Complete Model—Gas and Condensed Phases

The mathematical problem outlined above can be expressed in a variety of ways. Non-dimensional form allows the problem to be expressed in terms of the minimum number of parameters and independent variables. 

The primary dependent variable of importance is the mass flux. The independent variables, in order of decreasing importance, are pressure, initial temperature, and radiant flux. Pressure enters as an independent variable through Dg, which also 

One of the key issues is the dependence of mass flux on the various parameters. Not all parameters have a strong influence on mass flux in all regions of parameter space. The dependence of mass flux on various parameters in different limiting 

---