Abstract
Detailed observations have been conducted on the interfacial deformation of the silicone oil surface and a water drop fallen on it. Eleven kinds of silicone oils with wide variations of kinematic viscosity, νT=1∼105mm2/s, have been tested. The oil surface is disturbed by a water drop with a diameter dL=3.1mm, which falls freely on it from on height of 100mm∼1000mm. Special attention has been directed to the maximum depth of the cavity formed on the oil surface DM, and to the maximum diameter of the water drop spreading on the oil surface dM. We have categorized the configurations of the oil cavity into seven patterns, and those of the water drop at the oil-water interface into five patterns. The maximum cavity depth DM/dL can be well correlated by a dimensionaless group ReTLWeTLwhere ReTL is Reynolds number based on dL and νT and WeTL is Weber number with the water density and surface tension of oil. The maximum diameter of the impacting water drop dM/dL can be correlated by the Reynolds number with a viscosity of water(ReL)and the Ohnesorge number(Oh). Moreover, the condition under which the impacting water drop is smashed into pieces has been also examined based on ReL and Oh.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
