Influence of Gas Content on Performance Effect on Shunt Vane Type Aviation Fuel Pump

다국어 초록 (Multilingual Abstract)

In order to study the flow law of shunt vane type aviation fuel pump under the condition of gas-liquid mixture transportation, based on the RNG K-ε turbulence model and the Euler-Euler non-uniformity model, using the ANSYS CFX software to calculate an aviation fuel pump under different gas content conditions, and analyzing the flow of the fuel pump and the pressure law of the blade pressure. The research shows that the gas phase is mainly distributed in the front section of the long blade suction surface and the back section of the short blade pressure surface. The increased gas content will result in increased liquid velocity in the pump, which makes the gas phase gradually develop towards the suction surface of long and short blades and diffuse to the impeller flow path. The gas content mainly affects the pressure surface load of the fuel pump blades. The pressure load curve fluctuates at the relative position of the short blade (0.5-0.6) and long blade (0.3-0.6) as well as at the end of the blade and decreases with the increase in gas content. The change of pressure fluctuation of the blade is mainly reflected at the junction of long and short blades, and the pressure fluctuation amplitude of the front section of the short blade and middle section of the long blade fluctuates greatly. With the increase in gas content, the pressure fluctuation amplitude at each monitoring point reduces. The research results can provide some reference for the design of aviation fuel pumps.

참고문헌 (Reference)

1 Minemura, K, "Three-Dimensional Calculation of Air-Water Two-Phase Flows in a Centrifugal Pump Based on a Bubbly Flow Model with Fixed Cavity" 37 (37): 726-735, 1994

2 Wang, Q. F, "Study on the effect of cavitation on the performance of split vane aviation fuel pump" 36 (36): 21-29, 2021

3 Liu, S. Q, "Study on centrifugal pump as main fuel pump of Aeroengine" 32 (32): 43-45, 2006

4 Toshifumi, W, "Rotating Choke and Choked Surge in an Axial Pump Impeller" 2 (2): 232-238, 2009

5 Wang, W. J, "Research status and Prospect of centrifugal aviation fuel pump" 48 (48): 59-63, 2020

6 Yakhot, V. V, "Renormalization-group analysis of turbulence" 57 (57): 1722-1724, 1986

7 Wang, W. J, "Optimization design of centrifugal aviation fuel pump based on splitter blade technology" 54 (54): 557-562, 2021

8 Liu, R. H, "Numerical simulation of internal flow in centrifugal pump under gas-liquid two-phase flow" 33 (33): 661-666, 2015

9 Yuan, S. Q, "Numerical simulation of gas-liquid two-phase flow in centrifugal pump based on music model" 39 (39): 325-330, 2021

10 Li, J, "Multi objective optimization design and simulation analysis of fuel centrifugal pump" 42 (42): 666-674, 2021

11 Jiang, X, "Miniaturization of Bubbles by Shock Waves in Gas-Liquid Two-phase Flow in the Venturi Tube" 30 (30): 1068-1076, 2021

12 Patrick Dupont ; Annie-Claude Bayeul-Lainé ; Antoine Dazin ; Gérard Bois ; Olivier Roussette ; Qiaorui Si, "Leakage Flow Influence on SHF pump model performances" 한국유체기계학회 8 (8): 193-201, 2015

13 Li, G. D, "Internal flow pattern and stress analysis of centrifugal pump under gas-liquid two-phase condition" 34 (34): 369-374, 2016

14 Si, Q. R, "Experimental study on internal flow induction characteristics of centrifugal pump under gas-liquid two-phase inflow" 38 (38): 15-21, 2019

15 Kobayashi, K, "Computational Fluid Dynamics of Cavitating Flow in Mixed Flow Pump with Closed Type Impeller" 3 (3): 113-121, 2010

16 Xiong, Y. H, "Cavitation performance analysis of aviation fuel pump based on agent model" 37 (37): 2952-2960, 2016

17 Levy, S, "Application of Mixing Length Theory to Wavy Turbulent Liquid—Gas Interface" 103 (103): 492-500, 1981

18 Zhong, K. G, "A novel complex network-based deep learning method for characterizing gas-liquid two-phase flow" 18 (18): 259-268, 2021