mixer


ANSYS designed this TryItNow! experience to give you quick access to ANSYS AIM simulations on the cloud.

In this example, a steady-state thermal-flow simulation of thermal mixer shows how easy AIM sets up and solves fluid flow. Default settings highlight ease-of-use and show how AIM automates many of the simulation steps. AIM’s integrated geometry modeling extracts the fluid flow volume from the original structural part.

Step by Step Walkthrough:Thermal Mixer


Select Fluid Flow Template

Select the “Fluid Flow” template.


Modify Template settings

2. Select “Create Simulation Process” and select the geometry file thermal_mixer.x_t to execute the template.

1. Enable thermal effects


Task Based Workflow

The necessary simulation tasks are created, and the geometry loaded.


Access Geometry Editing

Right-click on the Geometry task and select Edit Geometry.


Specify bounding faces for Volume Extract

1. Select the ‘Prepare’ tab

2. Select ‘Volume Extract’

3. Select the three faces that bound the pipe openings.


Specify Seed Face for Volume Extract

1. Select Seed Face tool guide

2. Select an internal pipe face

3. Select ‘Complete’ to extract the flow volume


Exit geometry editing

1. Select the x to return to physics simulation.


Hide the pipe body

1. Select any face on the pipe solid body, then right-click and select Hide Body.


Specify Mesh Inflation

4. Add the selected faces to inflation

2. Right-click and use the ‘Fix’ menu to navigate to Inflation 1

1. Select the Mesh task

3. Select all wall faces by using Shift-left mouse to box select all faces, then Ctrl-left mouse to deselect the three pipe opening faces.


Generate and Review Mesh

Right-click to Generate Mesh and review result.


• Select the Physics Tasks and review the Physics panel. The initial settings are automated based on the selected template. In each section you can review the setup and modify it based on your own requirements.

• The material assignments, physics region locations and solver options can be reviewed.

The Physics Panel


Set the Physics Region

1. Select the Physics Region from the Physics Panel

2. Selection filters enable you to switch between selecting points, lines, surfaces or bodies. Turn on the Body selection filter.

3. Select the Fluids body

4. Replace the Physics Location with the selected body


Change Material

1. Select the Material Assignment from the Physics Panel, and change the material from Air to Water.


Specify Cold Water Inlet

2. Select the large Inlet face.

3. Right-click and Add an Inlet Fluid Flow Condition.

4. Specify inlet velocity of 0.1 m/s and inlet temperature of 30 C.

1. Turn on the Face selection filter.


Specify Hot Water Inlet

1. Select the small Inlet face.

2. Right-click and Add an Inlet Fluid Flow Condition.

3. Specify inlet velocity of 0.5 m/s and inlet temperature of 80 C.


Specify Outlet Boundary

1. Select the Outlet face.

2. Right-click and Add an Outlet Fluid Flow Condition.

3. Specify the outlet Pressure as 0 Pa.


Specify Wall Boundary

Right-click and a add Wall boundary condition. (AIM will automatically select all surfaces without a boundary condition specification for the wall.)


Optional, Increase number of Solver processes

AIM always runs in parallel, using 2 processes by default. You can accelerate solution time by increasing the number of processes (to a maximum of 6 for Try It Now).

From the Physics Panel, navigate to Solver Options/Solver Settings/Launch Controls, and set the number of processes. Hit Apply when done.


Add Flow Streamlines

1. Select the Results task.

2. Select the hot water inlet face and add a Streamline Result.


Update Results (and Physics)

Click on Results task right-click and select Update to execute solution and calculate results.

The Solution Monitors tab can be used to evaluate convergence. This case defaults to moderate convergence sufficient for demonstration purposes. Click OK when the convergence warning appears.


Post-process Streamlines

1. Post-process the results from the Search and Select Bar.

4. Click to animate streamlines.

3. You can show the flow domain by turning on Faces, and enabling Translucent or Enhanced display.

2. Right-click and select Show All to re-display the solid body.


Create a Cut Plane

1. Select the Outlet face and add a Construction Geometry Plane

2. Use the Gizmo to rotate the plane 90 degrees around the Y-axis. Hold down ‘Ctrl’ while rotating the plane to snap in 5 degree increments.


Add a Temperature Contour

1. Right-click to add a Contour Result, and select Plane 1 & Temperature.

2. Right-click to Evaluate the Result.


Add Calculated Value

1. Select outlet surface and right-click to add calculated value.

2. Specify Function as Average and Variable as Temperature and select Evaluate to compute average temperature.


Ready to learn more about ANSYS AIM?

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TryItNow! ANSYS AIM · 2016-09-06 · 1 © 2015 ANSYS, Inc. August 26, 2016 ANSYS Confidential...

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Transcript of TryItNow! ANSYS AIM · 2016-09-06 · 1 © 2015 ANSYS, Inc. August 26, 2016 ANSYS Confidential...