A comparative study of treatment of two-dimensional two-phase flows of steam by a Runge-Kutta and by Denton's methods

F. Bakhtar1, M Y Zamri2, J. M. Rodríguez-Lelis3
1Department of Mechanical and Manufacturing Engineering, University of Birmingham, Edgbaston, UK
2Department of Mechanical Engineering, Universiti Tenaga Nasional, Kajang, Malaysia#TAB#
3Departamento de Ingenieria Mecanica, Interior Internado Palmira, Cuernevaca, Mexico

Tóm tắt

This paper describes a comparative study of the treatment of two-dimensional nucleating flows of steam using two different time-marching numerical schemes. A treatment based on Denton's scheme but a refined grid has been available from earlier work. To compare with this a treatment based on the Runge-Kutta scheme has been developed, which is described. Solutions using this scheme and a simple mesh are compared with experimental results and with solutions using the earlier treatment. The agreement obtained between the two schemes and with the experimental results is satisfactory. Oscillating flows in a convergent-divergent nozzle are also examined and excellent agreement obtained with experimental measurements.

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