Module 3: Introduction to Finite Element Method
  Lecture 21:
 

 

The connective heat loss term can be obtained as

(21.5)

where:

and

(21.6)

The expression for and can be obtained as explained below (see Figure 21.1):

Figure 21.1: Treatment of Convective Boundary

The shape function for the vertices of the elemental domain are given as,

Therefore ,

(21.7)

Now, can be evaluated as

(21.8)

All the above mentioned elemental matrices and vectors have been obtained from the integration of the expressions for and as defined in Eq. (19.5).