A quasi one-dimensional method and results for steady annular/stratified shear and gravity driven condensing flows
Document Type
Article
Publication Date
4-8-2011
Abstract
This paper presents an effective quasi one-dimensional (1-D) computational simulation methodology for steady annular/stratified internal condensing flows of pure vapor. In-channel and in-tube flows are considered for a range of gravity component values in the direction of the flow. For these flows, three sets of results are presented and they are obtained from: (i) a full 2-D CFD based approach, (ii) the quasi-1D approach introduced here, and (iii) relevant experimental results for gravity driven condensing flows of FC-72. Besides demonstrating differences between shear and gravity driven annular flows, the paper also presents a map that distinguishes shear driven, gravity driven, and “mixed” driven flows within the non-dimensional parameter space that govern these duct flows. The paper also demonstrates that μm-scale hydraulic diameter ducts typically experience shear/pressure driven flows.
Publication Title
International Journal of Heat and Mass Transfer
Recommended Citation
Mitra, S. A.,
Narain, A.,
Naik, R. R.,
&
Kulkarni, S. D.
(2011).
A quasi one-dimensional method and results for steady annular/stratified shear and gravity driven condensing flows.
International Journal of Heat and Mass Transfer,
54(15-16), 3761-3776.
http://doi.org/10.1016/j.ijheatmasstransfer.2011.03.008
Retrieved from: https://digitalcommons.mtu.edu/mechanical-fp/24
Publisher's Statement
© 2011 Elsevier Ltd. Publisher’s version of record: http://dx.doi.org/10.1016/j.ijheatmasstransfer.2011.03.008