Why Can I Not Place a Thermal Pickup on the Conic Constant?

  • 16 June 2020
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On the multi-configuration editor, there is a special solve called a thermal pickup. This pickup solve is used to compute a new value for a multi-configuration parameter based up on the temperature and pressure of the new configuration as compared to the 'reference' configuration. Thermal pickup solves only affect data for certain types of multi-configuration values.

The thermal expansion and contraction is assumed to be isotropic, thus the linear dimensions change equally in all directions. Therefore, a solid glass sphere is still a sphere after being heated or cooled. In the same manner, a parabolic surface , with conic of -1, will still be parabolic after any temperature change and thus the conic constant is temperature invariant. This makes sense since the conic constant is a unit-less quantity.

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