A time marching,finite area calculation of general quasi-one-dimensional flows

A numerical technique for calculating the quasi-one-dimensional steady flow of a viscous heat conducting compressible fluid, with allowance for wall friction and external heat transfer, is discussed. The time-dependent flow equations for a control volume are solved by an explicit, time marching, finite area method, basically of first order. The scheme's versatility is illustrated by calculating flows in convergent-divergent nozzles and, Fanno and Rayleigh line processes. The effects of the initial conditions and a relaxation factor used for increasing stability are assessed.