Implementation of Stochastic and Wavelet Analysis for Liquid Film Thickness Fluctuations during Flow Limitation on A Complex Geometry by Using Image Processing
Penulis/Author
AKHLISA NADIANTYA AJI NUGROHO (1); Prof. Dr. Eng. Ir. Deendarlianto, S.T., M.Eng. (2); Prof. Dr. Ir. Indarto, DEA., IPM., ASEAN Eng. (3); ACHILLEUS HERMAWAN A (4)
Tanggal/Date
2021
Kata Kunci/Keyword
Abstrak/Abstract
This study investigates the statistical characteristics of liquid film thickness fluctuations during countercurrent flow limitation on a complex geometry containing a horizontal and inclined pipe which are connectedby an elbow. The fluctuation data are obtained by image processing technique which was applied towards high-qualityimages captured by a
high-speed video recording. The result indicates that the thickening of the liquid triggers the liquid blockage that initiates flooding at the upper edge of the hydraulic jump. Moreover, the stochastic analysis revealsthat the obtained data imply consistence trends across whole water discharge. Furthermore, it also shows a good agreement to the visual observations. Meanwhile, the wavelet analysis can distinguish energy fluctuations under different water discharges
