World Library  

Add to Book Shelf
Flag as Inappropriate
Email this Book

Physics of Fluids : Rupture of radially spreading liquid films

By Rajeev Dhiman and Sanjeev Chandra

Click here to view

Book Id: WPLBN0002169582
Format Type: PDF eBook :
File Size: Serial Publication
Reproduction Date: 10 September 2008

Title: Physics of Fluids : Rupture of radially spreading liquid films  
Author: Rajeev Dhiman and Sanjeev Chandra
Volume: Issue : September 2008
Language: English
Subject: Science, Physics, Natural Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Physics of Fluids Collection
Publication Date:
Publisher: American Institute of Physics


APA MLA Chicago

And Sanjeev Chandra, R. D. (n.d.). Physics of Fluids : Rupture of radially spreading liquid films. Retrieved from

Description: The rupture of thin water films (thickness of ∼ 100 μm) spreading radially outward on a solid surface was studied experimentally. Circular water films were produced by directing a 1 mm diameter water jet onto a flat horizontal plate for 10 ms. Jet impact velocity was varied from 1.6 to 6.1 m/s, giving Reynolds numbers from 1600 to 6100. Three different plates were used (glass, Plexiglas, and wax) to vary substrate wettability. Both rough and smooth wax surfaces were tested. Water films did not rupture on glass and Plexiglas plates, but holes formed and expanded in films spreading on wax, which had the highest liquid-solid contact angle. Tests in which the spreading film was not supported on a surface, but spread after impact on a pin to simulate a perfectly nonwetting surface, did not show formation of holes. A thermodynamic stability analysis predicted film rupture behavior by showing that films would be stable at very small or very large contact angle but unstable in between. Film rupture was also found to be promoted by increasing surface roughness or decreasing film thickness.


Copyright © World Library Foundation. All rights reserved. eBooks from World Journals, Database of Academic Research Journals are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.