Abstract
Heat/mass tranfer characteristics in rectangular cross-sectioned serpentine ducts with a sharp 180-degree turn have been measured by the naphthalene sublimation method, directing special attention to the influence of the flow-inlet condition on the local mass transfer. The test duct has relatively short straight sections, (7.9∼9.1) dh, before and after the turn. Two contrasrive flow-inlet conditions, contracted-flow inlet and uniform-flow inlet, have been tested for three turn clearances at Reynolds number of 3.5×104. The distributions of local Sherwood numbers on all walls of the test ducts are shown in the form of 2-D maps. In the straight section before the turn, the influence of the flow-inlet condition on the local mass transfer characteristics appears very clearly. After the turn section, the local mass transfer is also influenced by the flow-inlet condition in a duct with a large turn clearance. As the turn clearance is decreased, however, the influence of the flow-inlet condition becomes weaker.
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.
