Chapter 4, Problem 4.64P

(a)

To determine

The temperature at the node $1$ .

The temperature at the node $2$ .

The temperature at the node $3$ .

The temperature at the node $4$ .

The temperature at the midpoint.

(b)

To determine

The temperature at the node $1$ due to reduction in mesh size by factor $2$ .

The temperature at the node $2$ due to reduction in mesh size by factor $2$ .

The temperature at the node $3$ due to reduction in mesh size by factor $2$ .

The temperature at the node $4$ due to reduction in mesh size by factor $2$ .

The temperature at the midpoint due to reduction in mesh size by factor $2$ .

(c)

To determine

The plot of the isotherms for the temperature $75\text{°C}$ , $150\text{°C}$ and $250\text{°C}$ .