Mario Eck
Technical University of Berlin
6 Papers
3 Citations
Mario Eck is an academic researcher from Technical University of Berlin. The author has contributed to research in topics: Vortex & Axial compressor. The author has an hindex of 3, co-authored 6 publications.
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Papers
Three-Dimensional Flow Field in Highly Loaded Compressor Cascade
TL;DR: In this article, the influence of blade loading on the development and interaction of secondary flow structures within an annular compressor stator cascade (CSC) is examined, and the experimentally obtained results give detailed insight on the effect of the incidence of the clearance vortex, horseshoe vortex, and passage vortex.
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Prestall Instability in Axial Flow Compressors
TL;DR: In this article, a set of pressure transducers evenly distributed along the circumference surface mounted in the casing near the rotor tip leading edges measured the time-resolved wall pressures simultaneously to an array of transducers recording the chordwise static pressures.
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Advanced Stereo High-Speed PIV in an Annular Cascade without Clearance: Evidences of Rotating Instability
Julija Peter,Benjamin Pardowitz,Mario Eck,Lars Enghardt,Dieter Peitsch,Paul Uwe Thamsen +5 more
- 01 Apr 2017
TL;DR: In this article, an advanced stereo high speed particle image velocimetry (PIV) was applied to an annular compressor cascade without clearance to visualize the predominant flow mechanism corresponding to rotating instability.
Advanced application of a sublayer fence probe in highly instationary turbomachinery flows: observations on prestall instabilities
TL;DR: In this paper, an analytical model of the angular dependent pressure difference is employed to derive information about the flow direction and its velocity, and a computational preston tube approach has been used to calibrate the surface fence probe with regard to a flow velocity to be assigned to half of the fence height.
Physics of Prestall Propagating Disturbances in Axial Compressors and Their Potential as a Stall Warning Indicator
TL;DR: In this article, it was demonstrated that the prestall instability characterised by discrete flow disturbances can be clearly assigned to the subject of rotating instability, and a new stall indicator was developed by applying statistical methods to the unsteady pressure signal measured over the rotor blade tips, thus granting a better control of the safety margin.