压比对文氏管汽蚀动态过程演变的影响

doi:10.7527/S1000-6893.2021.25212

Abstract

Abstract: Alcohol cavitation experiments were carried out on a semi-rectangular Venturi tube based on high-speed photography and high-frequency pressure measurement technology.The flow field structure and high-frequency pressure data of the cavitation area were obtained via the standard deviation method, and the dynamic evolution law and pressure oscillation characteristics of the cavitation area were studied based on the picture and pressure signals.The results show that the smaller the pressure ratio is, the more fully the cavitation region develops, and there is a negative correlation between the length of cavitation region and the pressure ratio.The dynamic characteristics of the cavitation region are dominated by the turbulence fluctuation and re-entrant jet mechanism.With a high pressure ratio, the turbulence fluctuation dominates the dynamic behavior of the cavitation zone which can be divided into the developing zone, fusion zone and collapse zone.When the pressure ratio is small, the re-entrant jet dominates the dynamic behavior of the cavitation region, and the cavitation region can be divided into the developing zone, recirculation zone and collapse zone.The development zone is stable and can inhibit the transmission of the downstream pressure wave toward the upstream direction; the turbulence fluctuation and re-entrant jet will cause the formation of falling cloud clusters in the rear area of the development zone, thereby bringing pressure oscillation to the downstream area, with the main frequency of the oscillation exhibiting characteristics of the frequency band; when the back pressure is low, the falling cloud cluster will move further downstream in the diffusion zone, and the larger reverse pressure gradient will cause retrogradation of the falling cloud cluster, forming a local recirculation zone in the diffusion section.

Key words: semi-rectangular Venturi tube, cavitation, visualization, dynamic process, pressure ratio, liquid rocket engine

CLC Number:

V434

LIANG Tao, CUI Peng, CHENG Peng, LI Qinglian, ZHANG Bin, SONG Jie. Influence of pressure ratio on evolution of cavitation dynamic process in Venturi tube[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(3): 125212-125212.

