A Critical Flow Model for Supercritical Pressures
The investigation of critical flow model for supercritical pressure condition is relatively rare. Based on isentropic flow and thermal equilibrium assumptions, a model is derived to calculate discharge flow rate and critical pressure. Considering the influence of friction and local resistance, a cor...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Frontiers Media S.A.
2020-10-01
|
Series: | Frontiers in Earth Science |
Subjects: | |
Online Access: | https://www.frontiersin.org/article/10.3389/fenrg.2020.521233/full |
id |
doaj-3ac7d3dd3e4644f3ad96ab974b60667a |
---|---|
record_format |
Article |
spelling |
doaj-3ac7d3dd3e4644f3ad96ab974b60667a2020-11-25T03:57:32ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632020-10-01810.3389/fenrg.2020.521233521233A Critical Flow Model for Supercritical PressuresYufeng LvMinfu ZhaoKaiwen DuThe investigation of critical flow model for supercritical pressure condition is relatively rare. Based on isentropic flow and thermal equilibrium assumptions, a model is derived to calculate discharge flow rate and critical pressure. Considering the influence of friction and local resistance, a correction coefficient is added which can be calculated from CFX analysis software. The model avoids the calculation of quality and is applicable to wide range which covering the subcooled water, two-phase mixture, steam critical flow under subcritical pressure and supercritical pressure. Reasonable agreement is shown between model predicted results and experiment data, illustrating the accuracy of the proposed model.https://www.frontiersin.org/article/10.3389/fenrg.2020.521233/fullcritical flowsupercritical water cooled reactorloss of coolant accidentthermal equilibrium effectresistance coefficient |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yufeng Lv Minfu Zhao Kaiwen Du |
spellingShingle |
Yufeng Lv Minfu Zhao Kaiwen Du A Critical Flow Model for Supercritical Pressures Frontiers in Earth Science critical flow supercritical water cooled reactor loss of coolant accident thermal equilibrium effect resistance coefficient |
author_facet |
Yufeng Lv Minfu Zhao Kaiwen Du |
author_sort |
Yufeng Lv |
title |
A Critical Flow Model for Supercritical Pressures |
title_short |
A Critical Flow Model for Supercritical Pressures |
title_full |
A Critical Flow Model for Supercritical Pressures |
title_fullStr |
A Critical Flow Model for Supercritical Pressures |
title_full_unstemmed |
A Critical Flow Model for Supercritical Pressures |
title_sort |
critical flow model for supercritical pressures |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Earth Science |
issn |
2296-6463 |
publishDate |
2020-10-01 |
description |
The investigation of critical flow model for supercritical pressure condition is relatively rare. Based on isentropic flow and thermal equilibrium assumptions, a model is derived to calculate discharge flow rate and critical pressure. Considering the influence of friction and local resistance, a correction coefficient is added which can be calculated from CFX analysis software. The model avoids the calculation of quality and is applicable to wide range which covering the subcooled water, two-phase mixture, steam critical flow under subcritical pressure and supercritical pressure. Reasonable agreement is shown between model predicted results and experiment data, illustrating the accuracy of the proposed model. |
topic |
critical flow supercritical water cooled reactor loss of coolant accident thermal equilibrium effect resistance coefficient |
url |
https://www.frontiersin.org/article/10.3389/fenrg.2020.521233/full |
work_keys_str_mv |
AT yufenglv acriticalflowmodelforsupercriticalpressures AT minfuzhao acriticalflowmodelforsupercriticalpressures AT kaiwendu acriticalflowmodelforsupercriticalpressures AT yufenglv criticalflowmodelforsupercriticalpressures AT minfuzhao criticalflowmodelforsupercriticalpressures AT kaiwendu criticalflowmodelforsupercriticalpressures |
_version_ |
1724460262126256128 |