Mathematical modeling and numerical investigation of density wave instability of supercritical natural circulation loop

In present paper, a mathematical model based on the one dimensional nonlinear mass, momentum and energy conservation equations has been developed to study the density wave instability (DWI) in horizontal heater and horizontal cooler supercritical water natural circulation loop (HHHC-SCWNCL). The one...

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Autores principales:	Rai Santosh Kumar, Ahlawat Neha, Kumar Pardeep, Panwar Vinay
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/c686766828104ed486484c88d6538312
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spelling	oai:doaj.org-article:c686766828104ed486484c88d65383122021-11-12T11:44:34ZMathematical modeling and numerical investigation of density wave instability of supercritical natural circulation loop2267-124210.1051/e3sconf/202132104004https://doaj.org/article/c686766828104ed486484c88d65383122021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/97/e3sconf_icchmt2021_04004.pdfhttps://doaj.org/toc/2267-1242In present paper, a mathematical model based on the one dimensional nonlinear mass, momentum and energy conservation equations has been developed to study the density wave instability (DWI) in horizontal heater and horizontal cooler supercritical water natural circulation loop (HHHC-SCWNCL). The one dimensional nonlinear mass, momentum and energy conservation equations are discretized by using finite difference method (FDM). The numerical model is validated with the benchmark results (NOLSTA model). Numerical simulations are performed to find the threshold stability zone (TSZ) and draw the stability map for natural circulation loop. Further, effect of change in diameter and riser height on the density wave instability of SCWNCL has been investigated.Rai Santosh KumarAhlawat NehaKumar PardeepPanwar VinayEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 321, p 04004 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Rai Santosh Kumar Ahlawat Neha Kumar Pardeep Panwar Vinay Mathematical modeling and numerical investigation of density wave instability of supercritical natural circulation loop
description	In present paper, a mathematical model based on the one dimensional nonlinear mass, momentum and energy conservation equations has been developed to study the density wave instability (DWI) in horizontal heater and horizontal cooler supercritical water natural circulation loop (HHHC-SCWNCL). The one dimensional nonlinear mass, momentum and energy conservation equations are discretized by using finite difference method (FDM). The numerical model is validated with the benchmark results (NOLSTA model). Numerical simulations are performed to find the threshold stability zone (TSZ) and draw the stability map for natural circulation loop. Further, effect of change in diameter and riser height on the density wave instability of SCWNCL has been investigated.
format	article
author	Rai Santosh Kumar Ahlawat Neha Kumar Pardeep Panwar Vinay
author_facet	Rai Santosh Kumar Ahlawat Neha Kumar Pardeep Panwar Vinay
author_sort	Rai Santosh Kumar
title	Mathematical modeling and numerical investigation of density wave instability of supercritical natural circulation loop
title_short	Mathematical modeling and numerical investigation of density wave instability of supercritical natural circulation loop
title_full	Mathematical modeling and numerical investigation of density wave instability of supercritical natural circulation loop
title_fullStr	Mathematical modeling and numerical investigation of density wave instability of supercritical natural circulation loop
title_full_unstemmed	Mathematical modeling and numerical investigation of density wave instability of supercritical natural circulation loop
title_sort	mathematical modeling and numerical investigation of density wave instability of supercritical natural circulation loop
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/c686766828104ed486484c88d6538312
work_keys_str_mv	AT raisantoshkumar mathematicalmodelingandnumericalinvestigationofdensitywaveinstabilityofsupercriticalnaturalcirculationloop AT ahlawatneha mathematicalmodelingandnumericalinvestigationofdensitywaveinstabilityofsupercriticalnaturalcirculationloop AT kumarpardeep mathematicalmodelingandnumericalinvestigationofdensitywaveinstabilityofsupercriticalnaturalcirculationloop AT panwarvinay mathematicalmodelingandnumericalinvestigationofdensitywaveinstabilityofsupercriticalnaturalcirculationloop
_version_	1718430579186204672

Mathematical modeling and numerical investigation of density wave instability of supercritical natural circulation loop

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