Why are Thermal[Conductor|Resistor] so different from their Convective* counterparts

[kakila]

From a purely mathematical perspective both modes conduction and Convection are indistinguishable, both have the form h * dT.
Why is this not reflected in their implementations. For example:

• Why does not the Thermal* element impose same flow on its ports/connectors?
• Why is Conductive* not based on its Thermal* counterpart?
• Why is the code of these elements so different?

In my view, Convective* (except for the heat flow conditions imposed) are just syntax sugar. Giving a semantic interface that allows the user to express the condition in which the exchange is between a solid and a fluid, but otherwise should not differ form the Conductive* (Thermal*) counterparts. Am I missing something?

[ven-k]

The equations that are defined for ports are same. The Thermal* components extend the Elements1D which defines port_a, port_b; while Convective*'s port equations are in respective components.

Although the ports for both Thermal* and Convective* components are HeatPorts, the distinction is that former has HeatPort systems named as port_a and port_b, while latter has them as solid and fluid.

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While here, I think I can define ConvectiveElements1D (which is similar to Elements1D, but has solid and fluid ports), and extend that. @baggepinnen what are your thoughts about this?

EDIT:

• I've added ConvectiveElements1D via: Fix the ConvectiveConductor equation and adds ConvectiveElement1D #179