Conceptual modeling of contaminated solute transport based on stream tube model

Title
Conceptual modeling of contaminated solute transport based on stream tube model
Authors
정승건이순재김동주이상협최재우
Keywords
Conceptual modeling; Solute transport; Pure convective flow; Stream tube model; Travel time distribution
Issue Date
2012-10
Publisher
Advances in Chemical Engineering and Science
Citation
VOL 2, NO 4, 481-489
Abstract
In this study, we performed a conceptual modeling on solute transport based on theoretical stream tube model (STM) with various travel time distributions assuming a pure convective flow through each tube in order to investigate how the lengths and distributions of solute travel time through STM affect the breakthrough curves at the end mixing surface. The conceptual modeling revealed that 1) the shape of breakthrough curve (BTC) at the mixing surface was determined by not only input travel time distributions but also solute injection mode such as sampling time and pulse lengths, 2) the increase of pulse length resulted in the linear increase of the first time moment (mean travel time) and quadratic in-crease of the second time moment (variance of travel time) leading to more spreading of solute, however, the second time moment was not affected by travel time distributions, and 3) for a given input distributions the increase in travel distance resulted in more dispersion with the quadratic increase of travel time variance. This indicates that stream tube model obeying strictly pure convective flow follows the concept of convective-lognormal transport (CLT) model re-gardless the input travel time distributions.
URI
http://pubs.kist.re.kr/handle/201004/42950
ISSN
21600406
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE