convection

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convection

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Iconic Diagrams\Mechanical\Thermal\Components

Use

Domains: Continuous. Size: 1-D. Kind: Iconic Diagrams (Pseudothermal).

Description

This model describes linear heat convection between a material surface and gas or fluid flow. The basic equation is:

 

p.dQ = (p1.T - p2.T)*Gc;

 

where p1.T is the temperature of at the surface and p2.T the gas or fluid temperature. Gr is the thermal conductance which is function of the surface area A and the convection coefficient h:

 

Gr = A*h;

 

In most cases h is not contant but a non-analytical function of the gas or fluid speed and other poperties. In most cases Gr is experimentally defined. Therefore G is given as an input signal.

Interface

Ports

Description

p1

p2

Material port

Fluid port

Causality

 

indifferent

 

Input

 

G

thermal conductance [W/K]