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TECHNICAL PAPERS

The Investigation of Turbine and Exhaust Interactions in Asymmetric Flows— Blade-Row Models Applied

[+] Author and Article Information
J. J. Liu, T. P. Hynes

Whittle Laboratory, University of Cambridge, Cambridge CB3 0DY, UK

J. Turbomach 125(1), 121-127 (Jan 23, 2003) (7 pages) doi:10.1115/1.1516812 History: Revised October 02, 2001; Online January 23, 2003
Copyright © 2003 by ASME
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References

Benim, A. C., Geiger, M., Doehler, S., Schoenenberger, M., and Roemer, H., 1995, “Modelling the Flow in the Exhaust Hood of Steam Turbines Under Consideration of Turbine-Exhaust Hood Interaction,” 1st European Congress, Turbomachinery Fluid Dynamic and Thermodynamic Aspects, March 1–3.
Joo,  W. G., and Hynes,  T. P., 1997, “The Simulation of Turbomachinery Blade Rows In Asymmetric Flow Using Actuator Disks,” ASME J. Turbomach., 119, pp. 723–732.
Joo,  W. G., and Hynes,  T. P., 1997, “The Application of Actuator Disks to Calculations of the Flow in Turbofan Installations,” ASME J. Turbomach., 119, pp. 733–741.
Taylor, J., 1997, personal communication.
Liu, J. J., and Hynes, T. P., 2002, “The Investigation of Turbine and Exhaust Interactions in Asymmetric Flows: Part 2—Turbine-Diffuser-Collector Interaction,” ASME Paper 2002-GT-30343.
Joo, W. G., 1994, “Intake/Engine Flowfield Coupling in Turbofan Engines,” PhD thesis, Cambridge University Engineering Department, United Kingdom.
Roe, P. L., 1984, “Generalized TVD formula for Lax-Wendroff Scheme,” ICASE Report, No. 84-53.
Roe,  P. L., 1981, “Approximate Riemann Solvers, Parameter Vectors and Difference Schemes,” J. Comput. Phys., 43, pp. 357–372.
Van Leer,  B., Thomas,  J. L., Roe,  P. L., and Newsome,  R. W., 1987, “A Comparison of Numerical Flux Formulas for the Euler and Navier-Stokes Equations,” AIAA Pap. 87–1104. Honolulu, Hawaii.
Baldwin,  B. S., and Lomax,  H., 1978, “Thin Layer Approximation and Algebraic Model for Separated Turbulent Flows,” AIAA Pap., No. 78–257.
Ni,  R. H., 1989, “Prediction of 3D Multi-Stage Turbine Flow Field Using a Multiple-Grid Euler Solver,” AIAA Pap., 89–0203.
Liu, J. J., 1998, “The Calculation of Asymmetric Flow in Turbine Exhaust Systems,” Ph.D. thesis, Cambridge University Engineering Department, United Kingdom.

Figures

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Illustration of actuator disk model
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Streamline and quasi-orthogonal line in the meridional plane
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Diagram for disk boundary condition
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Choking model for a turbine blade passage
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Mesh used for disk-model validation
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Mach number distribution across actuator disks
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Density distribution across actuator disks
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Pressure distribution across actuator disk
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Mesh used for the comparison of disk boundary conditions; two disks are located at i=9 and i=13
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Mach number distributions for low-speed flow, the mass flow error is 0.19% using Eq. (3) (Model A), and it is 0.86% using Eq. (5) (Model B)
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Mach number distributions for high-speed flow, the mass flow error is 0.12% using Eq. (3) (Model A), and it is 6.16% using Eq. (5) (Model B)
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Multiblock mesh used for an exhaust hood
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Stream ribbons starting from four radial lines at the diffuser inlet in the exhaust hood
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Mach contours at a plane of θ=0 deg in the exhaust hood

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