References

[1] LIANG J, LUO X H, LIU Y S, et al.A numerical investigation in effects of inlet pressure fluctuations on the flow and cavitation characteristics inside water hydraulic poppet valves[J].International Journal of Heat and Mass Transfer, 2016, 103:684-700.
[2] JABLONSKÁ J, MAHDAL M, KOZUBKOVÁ M.Spectral analysis of pressure, noise and vibration velocity measurement in cavitation[J].Measurement Science Review, 2017, 17(6):250-256.
[3] FRANC J P, MICHEL J M.Fundamentals of cavitation[M].Dordrecht:Kluwer Academic Publishers, 2004:119-132.
[4] KRELLA A K, KRUPA A.Effect of cavitation intensity on degradation of X6CrNiTi18-10 stainless steel[J].Wear, 2018, 408-409:180-189.
[5] DULAR M.Hydrodynamic cavitation damage in water at elevated temperatures[J].Wear, 2016, 346-347:78-86.
[6] GAGOL M, PRZYJAZNY A, BOCZKAJ G.Wastewater treatment by means of advanced oxidation processes based on cavitation-A review[J].Chemical Engineering Journal, 2018, 338:599-627.
[7] SURYAWANSHI P G, BHANDARI V M, SOROKHAIBAM L G, et al.Solvent degradation studies using hydrodynamic cavitation[J].Environmental Progress & Sustainable Energy, 2018, 37(1):295-304.
[8] HILARES R T, RAMOS L, DA SILVA S S, et al.Hydrodynamic cavitation as a strategy to enhance the efficiency of lignocellulosic biomass pretreatment[J].Critical Reviews in Biotechnology, 2018, 38(4):483-493.
[9] ŠARC A, STEPIŠNIK-PERDIH T, PETKOVŠEK M, et al.The issue of cavitation number value in studies of water treatment by hydrodynamic cavitation[J].Ultrasonics Sonochemistry, 2017, 34:51-59.
[10] LONG X P, ZHANG J Q, WANG J, et al.Experimental investigation of the global cavitation dynamic behavior in a Venturi tube with special emphasis on the cavity length variation[J].International Journal of Multiphase Flow, 2017, 89:290-298.
[11] SATO K, HACHINO K, SAITO Y.Inception and dynamics of traveling-bubble-type cavitation in a Venturi[J].Transactions of the Japan Society of Mechanical Engineers, 2004, 70(689):69-76.
[12] RUDOLF P, HUDEC M, GRÍGER M, et al.Characterization of the cavitating flow in converging-diverging nozzle based on experimental investigations[J].EPJ Web of Conferences, 2014, 67:02101.
[13] ABDULAZIZ A M.Performance and image analysis of a cavitating process in a small type Venturi[J].Experimental Thermal and Fluid Science, 2014, 53:40-48.
[14] SAYYAADI H.Instability of the cavitating flow in a Venturi reactor[J].Fluid Dynamics Research, 2010, 42(5):055503.
[15] ZHU J K, XIE H J, FENG K S, et al.Unsteady cavitation characteristics of liquid nitrogen flows through Venturi tube[J].International Journal of Heat and Mass Transfer, 2017, 112:544-552.
[16] TOMOV P, KHELLADI S, RAVELET F, et al.Experimental study of aerated cavitation in a horizontal Venturi nozzle[J].Experimental Thermal and Fluid Science, 2016, 70:85-95.
[17] KNAPP R T.Recent investigations of the mechanics of cavitation and cavitation damage[J].Transactions of the ASME, 1955, 1(5):1045-1054.
[18] KAWANAMI Y, KATO H, YAMAGUCHI H, et al.Mechanism and control of cloud cavitation[J].Journal of Fluids Engineering, 1997, 119(4):788-794.
[19] GANESH H, MÄKIHARJU S A, CECCIO S L.Interaction of a compressible bubbly flow with an obstacle placed within a shedding partial cavity[J].Journal of Physics:Conference Series, 2015, 656:012151.
[20] WANG J, WANG L Y, XU S J, et al.Experimental investigation on the cavitation performance in a Venturi reactor with special emphasis on the choking flow[J].Experimental Thermal and Fluid Science, 2019, 106:215-225.
[21] JAHANGIR S, HOGENDOORN W, POELMA C.Dynamics of partial cavitation in an axisymmetric converging-diverging nozzle[J].International Journal of Multiphase Flow, 2018, 106:34-45.
[22] 赵东方.液氮文氏管汽蚀动态特性可视化实验研究[D].杭州:浙江大学, 2016:36-39. ZHAO D F.Experimental observation on dynamic characteristic of liquid nitrogen cavitation in Venturi tube[D].Hangzhou:Zhejiang University, 2016:36-39(in Chinese).
[23] TOMOV P, CROCI K, KHELLADI S, et al.Experimental and numerical investigation of two physical mechanisms influencing the cloud cavitation shedding dynamics[C]//9th International Symposium on Cavitation, 2016.
[24] CHEN G H, WANG G Y, HU C L, et al.Combined experimental and computational investigation of cavitation evolution and excited pressure fluctuation in a convergent-divergent channel[J].International Journal of Multiphase Flow, 2015, 72:133-140.
[25] 龙新平, 王炯, 左丹, 等.文丘里管不同空化阶段空化不稳定特性的试验研究[J].机械工程学报, 2018, 54(2):209-215. LONG X P, WANG J, ZUO D, et al.Experimental investigation of the instability of cavitation in Venturi tube under different cavitation stage[J].Journal of Mechanical Engineering, 2018, 54(2):209-215(in Chinese).
[26] WU X J, MAHEUX E, CHAHINE G L.An experimental study of sheet to cloud cavitation[J].Experimental Thermal and Fluid Science, 2017, 83:129-140.
[27] WANG C C, HUANG B, WANG G Y, et al.Unsteady pressure fluctuation characteristics in the process of breakup and shedding of sheet/cloud cavitation[J].International Journal of Heat and Mass Transfer, 2017, 114:769-785.
[28] 刘上, 陈炜, 张兴军, 等.文氏管非定常空化流动可视化实验研究[J].中国科学:技术科学, 2019, 49(2):189-198. LIU S, CHEN W, ZHANG X J, et al.Visualization experimental study for Venturi tube unsteady cavitating flows[J].Scientia Sinica (Technologica), 2019, 49(2):189-198(in Chinese).
[29] DULAR M, KHLIFA I, FUZIER S, et al.Scale effect on unsteady cloud cavitation[J].Experiments in Fluids, 2012, 53(5):1233-1250.
[30] DANLOS A, RAVELET F, COUTIER-DELGOSHA O, et al.Cavitation regime detection through Proper Orthogonal Decomposition:Dynamics analysis of the sheet cavity on a grooved convergent-divergent nozzle[J].International Journal of Heat and Fluid Flow, 2014, 47:9-20.
[31] DULAR M, BACHERT B, STOFFEL B, et al.Relationship between cavitation structures and cavitation damage[J].Wear, 2004, 257(11):1176-1184.
[32] SATO K, TANADA M, MONDEN S, et al.Observations of oscillating cavitation on a flat plate hydrofoil[J].JSME International Journal Series B, 2002, 45(3):646-654.
[33] WALLIS G B.One dimensional two-phase flows[M].New York:Mcgraw Hill, 1967.
[34] 朱佳凯.低温空化非稳态特性和机理研究[D].杭州:浙江大学, 2018. ZHU J K.Study on unsteady characteristics and mechanisms of cryogenic cavitation[D].Hangzhou:Zhejiang University, 2018(in Chinese).
[35] GANESH H, MÄKIHARJU S A, CECCIO S L.Bubbly shock propagation as a mechanism for sheet-to-cloud transition of partial cavities[J].Journal of Fluid Mechanics, 2016, 802:37-78.
[36] CHEN T R, CHEN H, LIANG W D, et al.Experimental investigation of liquid nitrogen cavitating flows in converging-diverging nozzle with special emphasis on thermal transition[J].International Journal of Heat and Mass Transfer, 2019, 132:618-630.

Influence of pressure ratio on evolution of cavitation dynamic process in Venturi tube

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