The effect of bubble deceleration on the liquid film thickness in microtubes
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Youn, Young Jik | - |
dc.contributor.author | Muramatsu, Kenshiro | - |
dc.contributor.author | Han, Youngbae | - |
dc.contributor.author | Shikazono, Naoki | - |
dc.date.available | 2020-07-10T06:05:45Z | - |
dc.date.created | 2020-07-06 | - |
dc.date.issued | 2016-04 | - |
dc.identifier.issn | 0142-727X | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/8006 | - |
dc.description.abstract | Liquid film thickness is an important parameter for predicting boiling and condensation heat transfer coefficients in microtube slug flows. In the present study, the effect of bubble deceleration on the liquid film thickness is experimentally investigated under adiabatic condition. The laser focus displacement meter is used to measure the liquid film thickness. Circular tubes with three different inner diameters, D = 0.7, 1.0 and 1.3 mm, are used. Measurement is carried out using a microtube with one open end and the other connected to an actuator motor. Water, ethanol and FC-40 are used as working fluids. It is found that deceleration makes the liquid film thicker than that in the steady flow, and it deviates from the steady case as the deceleration rate is increased. Liquid film thickness remains nearly unchanged just after the onset of deceleration, and then gradually decreases and eventually converges to the steady thickness as the velocity is further decreased. Finally, an empirical correlation is proposed to predict initial liquid film thickness in decelerated flows. (C) 2016 Elsevier Inc. All rights reserved. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE INC | - |
dc.subject | FOCUS DISPLACEMENT METER | - |
dc.subject | ACCELERATED SLUG FLOW | - |
dc.subject | CAPILLARY-TUBE | - |
dc.subject | HEAT-TRANSFER | - |
dc.subject | INITIAL FLOW | - |
dc.subject | WALL | - |
dc.subject | MICROCHANNELS | - |
dc.subject | DEPOSITION | - |
dc.subject | VELOCITY | - |
dc.subject | FLUID | - |
dc.title | The effect of bubble deceleration on the liquid film thickness in microtubes | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Han, Youngbae | - |
dc.identifier.doi | 10.1016/j.ijheatfluidflow.2016.01.002 | - |
dc.identifier.scopusid | 2-s2.0-84960416867 | - |
dc.identifier.wosid | 000374080400008 | - |
dc.identifier.bibliographicCitation | INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, v.58, pp.84 - 92 | - |
dc.relation.isPartOf | INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | - |
dc.citation.title | INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | - |
dc.citation.volume | 58 | - |
dc.citation.startPage | 84 | - |
dc.citation.endPage | 92 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Thermodynamics | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Mechanics | - |
dc.relation.journalWebOfScienceCategory | Thermodynamics | - |
dc.relation.journalWebOfScienceCategory | Engineering, Mechanical | - |
dc.relation.journalWebOfScienceCategory | Mechanics | - |
dc.subject.keywordPlus | FOCUS DISPLACEMENT METER | - |
dc.subject.keywordPlus | ACCELERATED SLUG FLOW | - |
dc.subject.keywordPlus | CAPILLARY-TUBE | - |
dc.subject.keywordPlus | HEAT-TRANSFER | - |
dc.subject.keywordPlus | INITIAL FLOW | - |
dc.subject.keywordPlus | WALL | - |
dc.subject.keywordPlus | MICROCHANNELS | - |
dc.subject.keywordPlus | DEPOSITION | - |
dc.subject.keywordPlus | VELOCITY | - |
dc.subject.keywordPlus | FLUID | - |
dc.subject.keywordAuthor | Liquid film thickness | - |
dc.subject.keywordAuthor | Two-phase flow | - |
dc.subject.keywordAuthor | Microtube | - |
dc.subject.keywordAuthor | Deceleration | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
94, Wausan-ro, Mapo-gu, Seoul, 04066, Korea02-320-1314
COPYRIGHT 2020 HONGIK UNIVERSITY. ALL RIGHTS RESERVED.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.