Fluctuating component decomposition of condensation jet image using wavelets Academic Article

abstract

• This paper describes the application of discrete wavelet transforms to the analysis of condensation jets in order to clarify the associated fluid and heat transfer phenomena. An experimentally obtained, two-dimensional image of the condensation particle density around the jet was decomposed into seven levels of resolution with their respective wavelengths. Based on the known physical characteristics of turbulent flow around the jet, levels 0 and 1 were shown to represent the steady components of the condensation particle density, and the higher levels represent the fluctuating components. From the analysis images, the width of the condensation zone was obtained and this compared well with the width inferred from temperature measurements. Thus, the method was verified and also provided data not available experimentally.

authors

• Kirkland, Karen

published proceedings

• Journal of Flow Visualization and Image Processing

author list (cited authors)

• Kimura, M., Takei, M., Saima, A., Vierow, K., Saito, Y., & Horii, K.

complete list of authors

• Kimura, M||Takei, M||Saima, A||Vierow, K||Saito, Y||Horii, K

publication date

• December 2001

published in

• Journal of Flow Visualization and Image Processing  Journal

start page

• 149

end page

• 164

volume

• 8

issue

• 2-3