The flow of wet steam in a one-dimensional nozzle

The formation of water droplets in a low-pressure steam turbine, seriously degrades the efficiency of the generator. A model has been developed which includes the nucleation and subsequent growth of the droplets as the extra equations to the usual Euler equations for dry steam. A feature of this wor k is that all the equations are cast in Eulerian form compared to much of t he previous: work which considered the droplets in Lagrangian form. The ens uing equations are solved using a second-order upwind TVD scheme which can cope with the steep gradients which occur in the solution. The results for a I-D nozzle are presented and compared with experimental results. Copyrigh t (C) 1999 John Wiley & Sons, Ltd.