The impact of turbulence models on the simulation of residence time distribution in a multichamber ozone contactor

The flow and tracer transport in an ozone contactor is simulated by using computational fluid dynamics. The standard k- model, RNG k- model, realizable k- model and SST k- model are used to describe turbulence. A step change method is used to simulate the residence time distribution. The residence t...

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Autores principales:	Shijian Peng, Baoqing Deng, Jiming Wu, Liangtian Xu
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	computational fluid dynamics ozone contactor residence time distribution Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/cbdb6c5a6a7b49dc954d8db7917057dd
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spelling	oai:doaj.org-article:cbdb6c5a6a7b49dc954d8db7917057dd2021-11-23T18:57:13ZThe impact of turbulence models on the simulation of residence time distribution in a multichamber ozone contactor1606-97491607-079810.2166/ws.2021.154https://doaj.org/article/cbdb6c5a6a7b49dc954d8db7917057dd2021-11-01T00:00:00Zhttp://ws.iwaponline.com/content/21/7/3976https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798The flow and tracer transport in an ozone contactor is simulated by using computational fluid dynamics. The standard k- model, RNG k- model, realizable k- model and SST k- model are used to describe turbulence. A step change method is used to simulate the residence time distribution. The residence time and cumulative residence time are compared with laboratory experiments. All turbulence models can capture the feature of the residence time distribution and cumulative residence time distribution. The residence time distribution in the initial period is sensitive to the used turbulence model, which can affect the value of Morrill dispersion index. The standard k- model behaves better among four turbulence models. HIGHLIGHTS RTD in the initial period is sensitive to turbulence models.; MDI is greatly affected by turbulence models.; The standard k-ɛ model behaves better among four turbulence models.;Shijian PengBaoqing DengJiming WuLiangtian XuIWA Publishingarticlecomputational fluid dynamicsozone contactorresidence time distributionWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 7, Pp 3976-3986 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	computational fluid dynamics ozone contactor residence time distribution Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	computational fluid dynamics ozone contactor residence time distribution Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Shijian Peng Baoqing Deng Jiming Wu Liangtian Xu The impact of turbulence models on the simulation of residence time distribution in a multichamber ozone contactor
description	The flow and tracer transport in an ozone contactor is simulated by using computational fluid dynamics. The standard k- model, RNG k- model, realizable k- model and SST k- model are used to describe turbulence. A step change method is used to simulate the residence time distribution. The residence time and cumulative residence time are compared with laboratory experiments. All turbulence models can capture the feature of the residence time distribution and cumulative residence time distribution. The residence time distribution in the initial period is sensitive to the used turbulence model, which can affect the value of Morrill dispersion index. The standard k- model behaves better among four turbulence models. HIGHLIGHTS RTD in the initial period is sensitive to turbulence models.; MDI is greatly affected by turbulence models.; The standard k-ɛ model behaves better among four turbulence models.;
format	article
author	Shijian Peng Baoqing Deng Jiming Wu Liangtian Xu
author_facet	Shijian Peng Baoqing Deng Jiming Wu Liangtian Xu
author_sort	Shijian Peng
title	The impact of turbulence models on the simulation of residence time distribution in a multichamber ozone contactor
title_short	The impact of turbulence models on the simulation of residence time distribution in a multichamber ozone contactor
title_full	The impact of turbulence models on the simulation of residence time distribution in a multichamber ozone contactor
title_fullStr	The impact of turbulence models on the simulation of residence time distribution in a multichamber ozone contactor
title_full_unstemmed	The impact of turbulence models on the simulation of residence time distribution in a multichamber ozone contactor
title_sort	impact of turbulence models on the simulation of residence time distribution in a multichamber ozone contactor
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/cbdb6c5a6a7b49dc954d8db7917057dd
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The impact of turbulence models on the simulation of residence time distribution in a multichamber ozone contactor

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