Methods of Experimental Investigation of Cavitation in a Convergent - Divergent Nozzle of Rectangular Cross Section

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Abstract

Cavitation is a phenomenon with both positive and negative effects and with dynamic manifestations in hydraulic, food, chemical and other machinery. This article deals with the detection and dynamic behavior of cavitation clouds in water flows through a rectangular cross-section convergent-divergent nozzle. Cavitation was measured by methods applicable in engineering practice. Pressure, flow rate, noise, vibration, and amount of air dissolved in the liquid were measured and cavitation region was recorded with a high-speed camera. Evaluation of acquired images in connection with measured pressure pulsations and mechanical vibrations was performed with the use of the FFT method. In certain cases, dimensionless parameters were used to generalize the measurements. The results will be used to specify multiphase mathematical cavitation model parameters.

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  • [1] Luo J. Xu W.L. Niu Z.P. Luo S.J. Zheng Q.W. (2013). Experimental study of the interaction between the spark-induced cavitation bubble and the air bubble. Journal of Hydrodynamics Ser. B 25 (6) 895-902.

  • [2] Brennen C.E. (2013). Cavitation and Bubble Dynamics. Cambridge University Press.

  • [3] Autrique R. Rodal E. Sánchez A. Carmona L. (2012) Physical model studies of water column separation. In IOP Conference Series: Earth Environmental Science 15 (2012) 022014.

  • [4] Zhang Y. Du X. Xian H. Wu Y. (2015). Instability of interfaces of gas bubbles in liquids under acoustic excitation with dual frequency. Ultrasonics Sonochemistry 23 16-20.

  • [5] Lee J. Kentish S. Ashokkumar M. (2005). Effect of surfactants on the rate of growth of an air bubble by rectified diffusion. The Journal of Physical Chemistry B 109 (30) 14595-14598.

  • [6] Lange D.F. Bruin G.J. Wijngaarden L. (1994). On the mechanism of cloud cavitation - experiment and modeling. In Second International Symposium on Cavitation April 5-7 1994 Tokyo Japan 45-49.

  • [7] Reisman G.E. Wang Y.C. Brennen C.E. (1998). Observations of shock waves in cloud cavitation. Journal of Fluid Mechanics 355 255-283.

  • [8] Zhang J.M. Qing Y.A.N.G. Wang Y.R. Xu W.L. Chen J.G. (2011). Experimental investigation of cavitation in a sudden expansion pipe. Journal of Hydrodynamics Ser. B 23 (3) 348-352.

  • [9] Dvorsky R. Lunacek J. Sliva A. (2011). Dynamics analysis of cavitation disintegration of microparticles during nanopowder preparation in a new Water Jet Mill (WJM) device. Advanced Powder Technology 22 (5) 639-643.

  • [10] Olšiak R. Knížat B. Mlkvik M. (2012). Visualization of cavitating micro jets. EPJ Web of Conferences 25 01062.

  • [11] Kirschner O. (2005). Vortex rope measurement in a pump-turbine with a straight cone draft tube. In Workshop on Turbomachinery Hydromechanics Timisoara Romania Vol. 23.

  • [12] Amirante R. Distaso E. Tamburrano P. (2014). Experimental and numerical analysis of cavitation in hydraulic proportional directional valves. Energy Conversion and Management 87 208-219.

  • [13] Jančula D. Mikula P. Maršálek B. Rudolf P. Pochylý F. (2014). Selective method for cyanobacterial bloom removal: Hydraulic jet cavitation experience. Aquaculture International 22 (2) 509-521.

  • [14] Noskievič J. (1969) Cavitation. Prague Czech Republic: Academia. (in Czech)

  • [15] Yan Z. Liu J. Chen B. Cheng X. Yang J. (2015). Fluid cavitation detection method with phase demodulation of ultrasonic signal. Applied Acoustics 87 198-204.

  • [16] Wójs K. (2004) Kawitacja w cieczach o różnych właściwościach reologicznych. Wrocław Poland: Oficyna Wydawnicza Politechniki Wrocławskiej.

  • [17] Kuneš J. (2012). Dimensionless Physical Quantities in Science and Engineering. Elsevier.

  • [18] Lira I. Grientschnig D. (2013). A formalism for expressing the probability density functions of interrelated quantities. Measurement Science Review 13 (2) 50-55.

  • [19] Shalnev K.K. (1954). The structure of the cavitation region. Izvestiya Akademii Nauk SSR 5 119-146. (in Russian)

  • [20] Hunsaker J.C. (1935) Cavitation research - a progress report on work at the Massachusetts Institute of Technology. Mechanical Engineering April 1935 211-216.

  • [21] Pearsall I.S. (1966). Paper 14: Acoustic detection of cavitation. Proceedings of the Institution of Mechanical Engineers Conference Proceedings 181 (1) 1-8.

  • [22] Sou A. Hosokawa S. Tomiyama A. (2007). Effects of cavitation in a nozzle on liquid jet atomization. International Journal of Heat and Mass Transfer 50 (17) 3575-3582.

  • [23] Noskievič J. (1987). Fluid Mechanics. Prague Czech Republic: SNTL. (in Czech).

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