Talk:Thermal effusivity

Is "Thermal effusivity" just another name for "Thermal inertia" as defined on the Volumetric heat capacity page?

If so, perhaps the pages should be reworked. I also note that according to the number of Google search results, thermal inertia is the more popular name.

It is the same as the "Thermal inertia" they describe, and it links here. At the least this page should have an 'also know as thermal inertia' note. It would probably also be helpful to use the more common vairable $k$ for thermal conductivity. Jeff B. (talk) 15:30, 10 April 2019 (UTC)

It's a little more complicated, as "thermal inertia" is not a standardized term in the literature - in that it sometimes is used to refer to $k\rho c_{p}$ and sometimes used to refer to the square root of that product. I do believe merging thermal inertia with this page has merit, but it's important to be explicit about which definition of "thermal inertia" is in use. Additionally - I think there could also be merit to including other field-specific terms that are synonymous with thermal effusivity in practice (e.g., thermal absorbtivity, etc) that I've seen in the literature. 142.134.185.146 (talk) 17:23, 28 September 2020 (UTC) Sarah Ackermann, MSc

I added a simple back-of-the-envelope derivation of the expression for the contact temperature. Also, I talked about temperature as a "signal" that is transmitted; I realize this might be a bit controversial so feel free to edit. (I'm not sure how formal one can make the analogy; the expression for thermal effusivity looks a lot, but not quite, like a sort of characteristic impedance - but, and it's a big but, it's the diffusion equation, not the wave equation.) Petwil (talk) 18:32, 31 March 2021 (UTC)

I've recently added clarifying text, tables, citations, and examples. Thermal effusivity has been applied as an approximation for the thermal inertia of systems dominated by conductive heat transfer. Thermal inertia is a more general term that folks have applied to all types of heat transfer and storage systems. It has no (thus far) closed-form mathematical expression that I am aware of as being widely accepted. Upgrading the article from "Start" to "C" class.Bikesrcool (talk) 21:05, 24 May 2023 (UTC)