Fate of a Sessile Droplet Absorbed into a Porous Surface Experiencing Chemical Degradataion

Document Type

Article

Publication Date

3-24-2014

Publication Title

AIChE Journal

Abstract

A general‐purpose multiphase and multicomponent computer model was developed for simulation of the spread, evaporation, and chemical reaction of sessile droplet(s) in porous substrates. In the model, chemical reactions were allowed in or between any of the liquid, gas, or solid phases present. The species mass and momentum conservation equations were solved on a finite difference mesh representing the domain. These equations were marched in time using the Runge–Kutta fourth‐order method. The model's function was studied via simulation of experiments, both those performed by the authors and found in the literature. These simulations demonstrated a quantitative match to the time history of product evolution and a similar spread of liquid reactants. The model may be particularly beneficial for predicting the extent of contamination and the possible threat outcomes of those chemical agents that are harmful when introduced into the environment.

Volume

60

Issue

7

First Page

2257

Last Page

2265

DOI

https://doi.org/10.1002/aic.14454

ISSN

0001-1541

Comments

ESSN: 1547-5905

Rights

© American Institute of Chemical Engineers (AIChE)

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