Abstract
It is widely believed that the secondary flow mechanism, namely the generation of secondary flow in the gas phase due to circumferentially varying interfacial roughness, plays an important role in the liquid film distribution in horizontal annular flow. We study this mechanism numerically using the HARWELLFLOW 3D computer program. We use wall functions to account for wall roughness, and verify this approach to comparing our predictions with the data of Nikuradse and Hanjalic & Launder. We then apply the methodology to the prediction of secondary flow in a pipe subjected to differential wall roughness, and show that the contribution of the secondary flow in the gas is hitherto overestimated by up to an order of magnitude.
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: Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences
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.
