Structural and Fluid Flow Analysis of Subsonic Aircraft jet Engine Centrifugal Compressor

Agney, Amrit; Singh, Suraj Kumar; Srinivas, G

doi:10.1016/j.matpr.2018.06.312

Cited by 4 publications

(3 citation statements)

References 8 publications

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“…Compressors have an essential role in many fields such as gasoline, chemicals, refrigeration, fuel cells, and storage (Guo et al 2021, Zhang et al 2020. Because centrifugal compressors have a low cost with higher single-stage pressure ratios, they are still widely used in the aviation field for small aircraft engines, particularly for helicopters and auxiliary power units for all types of aircraft (Agney et al 2018, Krain 2005. A variable inlet guide vane (VIGV) was first applied to adjust centrifugal compressor operation in the 1950s.…”

Section: Introductionmentioning

confidence: 99%

Impact of Slots on the Aerodynamic Performance of the Variable Inlet Guide Vane Cascade of a Centrifugal Compressor

Xin

Liu²,

Zhao³

et al. 2023

JAFM

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This study reconstructed the flow field of a symmetrical variable inlet guide vane in a centrifugal compressor through the passive control method of vane slots. Based on the high-fidelity numerical simulation model verified by experiments, the influence of different slot forms on the flow field was investigated, and the passive control mechanism was revealed. The results demonstrated that the vane slot method can effectively suppress the suction surface separation and broaden the range of low-loss incidence angles. Overall, the 50_30 slotted vane achieves the best flow field control, with a 65.6% reduction in the total pressure loss coefficient and a 2.3° reduction in the deviation angle, respectively, at a 25° incidence angle. The linear characteristics of the pre-swirl grade variation curve with variable inlet guide vane incidence angles are also improved. Furthermore, changing the slot outlet angle has the most significant influence on the aerodynamic performance as it changes the throat width of the location, thereby affecting the flow rate and momentum of the jet. Finally, the impact of the velocity varies in the first self-similarity region on the slotted vane. The results indicate that, in contrast to the baseline vane, the suppression effect of the slot jet on the flow separation improves with the inlet velocity, whereas the deviation angle of the slotted vane declines with the inlet velocity. Meanwhile, the higher the incoming flow velocity, the better the slotted jet can inhibition of flow separation.

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Section: Introductionmentioning

confidence: 99%

Impact of Slots on the Aerodynamic Performance of the Variable Inlet Guide Vane Cascade of a Centrifugal Compressor

Xin

Liu²,

Zhao³

et al. 2023

JAFM

View full text Add to dashboard Cite

show abstract

“…Tang [2] et al optimized the aerodynamic robustness of a centrifugal compressor impeller with uncertainty quantification under random conditions; with the help of the rapid development of computational fluid dynamics and numerical analysis theory. Amrit Agney [3] et al used CFD software to analyze the flow field of the centrifugal compressor of a subsonic aircraft jet engine. Javed et al [4] used the response surface method combined with the Monte Carlo (MC) method to analyze and optimize the centrifugal impeller with consideration of the manufacturing uncertainty of the centrifugal impeller.…”

Section: Introductionmentioning

confidence: 99%

Design and Simulation of a New Type of Speed-ratio Bladeless Supercharger Mechanism

Zhao

Wang

Zhu

2023

J. Phys.: Conf. Ser.

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Aiming at the problems of complex machining and impeller structural strength of traditional centrifugal compressors, a new speed-ratio bladeless supercharging mechanism is proposed. The results show that the system pressure of the new structure increases with the increase of the rotating speed of the disk; while the maximum pressure of the outer cavity and the maximum pressure of the system change in a curve with the difference of the disk wall clearance, the diameter of the disk and the number of pipes in the disk. Based on the results of theoretical and simulation analysis, a bladeless pressurized structure test platform was established. The test results show that the working medium pressurization measured at the outlet of the mechanism is 0.1Mpa, and the experimental results have a high degree of agreement with the theoretical analysis.

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“…It is, for this reason, are less bulky compared to piston compressors. (Zhang, 2016), (Liu et al, 2019), (Agney et al, 2018), (Niknam et al, 2018), (Meroni et al, 2018), (Marjani and Baghmolai, 2016) and (Eker and Kara, 2003). Consequently, a reasonable comprehension control of these systems is necessary to enhance their productivity and reduce their operating cost.…”

Section: Introductionmentioning

confidence: 99%

Internal stability improvement of a natural gas centrifugal compressor system based on a new optimal output feedback controller using block transformation and grey wolf optimizer

Nail

Bekhiti

Puig

2021

Journal of Natural Gas Science and Engineering

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Structural and Fluid Flow Analysis of Subsonic Aircraft jet Engine Centrifugal Compressor

Cited by 4 publications

References 8 publications

Impact of Slots on the Aerodynamic Performance of the Variable Inlet Guide Vane Cascade of a Centrifugal Compressor

Impact of Slots on the Aerodynamic Performance of the Variable Inlet Guide Vane Cascade of a Centrifugal Compressor

Design and Simulation of a New Type of Speed-ratio Bladeless Supercharger Mechanism

Internal stability improvement of a natural gas centrifugal compressor system based on a new optimal output feedback controller using block transformation and grey wolf optimizer

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