Development of droplet entrainment and deposition models for horizontal flow

Development of droplet entrainment and deposition models for horizontal flow

Models for the rate of atomization and deposition of droplets for stratified and annular flow in horizontal pipes are presented. The entrained fraction is the result of a balance between the rate of atomization of the liquid layer that is in contact with air and the rate of deposition of droplets. T...

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Main Authors: Joshua Kim Schimpf, Kyung Doo Kim, Jaeseok Heo, Byoung Jae Kim
Format: Article
Language:English
Published: Elsevier 2018-04-01
Series:Nuclear Engineering and Technology
Online Access:http://www.sciencedirect.com/science/article/pii/S173857331730534X
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spelling doaj-2aa4fbddddf34f8eb0f522c26d0b75682020-11-24T22:05:06ZengElsevierNuclear Engineering and Technology1738-57332018-04-01503379388Development of droplet entrainment and deposition models for horizontal flowJoshua Kim Schimpf0Kyung Doo Kim1Jaeseok Heo2Byoung Jae Kim3Advanced Nuclear Systems Engin., University of Science and Tech., 176 Gajeong-dong, Yuseong-gu, Daejeon, South KoreaThermal Hydraulics Safety Research Division, 989-111 Daedeok-daero, Yuseong-gu, Daejeon, 305-353, South Korea; Corresponding author.Thermal Hydraulics Safety Research Division, 989-111 Daedeok-daero, Yuseong-gu, Daejeon, 305-353, South KoreaSchool of Mechanical Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, South KoreaModels for the rate of atomization and deposition of droplets for stratified and annular flow in horizontal pipes are presented. The entrained fraction is the result of a balance between the rate of atomization of the liquid layer that is in contact with air and the rate of deposition of droplets. The rate of deposition is strongly affected by gravity in horizontal pipes. The gravitational settling of droplets is influenced by droplet size: heavier droplets deposit more rapidly. Model calculation and simulation results are compared with experimental data from various diameter pipes. Validation for the suggested models was performed by comparing the Safety and Performance Analysis Code for Nuclear Power Plants calculation results with the droplet experimental data obtained in various diameter horizontal pipes. Keywords: Annular Flow, Gas–Liquid Flow, Horizontal Pipe, Stratified Flowhttp://www.sciencedirect.com/science/article/pii/S173857331730534X
collection DOAJ
language English
format Article
sources DOAJ
author Joshua Kim Schimpf
Kyung Doo Kim
Jaeseok Heo
Byoung Jae Kim
spellingShingle Joshua Kim Schimpf
Kyung Doo Kim
Jaeseok Heo
Byoung Jae Kim
Development of droplet entrainment and deposition models for horizontal flow
Nuclear Engineering and Technology
author_facet Joshua Kim Schimpf
Kyung Doo Kim
Jaeseok Heo
Byoung Jae Kim
author_sort Joshua Kim Schimpf
title Development of droplet entrainment and deposition models for horizontal flow
title_short Development of droplet entrainment and deposition models for horizontal flow
title_full Development of droplet entrainment and deposition models for horizontal flow
title_fullStr Development of droplet entrainment and deposition models for horizontal flow
title_full_unstemmed Development of droplet entrainment and deposition models for horizontal flow
title_sort development of droplet entrainment and deposition models for horizontal flow
publisher Elsevier
series Nuclear Engineering and Technology
issn 1738-5733
publishDate 2018-04-01
description Models for the rate of atomization and deposition of droplets for stratified and annular flow in horizontal pipes are presented. The entrained fraction is the result of a balance between the rate of atomization of the liquid layer that is in contact with air and the rate of deposition of droplets. The rate of deposition is strongly affected by gravity in horizontal pipes. The gravitational settling of droplets is influenced by droplet size: heavier droplets deposit more rapidly. Model calculation and simulation results are compared with experimental data from various diameter pipes. Validation for the suggested models was performed by comparing the Safety and Performance Analysis Code for Nuclear Power Plants calculation results with the droplet experimental data obtained in various diameter horizontal pipes. Keywords: Annular Flow, Gas–Liquid Flow, Horizontal Pipe, Stratified Flow
url http://www.sciencedirect.com/science/article/pii/S173857331730534X
work_keys_str_mv AT joshuakimschimpf developmentofdropletentrainmentanddepositionmodelsforhorizontalflow
AT kyungdookim developmentofdropletentrainmentanddepositionmodelsforhorizontalflow
AT jaeseokheo developmentofdropletentrainmentanddepositionmodelsforhorizontalflow
AT byoungjaekim developmentofdropletentrainmentanddepositionmodelsforhorizontalflow
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