Abstract
The motion of a vapor bubble after the detachment from a nucleation site in a vertical heated tube was visually observed using two high speed video cameras. It was revealed from video images that the bubble rise path after the detachment is significantly affected by the two parameters : liquid flowrate and bubble size. Almost all the bubbles slid along the vertical wall at low liquid flowrate while intermediate sized bubbles lifted-off the wall in the horizontal direction at higher liquid flowrate. The two parameters would hence have important role for the heat transfer rate, condensation rate and the critical heat flux in flow boiling. A simple Lagrangian simulation was also carried out to describe qualitatively the effects of the two parameters.
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 callDisclaimer: 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.
