T(x) =T + 2,[(x2 -Lx /X2 -LXv)tan2 + Ro(x Xv)] (42)
P,v
The wall temperatures are again calculated by one simple equation. This equation is
dependent on what phase the coolant is in. This equation is shown below.
T, = + Tm () (43)
h
The same type of analysis is carried out for a cylindrical geometry. These equations are
then used to formulate a simulation for both the free stream combustion gas consideration
and the constant heat flux consideration.
For supercritical fluids the numerical model is different. There is not a two-phase
flow to deal with. The only difference between the calculations for this flow and for the
two-phase flow is how the heat transfer coefficients are calculated. These calculations
are shown in chapter 2.