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.
ProCite
RefWorks
Reference Manager
BibTeX
Zotero
EndNote
-
Akhmetov, D. G., Akhmetov, T. D. (2016) Flow structure in a vortex chamber. Journal of Applied Mechanics and Technical Physics 57(5): 879–887.
-
Akhmetov, D. G., Akhmetov, T. D., Pavlov, V. A. (2018) Flow Structure in a Ranque-Hilsch Vortex Tube. Doklady Physics 63(6): 235–238.
-
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. 459–473.
-
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): 1–14.
-
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: 81–96.
-
Fu Qiang , Li Mengyuan, Zhu Rongsheng, Liu Gang, Wang Xiuli, Design method of conical cavitation device, patents CN107719579 (A) — 2018-02-23; B63B9/00.
-
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.
-
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.
-
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.
-
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.
-
Karn, A., Arndt, R. E. A., Hong, J. (2016) An experimental investigation into supercavity closure mechanisms. Journal of Fluid Mechanics 789: 259–284.
-
Li Fuyuan , Li Guozhong, Ma Zengshuai, Zhao Hailong, Resistance self-adaptive variable structural cavitator, patents CN107310687 (A) – 2017-11-03, B63B1/38.
-
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): 149–154.
-
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: 464–471.
-
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: 196–205.
-
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): 236–244. DOI: 10.18280/ijht.340212.
-
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): 2069–2083.
-
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: 89–96.
Monthly Content Usage
| Abstract Views | Full Text Views | PDF Downloads | |
|---|---|---|---|
| Aug 2020 | 59 | 3 | 4 |
| Sep 2020 | 18 | 9 | 9 |
| Oct 2020 | 30 | 0 | 0 |
| Nov 2020 | 18 | 4 | 2 |
| Dec 2020 | 20 | 0 | 0 |
| Jan 2021 | 10 | 0 | 0 |
| Feb 2021 | 0 | 0 | 0 |
Copyright Akadémiai Kiadó
AKJournals is the trademark of Akadémiai Kiadó's journal publishing business branch.
Copyright Akadémiai Kiadó AKJournals is the trademark of Akadémiai Kiadó's journal publishing business branch.
Powered by PubFactory