The results of a numerical investigation to predict the flow in the wake regions of compressor cascades, and wakes and mixing in rotors are presented in this paper. Part I deals with flow in compressor cascades including the effects of change in loading (incidence) and the inlet free-stream turbulence intensity. Part II of the paper deals with the predictions of the rotor flow field, including wakes and spanwise mixing. The wake behavior has been studied numerically using a three-dimensional incompressible Navier–Stokes solver with a high Reynolds number form of the k–ε turbulence model. The equations are solved using a time-dependent implicit technique. The agreement between the measured data and predictions is good, including the wake profile, decay, and losses. The ability of the pseudocompressibility scheme to predict the entire flow field including the wake profile and its decay characteristics, effect of loading, and the viscous losses of a compressor cascade is demonstrated. The numerical analysis shows a slight increase in the total pressure loss coefficient through the cascade with increasing turbulence levels. The results also show a slight increase in the rate of decay of the wake at higher turbulence levels but the change in the spreading of the wake was found to be very small with increased turbulence levels.
Skip Nav Destination
Article navigation
July 1992
Research Papers
Numerical Prediction of Wakes in Cascades and Compressor Rotors Including the Effects of Mixing: Part I—Cascade Wakes Including the Effects of Incidence and Free-Stream Turbulence
N. Suryavamshi,
N. Suryavamshi
Department of Aerospace Engineering, The Pennsylvania State University, University Park, PA 16802
Search for other works by this author on:
B. Lakshminarayana
B. Lakshminarayana
Department of Aerospace Engineering, The Pennsylvania State University, University Park, PA 16802
Search for other works by this author on:
N. Suryavamshi
Department of Aerospace Engineering, The Pennsylvania State University, University Park, PA 16802
B. Lakshminarayana
Department of Aerospace Engineering, The Pennsylvania State University, University Park, PA 16802
J. Turbomach. Jul 1992, 114(3): 607-616 (10 pages)
Published Online: July 1, 1992
Article history
Received:
March 4, 1991
Online:
June 9, 2008
Citation
Suryavamshi, N., and Lakshminarayana, B. (July 1, 1992). "Numerical Prediction of Wakes in Cascades and Compressor Rotors Including the Effects of Mixing: Part I—Cascade Wakes Including the Effects of Incidence and Free-Stream Turbulence." ASME. J. Turbomach. July 1992; 114(3): 607–616. https://doi.org/10.1115/1.2929185
Download citation file:
Get Email Alerts
Cited By
Related Articles
A Correlation-Based Transition Model Using Local Variables—Part II:
Test Cases and Industrial Applications
J. Turbomach (January,0001)
Aerodynamic Blade Row Interactions in an Axial Compressor—Part I: Unsteady Boundary Layer Development
J. Turbomach (January,2004)
Three-Dimensional Navier–Stokes Computation of Turbomachinery Flows Using an Explicit Numerical Procedure and a Coupled k –ε Turbulence Model
J. Turbomach (July,1992)
Unsteady Transition Phenomena at a Compressor Blade Leading Edge
J. Turbomach (April,2008)
Related Proceedings Papers
Related Chapters
Outlook
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Cavitating Structures at Inception in Turbulent Shear Flow
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
Fluidelastic Instability of Tube Bundles in Single-Phase Flow
Flow-Induced Vibration Handbook for Nuclear and Process Equipment