On the Potential of Blow-Down Conditions  in Studies of Nucleating and Two-Phase Flows of Steam

Bakhtar, F.; Heaton, Alan

doi:10.1615/ihtc8.4610

Cited by 2 publications

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“…One method of producing such a supply is under blow-down conditions. A short duration tunnel working on this principle has been constructed at the University of Birmingham [6,7]. The characteristics of two sets of profiles, one of a stator, the other of a rotor in nucleating steam, and the characteristics of the rotor profile in wet steam have been studied [8][9][10][11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Studies of nucleating and wet steam flows in two-dimensional cascades

Mashmoushy

Mahpeykar²,

Bakhtar

2004

Proceedings of the Institution of Mechanical Engineers, Part C:

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Many of the problems resulting from the formation and behaviour of the liquid phase in steam turbine blading can be more easily investigated in two-dimensional cascades. To reproduce turbine nucleating and wet steam conditions realistically requires a supply of supercooled steam. The paper is a review article, giving the features of a blow-down cascade tunnel constructed for the purpose and summarizes the results reported. Results obtained in steady supersonic tunnels are also discussed.

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Section: Introductionmentioning

confidence: 99%

Studies of nucleating and wet steam flows in two-dimensional cascades

Mashmoushy

Mahpeykar²,

Bakhtar

2004

Proceedings of the Institution of Mechanical Engineers, Part C:

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On the performance of a cascade of turbine rotor tip section blading in nucleating steam Part 3: Theoretical treatment

Bakhtar

Mahpeykar²

1997

Proceedings of the Institution of Mechanical Engineers, Part C:

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During the course of expansion in turbines, steam first supercools and then nucleates to become a two-phase mixture. Formation and subsequent behaviour of the liquid lower the performance of turbine wet stages. This is an area where greater understanding can lead to improved design. This paper describes the theoretical part of an investigation into nucleating flows of steam in a cascade of turbine rotor tip section blading. The main flow field is regarded as inviscid and treated by the time-marching technique modified to allow for two-phase effects. The viscous effects are assumed to be concentrated in boundary layers which are treated by the integral method. Comparisons are carried out with the experimental measurements presented in the earlier parts of the paper and the agreement obtained is good.

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On the Potential of Blow-Down Conditions in Studies of Nucleating and Two-Phase Flows of Steam

Cited by 2 publications

References 0 publications

Studies of nucleating and wet steam flows in two-dimensional cascades

Studies of nucleating and wet steam flows in two-dimensional cascades

On the performance of a cascade of turbine rotor tip section blading in nucleating steam Part 3: Theoretical treatment

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