Design of an Aspirated Compressor Stator by Means of DoE

Siemann, Jan; Seume, Joerg R.

doi:10.1115/gt2015-42474

Cited by 9 publications

(4 citation statements)

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“…Siemann and Seume designed a compressor diffuser using DoE to see the effects of four parameters and their interactions on the blade efficiency [15].…”

Section: Introductionmentioning

confidence: 99%

Optimization of a Centrifugal Compressor Using the Design of Experiment Technique

Mojaddam

Pullen

2019

Applied Sciences

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Centrifugal compressor performance is affected by many parameters, optimization of which can lead to superior designs. Recognizing the most important parameters affecting performance helps to reduce the optimization process cost. Of the compressor components, the impeller plays the most important role in compressor performance, hence the design parameters affecting this component were considered. A turbocharger centrifugal compressor with vaneless diffuser was studied and the parameters investigated included meridional geometry, rotor blade angle distribution and start location of the main blades and splitters. The diffuser shape was captured as part of the meridional geometry. Applying a novel approach to the problem, full factorial analysis was used to investigate the most effective parameters. The Response Surface Method was then implemented to construct the surrogate models and to recognize the best points over a design space created as based on the Box-Behnken methodology. The results highlighted the factors that affected impeller performance the most. Using the Design of Experiment technique, the model which optimized both efficiency and pressure ratio simultaneously delivered a design with 3% and 11% improvement in each respectively in comparison to the initial impeller at the design point. Importantly, this was not at the expense of sacrificing range, of critical concern in compressor design.

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“…Siemann and Seume designed a compressor diffuser using DoE to see the effects of four parameters and their interactions on the blade efficiency [15].…”

Section: Introductionmentioning

confidence: 99%

Optimization of a Centrifugal Compressor Using the Design of Experiment Technique

Mojaddam

Pullen

2019

Applied Sciences

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“…A 3D numerical simulation showed that the multistage aspirated compressor achieved a total pressure ratio of 6.03 at a tip speed of 370 m/s with an efficiency of 0.8636. Based on design of experiments correlation factors, Siemann and Seume 21 optimized the aspirated stator in a four-stage high-speed axial compressor, and the optimization result showed an increase in the overall isentropic efficiency of 1.3% to 0.9098, whereas the total pressure ratio increased by 0.08 to 2.08.…”

Section: Introductionmentioning

confidence: 99%

Aerodynamic optimization design of aspirated highly loaded fan stage

Zhang

Zhou

Cui

2018

Proceedings of the Institution of Mechanical Engineers, Part G:

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In this paper, an aerodynamic design method for an aspirated compressor/fan is developed. In the S2 through-flow design, the loss feedback is used to solve the inapplicability of the conventional loss model. In S1 profile design, an optimization design method is constructed in which the profile and the suction flow parameters are simultaneously handled as design parameters to couple the optimization design. A 3D optimization method is used to modify the profiles at the hub and tip of the rotor blade and the sweep and lean of the stator blade. An aspirated highly loaded fan stage (load coefficient of 0.69) was designed using the design method. A flow field simulation shows that at the design point, with a modest suction flow (4.84% of the inlet mass flow), very high isentropic efficiency (0.9213) is achieved, and the total pressure ratio (3.445) achieves its design goal (3.40), but the mass flow rate of the designed fan stage is 6.2% lower than the design goal. From the comparisons between the 2D flow fields on the S1 stream surfaces and the 3D flow fields at the corresponding blade spans, it is concluded that the flow presents nearly a form of a 2D S1 stream surface at most of the spans, and the 2D design method which is based on the S1/S2 stream surface in this paper is effective. Moreover, the flow is analyzed around the rotor root of the aspirated rotor, revealing a weak flow capacity in that area. This result suggests that desirable flow might not be set up when the designed profile has a large camber at the rotor blade root because the total pressure ratio cannot be improved without compromising the static pressure ratio.

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“…1 Furthermore, by introducing oscillating momentum coupled with flow instability, more efficient control effects could be obtained. 2 A majority of current researches about active separation control (both steady and periodic) in compressor cascades, such as synthetic jets, 3 plasma actuation, 4 boundary layer suction (BLS), [5][6][7][8][9] and jet flow 10 are based on different forms of momentum transfer.…”

Section: Introductionmentioning

confidence: 99%

“…In subsequent work by Merchant et al, 6 a single aspirated compressor stage producing pressure ratio of 3.4 at the tip speed of 457.2 m/s with 3.5% inlet mass flow rate steadily aspirated was designed and validated. Following studies 5,[7][8][9] were dedicated to exploiting the potential of this method for significant impact on axial compressors.…”

Section: Introductionmentioning

confidence: 99%

Proper orthogonal decomposition analysis of boundary layer oscillating aspiration controlling separation flows in two-dimensional compressor cascades

Cai

Ding

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part G:

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Vortex structures of the separation flow fields in two-dimensional compressor cascades controlled by the boundary layer oscillating suction are numerically investigated. The proper orthogonal decomposition method is adopted to present the variation of characteristics owned by large-scale vortices. It is found that introducing unsteady excitations with proper frequencies into the steady aspiration results in a more effective control effect and the optimal oscillation frequency should be in line with the characteristic frequencies of the steady aspirated flow field. The separation flows can be decomposed in to several basic structures with the dominant one being in the manner of Karman vortex street regardless of the control method adopted. The boundary layer oscillating suction not only alleviates the separation by removing low-energy fluid, but also intensifies the harmonic flow element represented by proper orthogonal decomposition modes with others suppressed. The well-organized vortex shedding process could contribute to the loss reduction to some extent.

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Design of an Aspirated Compressor Stator by Means of DoE

Cited by 9 publications

References 0 publications

Optimization of a Centrifugal Compressor Using the Design of Experiment Technique

Optimization of a Centrifugal Compressor Using the Design of Experiment Technique

Aerodynamic optimization design of aspirated highly loaded fan stage

Proper orthogonal decomposition analysis of boundary layer oscillating aspiration controlling separation flows in two-dimensional compressor cascades

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