Moved a warning to throw a print statement with an error when b = 2 and Re is less than 800.
Moved a warning to throw a print statement with an error when b = 2 and Re is less than 800.

Jhaefner/PressureDrop,Jhaefner/TORCHE,Jhaefner/Cross-Flow-Pressure-Drop-Studies,Jhaefner/TORCHE,Jhaefner/Cross-Flow-Pressure-Drop-Studies,Jhaefner/PressureDrop