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  • 1 Department of Metal Technology and Machine Repair
  • 2 Department of Mechanization of Stockbreeding and Electrification of Agriculture
  • 3 Department of Mobile Power Tools Operation and Agricultural Machinery, Engineering Faculty
  • 4 Department of Applied Mechanics, Physics, and Higher Mathematics
  • 5 Department of Mobile Power Tools Operation and Agricultural Machinery Nizhniy Novgorod State Agriculture Academy (FGBOU VO Nizhegorodskaya GSHA), 97, Gagarin prospect, Nizhniy Novgorod, 603107, Russia
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Abstract

Background: Acoustic cavitation is the creation and collapse of cavitation caverns in liquid in an acoustic field with a frequency of f = 1–3 kHz. The acoustic-cavitation processes manifest themselves during the collapse phase, with high pressure gradient continuum deformation, with a multiple transformation of energy forms. Liquid whistles are widely used to create an acoustic field of high power, but their efficiency only reaches 6–12%. We propose a liquid whistle in the form of a vortex cavitator (analogue of the Ranque vortex tube) with a rotating body in which a reduction in the input power is predicted.

Objective: Verification of feasibility of using a rotating body in a vortex cavitator with a rotation co-directional to the operational pump impeller.

Method: The method for identifying the feasibility of using a rotating body is to exclude body from the prototype and directly connect vortex chamber outlet with the pump inlet, which ensures the most complete preservation of co-directional vortex component of the flux entering the pump impeller.

Results: The results of experimental studies confirmed the validity of the hypothesis to a greater extent, since we achieved an increase in pressure at the outlet of the pump and a decrease in power at the drive relative to the original design.

Conclusions: The feasibility of designing the vortex cavitator body with rotation capability has been established, which will provide a reduction in input power of at least 30% by a rotation of the body, co-directional with the impeller.

  • Akhmetov, D. G., Akhmetov, T. D. (2016) Flow structure in a vortex chamber. Journal of Applied Mechanics and Technical Physics 57(5): 879887.

    • Search Google Scholar
    • Export Citation
  • Akhmetov, D. G., Akhmetov, T. D., Pavlov, V. A. (2018) Flow Structure in a Ranque-Hilsch Vortex Tube. Doklady Physics 63(6): 235238.

  • Athar, M., Srotriya, S. (2018) Velocity Distribution in Vortex Chamber at High Water Abstraction Ratio. Hydrologic Modeling. Water Science and Technology Library, Vol. 81. Springer, Singapore, pp. 459473.

    • Search Google Scholar
    • Export Citation
  • Bagal, M. V., Gogate, P. R. (2014) Wastewater treatment using hybrid treatment schemes based on cavitation and Fenton chemistry: A review. Ultrasonics Sonochemistry 21(1): 114.

    • Search Google Scholar
    • Export Citation
  • Blad, Th. Pump assembly, patents WO2018166975 (A1), 2018-9-20, F04D1/00; F04D13/06; F04D15/00; F04D29/42; F04D29/48; F24D3/10.

  • Favrel, A., Gomes, J., Junior, P., Landry, Ch., Müller, A., Yamaishi, K., Avellan, F. (2018) Dynamic modal analysis during reduced scale model tests of hydraulic turbines for hydro-acoustic characterization of cavitation flows. Mechanical Systems and Signal Processing 117: 8196.

    • Search Google Scholar
    • Export Citation
  • Fu Qiang , Li Mengyuan, Zhu Rongsheng, Liu Gang, Wang Xiuli, Design method of conical cavitation device, patents CN107719579 (A) — 2018-02-23; B63B9/00.

    • Search Google Scholar
    • Export Citation
  • Ivanov, E. G. (2014) Increasing the efficiency of the vortex cavitator with axial input of transit flow. All-Russian scientific and technical conference (with international participants). Hydraulic machines, hydraulic drives, and hydraulic pneumatics. Present condition and perspectives of development. In: Proceedings of the 8th All-Russian Scientific and Technical Conference (with international participants). Saint-Petersburg, June 10–11, 2014, p. 246.

    • Search Google Scholar
    • Export Citation
  • Ivanov, E. G., Ugarov, V. S., Gordeev, B. A., Kokorin, N. V., Ivanov, A. E. Vortex cavitator. Patents RU2669442, 2018-10-11, Bul. 29, F24V99/00.

    • Search Google Scholar
    • Export Citation
  • Jang Jeong Cheol , Lee Kyoung Joo, Yang Hyun Sung, Pump for Circulating Water, patents KR101869827 (B1) — 2018-06-21, F04D29/24; F04D29/42; F04D29/66; F24D3/02.

    • Search Google Scholar
    • Export Citation
  • Potapov U. S. Heat generator and device for heating liquids. Patents RU2045715, 1993-04-26, F25B29/00.

  • Jung Chul Min , Kim Chan Ki, Park Warn Gyu, Cavitation Device of Under Water Moving Body and Under Water Moving Body Having the Same, patents US2013298819 (A1) – 2013-11-14, B63B1/36; B63G8/00.

    • Search Google Scholar
    • Export Citation
  • Karn, A., Arndt, R. E. A., Hong, J. (2016) An experimental investigation into supercavity closure mechanisms. Journal of Fluid Mechanics 789: 259284.

    • Search Google Scholar
    • Export Citation
  • Li Fuyuan , Li Guozhong, Ma Zengshuai, Zhao Hailong, Resistance self-adaptive variable structural cavitator, patents CN107310687 (A) – 2017-11-03, B63B1/38.

    • Search Google Scholar
    • Export Citation
  • Matsuno, Y., Fukushima, Y., Matsuo, Sh., Hashimoto, T., Setoguchi, T., Kim, H. D. (2015) Investigation on temperature separation and flow behavior in fortex chamber. Journal of Thermal Science 24(2): 149154.

    • Search Google Scholar
    • Export Citation
  • Matsuo, Sh., Matsuno, Y., Fukushima, Y., Mamun, M., Hashimoto, T., Setoguchi, T., Kim, H. D. (2015) Experimental Study on Temperature Separation in Vortex Chamber. Procedia Engineering 105: 464471.

    • Search Google Scholar
    • Export Citation
  • Qiu, S., Ma, X., Huang, B., Li, D., Wang, G., Zhang, M. (2018) Numerical simulation of single bubble dynamics under acoustic standing waves. Ultrasonics Sonochemistry 49: 196205.

    • Search Google Scholar
    • Export Citation
  • Rafiee, S. E., Sadeghiazad, M. M. (2016) Three-dimensional CFD simulation of fluid flow inside a vortex tube on basis of an experimental model – The optimization of vortex chamber radius. International Journal of Heat and Technology 34(2): 236244. DOI: 10.18280/ijht.340212.

    • Search Google Scholar
    • Export Citation
  • Sivakumar, M., Tang, S. Y., Tan, Kh. W. (2014) Cavitation technology – A greener processing technique for the generation of pharmaceutical nanoemulsions. Ultrasonics Sonochemistry 21(6): 20692083.

    • Search Google Scholar
    • Export Citation
  • Vignjevic Rade [GB]. Cavitation Generation, patents WO2015001315 (A2) – 2015-01-08, B65B1/24.

  • Wu, P., Bai, L., Lin, W., Wang, X. (2018) Mechanism and dynamics of hydrodynamic-acoustic cavitation (HAC). Ultrasonics Sonochemistry 49: 8996.

    • Search Google Scholar
    • Export Citation

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