Results 231 to 240 of about 1,436 (263)
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Volume 9: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B and C, 2009
Several passive and active techniques were studied and developed by compressor designers with the aim of improving the aerodynamic behavior of compressor blades by reducing, or even eliminating, flow separation. Fluidic-based methods, in particular, were investigated for a long time, including both steady and unsteady suction, blowing and oscillating ...
Benini E., Biollo R., Ponza R.
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Several passive and active techniques were studied and developed by compressor designers with the aim of improving the aerodynamic behavior of compressor blades by reducing, or even eliminating, flow separation. Fluidic-based methods, in particular, were investigated for a long time, including both steady and unsteady suction, blowing and oscillating ...
Benini E., Biollo R., Ponza R.
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Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2014
Aerodynamic performance of a centrifugal compressor is investigated under various casing treatment configurations of stepped tip gap type, numerically. This technique is introduced as an effective method for improvement of compressor stall margin and consequent enhancement of the compressor overall performance.
Reza Taghavi-Zenouz +2 more
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Aerodynamic performance of a centrifugal compressor is investigated under various casing treatment configurations of stepped tip gap type, numerically. This technique is introduced as an effective method for improvement of compressor stall margin and consequent enhancement of the compressor overall performance.
Reza Taghavi-Zenouz +2 more
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Calculation of Stall Margin Enhancement With Micro-Tip Injection in an Axial Compressor
Journal of Fluids Engineering, 2019Although steady micro-injection is experimentally validated as an attractive method in improving the stall margin of axial compressors, up to now a fast prediction of stall boundary remains some way off. This investigation is to propose such a prediction model.
Xiaohua Liu +6 more
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Effects of recessed blade tips on stall margin in a transonic axial compressor
Aerospace Science and Technology, 2016Abstract In this paper, a recessed blade tip was applied to a transonic axial compressor in expectation of increasing the stable operating range. The internal flow has been calculated by a commercial flow solver for different recess cavities on the blade tip and the predicted performances for each case have been compared with one another.
Young-Jin Jung +4 more
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Aerospace Science and Technology, 2018
Abstract This paper presents the stall margin enhancement of a novel casing treatment subjected to circumferential pressure inlet distortion. Experimental results are carried out on a low-speed compressor. Experimental results show that the stall margin of the test compressor is gravely narrowed by circumferential pressure inlet distortion.
Xu Dong +3 more
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Abstract This paper presents the stall margin enhancement of a novel casing treatment subjected to circumferential pressure inlet distortion. Experimental results are carried out on a low-speed compressor. Experimental results show that the stall margin of the test compressor is gravely narrowed by circumferential pressure inlet distortion.
Xu Dong +3 more
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Reliability-based design optimization of axial compressor using uncertainty model for stall margin
Journal of Mechanical Science and Technology, 2011Reliability-based design optimization (RBDO) of the NASA stage 37 axial compressor is performed using an uncertainty model for stall margin in order to guarantee stable operation of the compressor. The main characteristics of RBDO for the axial compressor are summarized as follows: First, the values of mass flow rate and pressure ratio in stall margin ...
Sangwon Hong +6 more
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An Experimental Investigation on the Mechanism of Stall Margin Improvement of Casing Treatment
Volume 1: Aircraft Engine; Turbomachinery, 1985A single-rotor axial flow compressor and a two-dimensional cascade have been tested with and without casing treatment. A three-dimensional flow mechanism of the onset of rotating stall is suggested. It gives good reason to explain the mechanism of stall-margin improvement of casing treatment.
Zhuang Ping +3 more
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General Aviation Technology Conference, 1986
Arthur W. Hoadley, Raymond S. VanderBok
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Arthur W. Hoadley, Raymond S. VanderBok
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Stall margin indicator development
Aircraft Systems, Design and Technology Meeting, 1986A. HOADLEY, R. VANDERBOK
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