Liquid metal flows through a circular tube in which the velocity and temperature profiles are governed by:
\(U\left( r \right) = {\rm{A}};\;T\left( r \right) - {T_W} = B\left[ {1 - {{\left( {\frac{r}{R}} \right)}^2}} \right]\)
Where, TW and R are the wall radius and temperature respectively, and A, B are constants. The bulk mean temperature of water TM is given by:1
\({T_M} = {T_W} + \frac{{\rm{B}}}{2}\)
2
\({T_M} = {T_W} + {\rm{B}}\)
3
\({T_M} = {T_W} + \frac{A}{2}\)
4
\({T_M} = {T_W} - \frac{{\rm{B}}}{2}\)