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Publication Date:
December 2010
ISSN:
1542-6580
DOI:
10.2202/1542-6580.2399

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Deposition of Evaporating Droplets in a Decelerating Boundary Layer with Wall Suction: Mathematical Analysis

Ro'ee Z Orland1 / Rafael Tadmor2 / David Katoshevski3

1Ben-Gurion University of the Negev, orland@bgu.ac.il

2Lamar University, rafael.tadmor@lamar.edu

3Ben-Gurion University of the Negev, davidk@bgu.ac.il

Citation Information: International Journal of Chemical Reactor Engineering. Volume 8, Issue 1, Pages –, ISSN (Online) 1542-6580, DOI: 10.2202/1542-6580.2399, December 2010

Publication History:
Published Online:
2010-12-05

The problem of spray/droplets dynamics in a downstream decelerating boundary layer accompanied by evaporation and wall suction is treated analytically. A similarity approach is employed and explicit expressions are obtained for the distribution of the host-gas velocity and for the distribution of the liquid phase. Several options are considered in terms of evaporation, including the possibilities of constant evaporation in the lateral direction of the boundary layer and of evaporation dependent on proximity to the wall. The results reveal the possibility that, under certain conditions, the liquid phase concentration reaches an extremum inside the boundary layer domain, rather than at the wall or in the free stream.

Keywords: boundary layer; similarity solution; two-phase flow

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