In this two-part paper, results of the periodical unsteady flow field within the third rotor blade row of the four-stage Dresden low-speed research compressor are presented. The main part of the experimental investigations was performed using laser Doppler anemometry. Results of the flow field at several spanwise positions between midspan and rotor blade tip will be discussed. In addition, time-resolving pressure sensors at midspan of the rotor blades provide information about the unsteady profile pressure distribution. In Part II of the paper, the flow field in the rotor blade tip region will be discussed. The experimental results reveal a strong periodical interaction of the incoming stator wakes and the rotor blade tip clearance vortices. Consequently, in the rotor frame of reference, the tip clearance vortices are periodical with the stator blade passing frequency. Due to the wakes, the tip clearance vortices are separated into different segments. Along the mean vortex trajectory, these parts can be characterized by alternating patches of higher and lower velocities and flow turning or subsequent counter-rotating vortex pairs. These flow patterns move downstream along the tip clearance vortex path in time. As a result of the wake influence, the orientation and extension of the tip clearance vortices as well as the flow blockage periodically vary in time.
Skip Nav Destination
e-mail: ronald.mailach@tu-dresden.de
e-mail: ingolf.lehmann@kbb-turbo.de
e-mail: konrad.vogeler@tu-dresden.de
Article navigation
October 2008
Research Papers
Periodical Unsteady Flow Within a Rotor Blade Row of an Axial Compressor—Part II: Wake-Tip Clearance Vortex Interaction
Ronald Mailach,
e-mail: ronald.mailach@tu-dresden.de
Ronald Mailach
Technische Universität Dresden
, Institut für Strömungsmechanik, 01062 Dresden, Germany
Search for other works by this author on:
Ingolf Lehmann,
e-mail: ingolf.lehmann@kbb-turbo.de
Ingolf Lehmann
Kompressorenbau Bannewitz GmbH
, Windbergstrasse 45, 01728 Bannewitz, Germany
Search for other works by this author on:
Konrad Vogeler
e-mail: konrad.vogeler@tu-dresden.de
Konrad Vogeler
Technische Universität Dresden
, Institut für Strömungsmechanik, 01062 Dresden, Germany
Search for other works by this author on:
Ronald Mailach
Technische Universität Dresden
, Institut für Strömungsmechanik, 01062 Dresden, Germanye-mail: ronald.mailach@tu-dresden.de
Ingolf Lehmann
Kompressorenbau Bannewitz GmbH
, Windbergstrasse 45, 01728 Bannewitz, Germanye-mail: ingolf.lehmann@kbb-turbo.de
Konrad Vogeler
Technische Universität Dresden
, Institut für Strömungsmechanik, 01062 Dresden, Germanye-mail: konrad.vogeler@tu-dresden.de
J. Turbomach. Oct 2008, 130(4): 041005 (10 pages)
Published Online: July 31, 2008
Article history
Received:
June 5, 2007
Revised:
September 10, 2007
Published:
July 31, 2008
Connected Content
A companion article has been published:
Periodical Unsteady Flow Within a Rotor Blade Row of an Axial Compressor—Part I: Flow Field at Midspan
Citation
Mailach, R., Lehmann, I., and Vogeler, K. (July 31, 2008). "Periodical Unsteady Flow Within a Rotor Blade Row of an Axial Compressor—Part II: Wake-Tip Clearance Vortex Interaction." ASME. J. Turbomach. October 2008; 130(4): 041005. https://doi.org/10.1115/1.2812330
Download citation file:
Get Email Alerts
Evaluating Thin-Film Thermocouple Performance on Additively Manufactured Turbine Airfoils
J. Turbomach (July 2025)
Thermohydraulic Performance and Flow Structures of Diamond Pyramid Arrays
J. Turbomach (July 2025)
Related Articles
Vortex-Wake-Blade Interaction in a Shrouded Axial Turbine
J. Turbomach (October,2005)
Analysis of Rotor-Stator-Interaction and Blade-to-Blade Measurements in a Two Stage Axial Flow Compressor
J. Turbomach (January,2011)
Potential and Viscous Interactions for a Multi-Blade-Row Compressor
J. Turbomach (October,2004)
The Influence of Turbulence on Wake Dispersion and Blade Row Interaction in an Axial Compressor
J. Turbomach (January,2006)
Related Proceedings Papers
Related Chapters
Other Components and Variations
Axial-Flow Compressors
Aerodynamic Performance Analysis
Axial-Flow Compressors
Outlook
Closed-Cycle Gas Turbines: Operating Experience and Future Potential