Rotating Stall Control in a High-Speed Stage With Inlet Distortion: Part II — Circumferential Distortion

Spakovszky, Z. S.; Schalkwyk, C. M. van; Weigl, Harald J.; Paduano, James D.; Suder, Kenneth L.; Bright, Michelle M.

doi:10.1115/98-gt-265

Cited by 19 publications

(24 citation statements)

References 13 publications

(18 reference statements)

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“…It is clear that when the amplitude of perturbation is larger, then the compressor loses stability at larger γ. Numerical simulations of the three state MooreGreitzer model (8) confirm this observation (see Figure 2). Lettingζ = ζ − ζ 0 , the linearization of system (16) in the neighborhood of periodic solution ζ 0 = Ae i(ωpt+φ) iṡ…”

Section: Remark 42supporting

confidence: 80%

“…Therefore as t → ∞, we get z 0 (t) = ζ 0 (t) = Ae iωpt+φ . The upper figure in Figure 4 shows the comparison of amplitudes of periodic solutions from the theoretic analysis of the normal form (formula 18) and those from numerical simulations of the three state Moore-Greitzer Model (8). The lower figure shows the relative errors computed from (21).…”

Section: Remark 42mentioning

confidence: 96%

“…When u(t) = 0, it has been found that β and γ are bifurcation parameters for the system (8). To the right side of the peak is the normal operating range of the compressor, whereas to the left of it the compressor will either go into rotating stall or surge depending on the values of the bifurcation parameters.…”

Section: Moore-greitzer Model With Pressure Perturbationsmentioning

confidence: 98%

“…As a result, much research has been done using both experimental techniques and theoretic analysis. [6][7][8][9]. In this paper, we consider a specific perturbation form: the periodic perturbation.…”

Section: Introductionmentioning

confidence: 99%

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Rotating stall inception in axial compressors under periodic perturbations

Dong

Wang

2013

2013 25th Chinese Control and Decision Conference (CCDC)

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The inception to rotating stall in axial compressors with inlet distortions is theoretically investigated by studying the three state Moore-Greitzer model with periodic perturbations. The model is transformed into a normal form by using the center manifold theory. Based on the normal form, we derived analytically the periodic solutions as well as their stability boundaries. When the amplitudes of the perturbations are small, the theoretic results predict quantitatively well to those from numerical simulations of the full model.

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Section: Remark 42supporting

confidence: 80%

Section: Remark 42mentioning

confidence: 96%

Section: Moore-greitzer Model With Pressure Perturbationsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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Rotating stall inception in axial compressors under periodic perturbations

Dong

Wang

2013

2013 25th Chinese Control and Decision Conference (CCDC)

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“…Most of the recent tip blowing studies still have the disadvantage of relying on an external air source [9][10][11][12][13]. In the present study, the tip blowing is part of a recirculating casing treatment, whose recirculation is only driven by the pressure gradient across the rotor [6].…”

Section: Introductionmentioning

confidence: 99%

Parametric Study of the Bleed Position in a Tip Blowing Casing Treatment

Guinet¹,

Bettrich²,

Gümmer³

2014

50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference

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Stability issues are often restricting the design space of axial-flow compressors. Casing treatments have shown the ability to enhance stability on existing designs in a late design phase. Prior studies have identified the positioning of the casing treatment as an important parameter for both stability and overall efficiency. Particularly for axial casing treatments, the downstream position of the fluid removal was found to be relevant. Within the present study the focus is put on a tip blowing casing treatment consisting of an axially and circumferentially discrete bleed port connected to an upstream injection port. For this kind of casing treatment, an accurate positioning of the fluid removal has high importance. Therefore, in the present study a parametric variation of the bleed port's axial position is carried out at design speed. Minimizing losses at sufficient stall margin improvement requires recirculation mass flows dependent on operating point. In support of that goal of mass flow self-regulation criteria for the fluid removal port position are derived. The analysis of the flow field, of the pressure distribution and of the shock-vortex-interaction help to identify an ideal position. The study is carried out on the isolated rotor of a 1.5 stage research compressor arrangement. NomenclatureCT = casing treatment TBCT = recirculating tip blowing CT CSCT = circumferential-slot CT ASCT = axial-slot CT CTDI = CT duct inlet CTDO = CT duct outlet SC = smooth casing DP = design point operating condition PE = peak efficiency operating condition NS = near stall operating condition SM = stall margin (V)IGV = (variable) inlet guide vane (U)RANS = (unsteady) reynolds averaged navier-stokes y + [-] = non-dimensional wall distance [Pa] = static pressure [Pa] = total pressure ̇ [ / ] = recirculation mass flow rate Π [-] = total pressure ratio [K] = total temperature Ma [-] = Mach number [-] = heat capacity ratio [m²] = nozzle cross section R [J/kg/K] = gas constant Downloaded by UNIVERSITY OF QUEENSLAND on July 30, 2015 | http://arc.aiaa.org |

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Mechanism of Affecting the Performance and Stability of an Axial Flow Compressor with Inlet Distortion

Zhang

Dong

et al. 2021

J. Therm. Sci.

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Rotating Stall Control in a High-Speed Stage With Inlet Distortion: Part II — Circumferential Distortion

Cited by 19 publications

References 13 publications

Rotating stall inception in axial compressors under periodic perturbations

Rotating stall inception in axial compressors under periodic perturbations

Parametric Study of the Bleed Position in a Tip Blowing Casing Treatment

Mechanism of Affecting the Performance and Stability of an Axial Flow Compressor with Inlet Distortion

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