High Turning Compressor Tandem Cascade for High Subsonic Flows, Part 1: Aerodynamic Design

Hoeger, Martin; Baier, Ralf-D.; Fischer, Susanne; Neudorfer, J.

doi:10.2514/6.2011-5601

Cited by 25 publications

(12 citation statements)

References 8 publications

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“…The works of Hoeger and Baier (2011) and Müller et al (2011) presented an aerodynamic design for a high turning compressor tandem cascade and the respective investigations, both numerically and experimentally. The analysis showed a high sensitivity to varying inlet Mach numbers.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of a Transonic Compressor with Variable Stator Vanes in Tandem Arrangement

Foret¹,

Franke²,

Schiffer³

et al. 2020

Proceedings of Global Power &Amp; Propulsion Society

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This paper investigates the effects of a 1.5-stage transonic axial compressor with a variable tandem stator arrangement. The experiments were carried out at the transonic research compressor rig at Technical University of Darmstadt. The test rig represents a front stage highpressure compressor of jet engines. Using extensive instrumentation, the global performance is analyzed. A new designed compressor stage has been commissioned, including a BLISK rotor and tandem stator vanes with variable stagger angles. In comparison with a reference stage using a conventional stator design, the new stator design enables a higher aerodynamic stator vane loading. Therefore an optimized stage loading is pursued, leading to an increased work coefficient whilst retaining the operating range of the stage. The experimental study reveals several effects of the optimized compressor stage, considering both, performance and corresponding aerodynamics. The operating range with varying VIGV-VSV schedules differs to the reference case. At nominal tandem stator vane closure, stage pressure rise is increased for the whole operating range. Comparing the stage exit aerodynamics of the tandem and reference stator at design speed, distinct differences appear. In conclusion, the conducted experimental investigations prove potential capabilities of transonic compressors, enabling optimized stage loading.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigation of a Transonic Compressor with Variable Stator Vanes in Tandem Arrangement

Foret¹,

Franke²,

Schiffer³

et al. 2020

Proceedings of Global Power &Amp; Propulsion Society

View full text Add to dashboard Cite

show abstract

“…subsonic or transonic compressors. Subsonic applications have shown best results if the front blade has a longer chord length compared to the aft blade [3,4,5]. In contrast, configurations for the transonic regime perform best if the aft blade has an increased chord length compared to the front blade [6,7].…”

Section: Introduction and Objectivementioning

confidence: 99%

Recent Insights into the Flow Topology Around Highly Loaded Tandem Vanes

Heinrich¹,

Peitsch²

2019

Proceedings of Global Power &Amp; Propulsion Society

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A large share in the weight of aero engines is attributed to the compressor module. Weight savings are crucial for the increase of overall propulsion system efficiencies. This has led to a steady reduction of stage counts in axial compressors, implying a constant increase in stage pressure ratios. The socalled tandem blade configuration represents an innovative approach. The blades within a row are being replaced by pairs of blades placed successively in the streamwise direction, leaving a slot between the front blade's trailing edge and the rear blade's leading edge. Thus, separation from the blade suction side can be shifted towards higher incidences.

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“…Tandem blade, a new design method of high-loading blades of modern compressors, can achieve higher loads with lower losses, effectively improve the flow field structure and control the flow separation. 18,19 Many publications about tandem blades prove tandem blades can have an excellent performance compared to a single blade with similar geometry. [20][21][22] Hence, a lot of researches were carried out on how to design excellent compressor tandem blades.…”

Section: Introductionmentioning

confidence: 99%

Adaptive particle swarm optimization with population diversity control and its application in tandem blade optimization

Song

Liu

Cheng

2018

Proceedings of the Institution of Mechanical Engineers, Part C:

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This paper proposes a new variant of particle swarm optimization, namely adaptive particle swarm optimization with population diversity control (APSO-PDC), to improve the performance of particle swarm optimization. APSO-PDC is formulated based on adaptive selection of particle roles, population diversity control, and adaptive control of parameters. The adaptive selection of particle roles which combines the evolutionary state and dynamic particle state estimation method will sort the particles into three roles to let different particles execute different search tasks during optimization process. The adaptive control of parameters which is created based on the evolutionary state and particle roles encourages the exploitation ability and enhances the algorithm’s convergence speed. The population diversity control which combines comprehensive learning strategy of the comprehensive learning particle swarm optimizer with evolutionary state to update the individual best position strengthens exploration ability and thus increases the algorithm’s robustness toward the premature convergence issue. The performance of APSO-PDC is comprehensively evaluated by 21 unimodal and multimodal functions with or without rotation. The results indicate APSO-PDC has more preferable searching accuracy, searching reliability, and convergence speed than the other well-established particle swarm optimization variants. Finally, compared with other six particle swarm optimization variants, APSO-PDC shows satisfactory performance in optimizing tandem blade. This excellent performance proves that APSO-PDC has a better control of swarm exploration and exploitation abilities.

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High Turning Compressor Tandem Cascade for High Subsonic Flows, Part 1: Aerodynamic Design

Cited by 25 publications

References 8 publications

Experimental Investigation of a Transonic Compressor with Variable Stator Vanes in Tandem Arrangement

Experimental Investigation of a Transonic Compressor with Variable Stator Vanes in Tandem Arrangement

Recent Insights into the Flow Topology Around Highly Loaded Tandem Vanes

Adaptive particle swarm optimization with population diversity control and its application in tandem blade optimization

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