Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2009.1317.1323TashH.A.SadeghiM.ShervanitabarM.T.EttefaghM.M.7200997Though the cavitation as a damaging phenomenon of hydraulic
devices, has been drawing the interest of many researchers, almost very
few investigations have been done on the cavitation measurement inside
axial flow pumps. The present study is one of the leading ones which consider
this phenomenon inside this widely used type of pumps. Oscillations of
the structure of the pump were used to measure the cavitation. An average
energy method for identification cavitation occurrence and measurement
its intensity has been developed. This is called Logarithmic Cavitation
Intensity (LCI). A statistical analysis was undertaken in a both time
and frequency domains and the LCI was proved as a proper criterion for
defining the cavitation intensity. Though being very robust, the introduced
method is very simple and does not require time consuming calculations.
This causes LCI method to be feasible by simple hardware with low sampling
frequency, resulting in reducing the computational time as well as hardware
complexity and cost.]]>Alfayez, L. and G. Dyson, 2005Al-Hashmi, S., F. Gu, Y. Li, A.D. Ball, T. Fen and K. Lui,2004Brujan, E.A.,T. Ikeda and Y. Matsumoto,2008Europump,1999Farkas, I. and Z. Pandula,2006France, J.P. and J.M. Michel,2005Futakawa, M., H. Kogawa, S. Hasegawa, Y. Ikeda and B. Riemer et al.,2008Gao, X., R. Stone, C. Hudson and I. Bradbury,1993Gulich, J.F.,2008Guogang, W., G. Ma, D. Sun, H. Yu and H. Meng,2008Hattori, S. and M. Kishimoto,2008Hodnett, M. and B. Zeqiri,2008Karpiouk, A.B., S.R. Aglyamov, F. Bourgeois, A. Ben-Yakar and S.Y. Emelianov,2008Lee, H., E. Akagawa, E. Tatsumi and Y. Taenaka,2008Maulik, D.,2005Suslick, K.S. and D.J. Flannigan,2008Tsudaa, S. and S. Takagib,2008Xu, R., X. Chen, Z. Shen, J. Lu and X. Ni,2005Zhang, M., G. Wang and X. Li,2008Zhang, X.B., L.M. Qiu and Y. Matsumoto,2008Zheng, Y.G., S.Z. Luo and W. Ke,2008