The Density and Momentum Distributions of 2-Dimensional Transonic Flow in an LP-Steam Turbine

Aldo Antonio Rueda Martínez, Fernando Rueda Martínez, Miguel Toledo Velázquez, Florencio Sánchez Silva, Ignacio Carvajal Mariscal, Juan Abugaber Francis

Researching and Graduate Section Applied Hydraulics and Thermal Engineering Laboratory.

DOI: 10.4236/epe.2012.45048                

Abstract

Within turbine blade rows, particularly for cascades of high deflection angle, cross-channel gradients of steam properties may be appreciable. To determine the effects on spontaneous condensation of gradients of supersaturation normal to streamlines, the conservation equations can be incorporated in a two dimensional calculation procedure. With the help of program FORTRAN 90 a developed computational program of calculations is accomplished, whose results are communicated to the pressure and Mach number distribution, direction of flow and streamlines in the field and the drops distribution in the outlet of the stator blade mesh. The procedure contains a program section, which avoids difficulties in the strongly curved profile of the leading and trailing edge by a developed computational mesh construction.

Keywords

Steam Turbines; Nucleation; Two Phase Flow; Erosion

Conflicts of Interest

The authors declare no conflicts of interest.

References

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