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Help > Solve > Simulation Tutorials > Hollow Sphere

Hollow Sphere

This simulation tutorial will walk you through the following:

  • Applying thermal power and temperature boundary conditions
  • Choosing a mesh setting and running the simulation
  • Viewing the temperature distribution in the simulation results

Looking for a video? Check out Connecting rod. It's a different model, but the steps shown there are broadly the same as the steps described below.

Import the CAD file

  1. In OnScale Solve, from the Projects tab of the dashboard, create a new project.
  2. In the Tool Bar, click (+) and then Library. Under OnScale Library, Select Hollow Sphere.
  3. Select Meters as the length unit.

Assign a material

  1. Using the tree, hold down SHIFT and select from Part 3, Part 2 and Hollow Sphere Section.
  2. Using the Material dropdown in the properties panel, search for Aluminum and assign to the selected parts.

Add a power source

  1. Select the Physics tab.
  2. Toggle off Mechanical Physics and enable Thermal Physics
  3. In the toolbar, using the Thermal Physics icon , select  -> Power and change the type to Power Density in the property panel.
  4. Select Hollow Sphere Section part from the tree
  5. Select Power Density from the Type dropdown.
  6. Enter 100 W/m3 in the Power property panel then select Done.

Fix the temperature

  1. Select the Physics tab.
  2. In the toolbar, under the Thermal Physics icon , select  -> Temperature.
  3. Select Part 3 > Face 4 & Part 2 > Face 4.
  4. Enter 20 deg. C in the Temperature property panel then select Done.

Run a simulation

  1. Select the Simulator tab.
  2. In the properties panel, select MESH & ESTIMATE. This automatically meshes your model, estimates how long the simulation will take to run, and estimates what the likely core-hour cost will be.
  3. Once the meshing and estimation process has finished, use the cost–time slider to select the level of computational resource that you want to use for this simulation.

    By using additional computational resources for the simulation (and hence spending additional core-hours), the simulation can be completed faster.

  4. Select RUN to run the simulation.

Analyze the results

  1. Once the simulation has finished, select Load Results to open the results in the Results tab.
  2. Temperature will be the selected dataset for a Thermal simulation.
  3. Expand Legend in the Properties Panel
  4. Select Inferno Inverted in the Pallete drop down.