Measurement of liquid film flow on inclined wall using photochromic dye marking method

The objective of present work is to apply a liquid film measurement technique, which is called as photochromic dye marking method. This technique utilizes a color change of the photochromic dye contained in the test film when ultraviolet (UV) light from Nd: YAG laser (X 355 nm) is irradiated. The mo...

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Main Author:	Nurrina, Rosli
Format:	Thesis
Language:	English
Published:	2011
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/9038/ http://umpir.ump.edu.my/id/eprint/9038/ http://umpir.ump.edu.my/id/eprint/9038/1/NURRINA%20BINTI%20ROSLI.PDF

id	ump-9038
recordtype	eprints
spelling	ump-90382015-11-11T03:05:36Z http://umpir.ump.edu.my/id/eprint/9038/ Measurement of liquid film flow on inclined wall using photochromic dye marking method Nurrina, Rosli TA Engineering (General). Civil engineering (General) The objective of present work is to apply a liquid film measurement technique, which is called as photochromic dye marking method. This technique utilizes a color change of the photochromic dye contained in the test film when ultraviolet (UV) light from Nd: YAG laser (X 355 nm) is irradiated. The movement of the dye trace formed by the UV irradiation is then captured by a high speed video camera and analyzed to obtain the surface velocity. The movement of wave passing by the dye trace is also analyzed and comparison between them is made to investigate the velocity change. The data regarding such information is nowadays lacking. Apart from the measurement as mentioned above, this paper also aimed to produce the average waves velocity and film thickness results data. The wave velocity is measured by cross correlating two signals of light intensity from two laser beams spaced in a known distance; parallel with the film flow direction. Taking advantages from one of the laser beams sourced from a diode laser light (X= 407 nm), the thickness is determined based on the intensity of absorption light passing through the test film contained a fluorescent dye, coumarin-153. This technique is a non-intrusive and easy technique to be conducted, as it only requires simple optical arrangement and calibration process. The data from this study are also compared with previous published results [1],.[18], [19]. The experiment is conducted at different inclination angle from the horizontal direction (0= 300 , 60°, 90°). The 'effects of Reynolds number (Re= 50.8, 81.3, 108.4, 138.9) and film flow characteristics at various positions on the inclined wall defined as distance from liquid inlet (x= 60 mm, 100 mm, 140 mm, 180 mm) are investigated. 2011 Thesis NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/9038/1/NURRINA%20BINTI%20ROSLI.PDF Nurrina, Rosli (2011) Measurement of liquid film flow on inclined wall using photochromic dye marking method. Masters thesis, Gunma University. http://iportal.ump.edu.my/lib/item?id=chamo:83655&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Nurrina, Rosli Measurement of liquid film flow on inclined wall using photochromic dye marking method
description	The objective of present work is to apply a liquid film measurement technique, which is called as photochromic dye marking method. This technique utilizes a color change of the photochromic dye contained in the test film when ultraviolet (UV) light from Nd: YAG laser (X 355 nm) is irradiated. The movement of the dye trace formed by the UV irradiation is then captured by a high speed video camera and analyzed to obtain the surface velocity. The movement of wave passing by the dye trace is also analyzed and comparison between them is made to investigate the velocity change. The data regarding such information is nowadays lacking. Apart from the measurement as mentioned above, this paper also aimed to produce the average waves velocity and film thickness results data. The wave velocity is measured by cross correlating two signals of light intensity from two laser beams spaced in a known distance; parallel with the film flow direction. Taking advantages from one of the laser beams sourced from a diode laser light (X= 407 nm), the thickness is determined based on the intensity of absorption light passing through the test film contained a fluorescent dye, coumarin-153. This technique is a non-intrusive and easy technique to be conducted, as it only requires simple optical arrangement and calibration process. The data from this study are also compared with previous published results [1],.[18], [19]. The experiment is conducted at different inclination angle from the horizontal direction (0= 300 , 60°, 90°). The 'effects of Reynolds number (Re= 50.8, 81.3, 108.4, 138.9) and film flow characteristics at various positions on the inclined wall defined as distance from liquid inlet (x= 60 mm, 100 mm, 140 mm, 180 mm) are investigated.
format	Thesis
author	Nurrina, Rosli
author_facet	Nurrina, Rosli
author_sort	Nurrina, Rosli
title	Measurement of liquid film flow on inclined wall using photochromic dye marking method
title_short	Measurement of liquid film flow on inclined wall using photochromic dye marking method
title_full	Measurement of liquid film flow on inclined wall using photochromic dye marking method
title_fullStr	Measurement of liquid film flow on inclined wall using photochromic dye marking method
title_full_unstemmed	Measurement of liquid film flow on inclined wall using photochromic dye marking method
title_sort	measurement of liquid film flow on inclined wall using photochromic dye marking method
publishDate	2011
url	http://umpir.ump.edu.my/id/eprint/9038/ http://umpir.ump.edu.my/id/eprint/9038/ http://umpir.ump.edu.my/id/eprint/9038/1/NURRINA%20BINTI%20ROSLI.PDF
first_indexed	2023-09-18T22:07:10Z
last_indexed	2023-09-18T22:07:10Z
_version_	1777414785563885568

Measurement of liquid film flow on inclined wall using photochromic dye marking method

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