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About the Sankey Diagram

This Sankey diagram visualizes the heat flow within a thermal system.
This network was automatically generated from Ansys simulation data with no manual effort required. It provides simulation engineers with a clear visualization to verify correct settings, power loss values, and other critical parameters
Key characteristics include:

  • Nodes: Represent physical bodies or components in the system such as PCB, Dies, gap-fillers, Inductor, Housing
    • They are color coded based on their avg/peak temperature
    • They are automatically grouped for clarity
  • Edges: Illustrate heat transfer between nodes
    • Edge thickness and label corresponds to the magnitude of heat transfer

The diagram effectively demonstrates heat propagation by showing:

  • Heat origins (e.g., die or MOSFETs)
  • Intermediate component heat transfer
  • Final heat dissipation to the ambient environment (e.g., fluid-ext, coolant node)

Acknowledgment

Special thanks to my colleagues at Ansys for their invaluable support in developing this visualization framework. Their expertise in API commands and contributions to the initial project development were instrumental.