CFD Based Non-Dimensional Characterization of Energy Dissipation Due to Verticle Slosh

We present the CFD based non-dimensional characterization of violent slosh induced energy dissipation due a tank under vertical excitation. Experimentally validated CFD is used for this purpose as an ideally suited and versatile tool. It is thus first demonstrated that a weakly compressible VoF base...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Michael Dennis Wright, Francesco Gambioli, Arnaud George Malan
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	multi-phase flows non-dimensional analysis violent slosh induced energy dissipation volume of fluid (VoF) method computational fluid dynamics (CFD) Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/5f13ff30fabb4426a7e589d6c3dddb42
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:5f13ff30fabb4426a7e589d6c3dddb42
record_format	dspace
spelling	oai:doaj.org-article:5f13ff30fabb4426a7e589d6c3dddb422021-11-11T15:24:00ZCFD Based Non-Dimensional Characterization of Energy Dissipation Due to Verticle Slosh10.3390/app1121104012076-3417https://doaj.org/article/5f13ff30fabb4426a7e589d6c3dddb422021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10401https://doaj.org/toc/2076-3417We present the CFD based non-dimensional characterization of violent slosh induced energy dissipation due a tank under vertical excitation. Experimentally validated CFD is used for this purpose as an ideally suited and versatile tool. It is thus first demonstrated that a weakly compressible VoF based CFD scheme is capable of computing violent slosh induced energy dissipation with high accuracy. The resulting CFD based energy analysis further informs that the main source of energy dissipation during violent slosh is due liquid impact. Next, a functional relationship characterising slosh induced energy dissipation is formulated in terms of fluid physics based non-dimensional numbers. These comprised contact angle and liquid–gas density ratio as well as Reynolds, Weber and Froude numbers. The Froude number is found the most significant in characterising verticle violent slosh induced energy dissipation (in the absence of significant phase change). The validated CFD is consequently employed to develop scaling laws (curve fits) which quantify energy dissipation as a function of the most important fluid physics non-dimensional numbers. These newly developed scaling laws show for the first time that slosh induced energy dissipation may be expressed as a quadratic function of Froude number and as a linear function of liquid–gas density ratio. Based on the aforementioned it is postulated that violent slosh induced energy dissipation may be expressed as a linear function of tank kinetic energy. The article is concluded by demonstrating the practical use of the novel CFD derived non-dimensional scaling laws to infer slosh induced energy dissipation for ideal experiments (with exact fluid physics similarity to the full scale Aircraft) from (non-ideal) slosh experiments.Michael Dennis WrightFrancesco GambioliArnaud George MalanMDPI AGarticlemulti-phase flowsnon-dimensional analysisviolent slosh induced energy dissipationvolume of fluid (VoF) methodcomputational fluid dynamics (CFD)TechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10401, p 10401 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	multi-phase flows non-dimensional analysis violent slosh induced energy dissipation volume of fluid (VoF) method computational fluid dynamics (CFD) Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	multi-phase flows non-dimensional analysis violent slosh induced energy dissipation volume of fluid (VoF) method computational fluid dynamics (CFD) Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Michael Dennis Wright Francesco Gambioli Arnaud George Malan CFD Based Non-Dimensional Characterization of Energy Dissipation Due to Verticle Slosh
description	We present the CFD based non-dimensional characterization of violent slosh induced energy dissipation due a tank under vertical excitation. Experimentally validated CFD is used for this purpose as an ideally suited and versatile tool. It is thus first demonstrated that a weakly compressible VoF based CFD scheme is capable of computing violent slosh induced energy dissipation with high accuracy. The resulting CFD based energy analysis further informs that the main source of energy dissipation during violent slosh is due liquid impact. Next, a functional relationship characterising slosh induced energy dissipation is formulated in terms of fluid physics based non-dimensional numbers. These comprised contact angle and liquid–gas density ratio as well as Reynolds, Weber and Froude numbers. The Froude number is found the most significant in characterising verticle violent slosh induced energy dissipation (in the absence of significant phase change). The validated CFD is consequently employed to develop scaling laws (curve fits) which quantify energy dissipation as a function of the most important fluid physics non-dimensional numbers. These newly developed scaling laws show for the first time that slosh induced energy dissipation may be expressed as a quadratic function of Froude number and as a linear function of liquid–gas density ratio. Based on the aforementioned it is postulated that violent slosh induced energy dissipation may be expressed as a linear function of tank kinetic energy. The article is concluded by demonstrating the practical use of the novel CFD derived non-dimensional scaling laws to infer slosh induced energy dissipation for ideal experiments (with exact fluid physics similarity to the full scale Aircraft) from (non-ideal) slosh experiments.
format	article
author	Michael Dennis Wright Francesco Gambioli Arnaud George Malan
author_facet	Michael Dennis Wright Francesco Gambioli Arnaud George Malan
author_sort	Michael Dennis Wright
title	CFD Based Non-Dimensional Characterization of Energy Dissipation Due to Verticle Slosh
title_short	CFD Based Non-Dimensional Characterization of Energy Dissipation Due to Verticle Slosh
title_full	CFD Based Non-Dimensional Characterization of Energy Dissipation Due to Verticle Slosh
title_fullStr	CFD Based Non-Dimensional Characterization of Energy Dissipation Due to Verticle Slosh
title_full_unstemmed	CFD Based Non-Dimensional Characterization of Energy Dissipation Due to Verticle Slosh
title_sort	cfd based non-dimensional characterization of energy dissipation due to verticle slosh
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/5f13ff30fabb4426a7e589d6c3dddb42
work_keys_str_mv	AT michaeldenniswright cfdbasednondimensionalcharacterizationofenergydissipationduetoverticleslosh AT francescogambioli cfdbasednondimensionalcharacterizationofenergydissipationduetoverticleslosh AT arnaudgeorgemalan cfdbasednondimensionalcharacterizationofenergydissipationduetoverticleslosh
_version_	1718435367408893952

CFD Based Non-Dimensional Characterization of Energy Dissipation Due to Verticle Slosh

Ejemplares similares