Advertisement
Published in:
2020 | OriginalPaper | Chapter
Reynolds Number Dependency of the Heat and Mass Transfer in Mixed Convective Duct Flow with Condensation at a Cooled Wall
Authors : Christian Brückner, Philipp Bahavar, Andreas Westhoff, Claus Wagner
Published in: New Results in Numerical and Experimental Fluid Mechanics XII
Publisher: Springer International Publishing
Activate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
Abstract
Temperature and humidity measurements are performed in mixed convective moist-air duct flows for the Reynolds numbers \(Re = \) 2000, 4000 and 6000 with condensation at a cooled wall in a vertical rectangular duct. The width-to-height ratio is 10.66:1. A comparison of experimental results obtained with passive insulation on the wall opposite to the cooled wall for \(Re = 2000\) with results of direct numerical simulations performed under adiabatic boundary conditions reveals large differences. The latter are significantly reduced by realising an active insulation with isothermal boundary conditions. Using this set-up, it is shown that the heat and mass transfer in terms of the Nusselt and Sherwood number increase with the Reynolds number.