Abstract
When both a gas and liquid are simultaneously introduced into a microreactor, slug bubble flow is often observed. To properly design the microreactor, the estimation of the slug bubble size is very important. In this study, therefore, the slug bubble formation mechanism at a micronozzle inserted into a capillary tube was investigated. The effects of the gas flow rate, nozzle diameter, capillary diameter and liquid velocity on the bubble shape and volume were experimentally examined. To clarify the dynamic behavior of a slug bubble at a micronozzle, the slug bubble formation model was proposed. Bubble volumes, bubble growth curves and bubble shapes experimentally obtained in this study are well predicted by the present model.
| Original language | English |
|---|---|
| Pages (from-to) | 913-919 |
| Number of pages | 7 |
| Journal | Journal of Chemical Engineering of Japan |
| Volume | 40 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2007 Nov 20 |
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Keywords
- Bubble formation model
- Capillary tube
- Liquid film
- Slug bubble
- Two-phase flow
ASJC Scopus subject areas
- Chemical Engineering(all)
Cite this
Slug bubble formation in a co-flowing liquid in a capillary tube. / Goshima, Takashi; Terasaka, Koichi.
In: Journal of Chemical Engineering of Japan, Vol. 40, No. 11, 20.11.2007, p. 913-919.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Slug bubble formation in a co-flowing liquid in a capillary tube
AU - Goshima, Takashi
AU - Terasaka, Koichi
PY - 2007/11/20
Y1 - 2007/11/20
N2 - When both a gas and liquid are simultaneously introduced into a microreactor, slug bubble flow is often observed. To properly design the microreactor, the estimation of the slug bubble size is very important. In this study, therefore, the slug bubble formation mechanism at a micronozzle inserted into a capillary tube was investigated. The effects of the gas flow rate, nozzle diameter, capillary diameter and liquid velocity on the bubble shape and volume were experimentally examined. To clarify the dynamic behavior of a slug bubble at a micronozzle, the slug bubble formation model was proposed. Bubble volumes, bubble growth curves and bubble shapes experimentally obtained in this study are well predicted by the present model.
AB - When both a gas and liquid are simultaneously introduced into a microreactor, slug bubble flow is often observed. To properly design the microreactor, the estimation of the slug bubble size is very important. In this study, therefore, the slug bubble formation mechanism at a micronozzle inserted into a capillary tube was investigated. The effects of the gas flow rate, nozzle diameter, capillary diameter and liquid velocity on the bubble shape and volume were experimentally examined. To clarify the dynamic behavior of a slug bubble at a micronozzle, the slug bubble formation model was proposed. Bubble volumes, bubble growth curves and bubble shapes experimentally obtained in this study are well predicted by the present model.
KW - Bubble formation model
KW - Capillary tube
KW - Liquid film
KW - Slug bubble
KW - Two-phase flow
UR - http://www.scopus.com/inward/record.url?scp=37649000624&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=37649000624&partnerID=8YFLogxK
U2 - 10.1252/jcej.07WE013
DO - 10.1252/jcej.07WE013
M3 - Article
VL - 40
SP - 913
EP - 919
JO - Journal of Chemical Engineering of Japan
JF - Journal of Chemical Engineering of Japan
SN - 0021-9592
IS - 11
ER -