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Исследование турбинной ступени с открытым радиальным зазором в рабочем колесе

Abstract

Comparison of efficiency numerical and test values for three turbine stages at different values of radial clearance has been made in order to verify 3DNS computational software system. Redesigning the profile of rotor blade peripheral section based on a numerical study using 3DNS software system allowed to decrease the influence of radial clearance on the turbine stage efficiency.

About the Authors

A. V. Granovsky
Alstom Power Uniturbo
Russian Federation


M. K. Kostezh
Alstom Power Uniturbo
Russian Federation


V. G. Gribin
МЭИ (ТУ)
Russian Federation


N. A. Lomakin
МЭИ (ТУ)
Russian Federation


References

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2. Camci C., Dey D., and Kavurmacioglu, 2003,”Tip Leakage Flows Near Partial Squealer Rims in an Axial Flow Turbine Stage,” ASME Paper 2003-GT-38979.

3. “Numerical Study of Flow and Heat Transfer on a Blade Tip with Different Leakage Reduction Strategies,” ASME Paper No. 2003-GT-38617, Acharya, S., Yang, H., Prakash, C., and Bunker, R., 2003

4. Krupa V.G., 1994, “Simulation of Steady and Unsteady Viscous Flows in Turbomachinery. AGARD-lecture series, No 198, LS-198.

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7. “Study of High Load Single-Stage turbine Aerodynamics” ISABE Paper 2003 – 1039, Venedictov V.D., Ivanov M.Ja., Nigmatullin R.Z., Rechkoblit A.J., 2003


Review

For citations:


Granovsky A.V., Kostezh M.K., Gribin V.G., Lomakin N.A. . Safety and Reliability of Power Industry. 2011;(2(13)):55-59. (In Russ.)

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ISSN 1999-5555 (Print)
ISSN 2542-2057 (Online)