3 Methods for Applying a Spatially Varying Heat Flux in Ansys Mechanical

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In most thermal simulation applications, you specify a heat flux on a surface. But what if you want to specify a heat flux into the volume of your part, and the heat flux varies in three dimensions? This is something that we mentioned in several blog article over the years, but we have never created an example of showing all the methods for spatially varying heat flux in Ansys Mechanical.

PADT’s Bronislav Piak fielded a tech support question recently on this very topic, and when the customer had it working, he created this detailed blog post that shows three different methods:

  1. Multi-Axis Tabular Loads in Ansys Mechanical (original post)
  2. APDL Snippets in Ansys Mechanical Using a Table (original post)
  3. APDL Snippets in Ansys Mechanical Using an Equation (original post)

How To Apply a Spatially Varying Heat Flux In Ansys Mechanical – 3 Methods

Here is a PDF of Bronislav’s presentation

Here is a zip file with the sample workbench model and all the MS Excel tables and APDL scripts he references:

Padt Is Here To Help With Things Like Spatially Varying Heat Flux and So Much More

This post is a great example of why customers from brand new startups to national labs to large Aerospace companies choose PADT as their Ansys support provider. It’s also why those same companies come to us for training and consulting. We know these tools, we know engineering fundamentals, and we know how to help you be more efficient or help you solve tough problems. If you have any type of simulation need, reach out, let’s get your engineer and our engineers on a call and see what a good fit looks like.

An image of an equation, a spreadsheet, and an FEA model showing spatially varying heat flux

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