What’s new in Celsius Thermal Solver 2023.1 - #2 – Heat transfer coefficients

This 3-part series highlights new and enhanced features of Cadence^® Celsius^TM Thermal Solver in the System Analysis 2023.1 base release. The Sigrity and System Analysis (SIGRITY/SYSANLS) 2023.1 base release is now available at Cadence Downloads.

Ability to Import Heat Transfer Coefficient Information from a CFD File

(New) The Celsius Solid Objects Simulation for 3D Structures (Celsius 3D) module now offers the ability to import the heat transfer coefficients for terminals defined in the Celsius Fluid Flow Simulation (Celsius CFD) and Celsius Solid Objects Simulation for Layered Structures (Celsius 2D) modules. The new Import button in the Heat Transfer Coefficient dialog box lets you import the .cfd file generated in Celsius 2D and Celsius CFD. This file includes both the terminal definition and HTC information. Additionally, you can now flip or rotate the X, Y, and Z axes by selecting different nodes from the Lower Left Corner and Lower Right Corner drop-down lists and preview your changes in the Layout pane.

Consistent Terminal and Heat Transfer Coefficient Names

(Enhanced) Terminal names in Celsius Fluid Flow Simulation (Celsius CFD) now match the heat transfer coefficient names in Celsius Solid Objects Simulation for 3D Structures (Celsius 3D). If you set heat transfer coefficients in Celsius 3D and then open the corresponding .3dth file in Celsius CFD, the terminal names in the .cfd file following the simulation run are consistent with the heat transfer coefficient names defined in Celsius 3D. This makes it easier to identify which terminal is connected to which surface.

The image below shows the heat transfer coefficient defined in Celsius 3D.

When the design is opened in Celsius CFD, the terminal name matches the heat transfer coefficient name provided in Celsius 3D.

After the simulation run, the terminal name is automatically carried over to the resulting .cfd file.

Team SimTech 

Cadence Design Systems