This is a model of linear mass convection, e.g., the mass transfer between a plate and the surrounding air. It may be used for complicated solid geometries and fluid flow over the solid by determining the convective mass transfer coefficient Gc by measurements. The basic constitutive equation for convection is
m_flow = Gc*(solid.p - fluid.p);
m_flow: Mass flow rate from connector 'solid' (e.g., a plate)
to connector 'fluid' (e.g., the surrounding air)
Gc = G.signal[1] is an input signal to the component, since Gc is nearly never constant in practice. For example, Gc may be a function of the speed of a cooling fan. For simple situations, Gc may be calculated according to
Gc = A*h
A: Convection area (e.g., perimeter*length of a box)
h: mass transfer coefficient
where the mass transfer coefficient h is calculated from properties of the fluid flowing over the solid.