An engineering approach for the fast simulation of radial inflow turbines with vaneless spiral casing by single-channel CFD models

The basic RANS-CFD analysis of the simplest radial-inflow turbine configuration is the subject of this paper. An original technique is here proposed to model the effect of the vaneless spiral casing using single-channel CFD calculations and providing an effective alternative to the more complex simu...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Danieli Piero, Masi Massimo, Lazzaretto Andrea, Carraro Gianluca
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	cfd radial turbines preliminary design of turbomachinery multall Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/0ab7d28a24dd4b45adf8a6ab72e118db
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:0ab7d28a24dd4b45adf8a6ab72e118db
record_format	dspace
spelling	oai:doaj.org-article:0ab7d28a24dd4b45adf8a6ab72e118db2021-11-08T15:18:51ZAn engineering approach for the fast simulation of radial inflow turbines with vaneless spiral casing by single-channel CFD models2267-124210.1051/e3sconf/202131211003https://doaj.org/article/0ab7d28a24dd4b45adf8a6ab72e118db2021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/88/e3sconf_ati2021_11003.pdfhttps://doaj.org/toc/2267-1242The basic RANS-CFD analysis of the simplest radial-inflow turbine configuration is the subject of this paper. An original technique is here proposed to model the effect of the vaneless spiral casing using single-channel CFD calculations and providing an effective alternative to the more complex simulation of the 360-degree domain otherwise required to simulate this turbine configuration. The aim of the paper is to verify the effectiveness of the proposed modelling technique as a reliable engineering approach conceived to support the preliminary design phase of radial-inflow turbines with time-effective CFD calculations. To this end, the open-source CFD code MULTALL has been used to predict the aerodynamic performance of optimal designs of radial-inflow turbines with different specific speed and diameter and working with air as ideal gas. The MULTALL predictions are compared with the corresponding steady-state results obtained by calculations suited to the preliminary assessment of radial turbines designs performed on fully 360-degree turbine domains using the commercial code Star CCM+®. The investigation is conducted on two turbines that are designed in accordance with a widely validated method. The results show that the proposed CFD approach predicts well the trends and values of the aerodynamic performance of both the turbine designs: a 5% overestimation of the performance predicted by the fully 360-degree CFD models was never exceeded. The suggested turbine modelling approach implemented in MULTALL requires a three times lower computation time than the corresponding traditional 360-degree model.Danieli PieroMasi MassimoLazzaretto AndreaCarraro GianlucaEDP Sciencesarticlecfdradial turbinespreliminary design of turbomachinerymultallEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 312, p 11003 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	cfd radial turbines preliminary design of turbomachinery multall Environmental sciences GE1-350
spellingShingle	cfd radial turbines preliminary design of turbomachinery multall Environmental sciences GE1-350 Danieli Piero Masi Massimo Lazzaretto Andrea Carraro Gianluca An engineering approach for the fast simulation of radial inflow turbines with vaneless spiral casing by single-channel CFD models
description	The basic RANS-CFD analysis of the simplest radial-inflow turbine configuration is the subject of this paper. An original technique is here proposed to model the effect of the vaneless spiral casing using single-channel CFD calculations and providing an effective alternative to the more complex simulation of the 360-degree domain otherwise required to simulate this turbine configuration. The aim of the paper is to verify the effectiveness of the proposed modelling technique as a reliable engineering approach conceived to support the preliminary design phase of radial-inflow turbines with time-effective CFD calculations. To this end, the open-source CFD code MULTALL has been used to predict the aerodynamic performance of optimal designs of radial-inflow turbines with different specific speed and diameter and working with air as ideal gas. The MULTALL predictions are compared with the corresponding steady-state results obtained by calculations suited to the preliminary assessment of radial turbines designs performed on fully 360-degree turbine domains using the commercial code Star CCM+®. The investigation is conducted on two turbines that are designed in accordance with a widely validated method. The results show that the proposed CFD approach predicts well the trends and values of the aerodynamic performance of both the turbine designs: a 5% overestimation of the performance predicted by the fully 360-degree CFD models was never exceeded. The suggested turbine modelling approach implemented in MULTALL requires a three times lower computation time than the corresponding traditional 360-degree model.
format	article
author	Danieli Piero Masi Massimo Lazzaretto Andrea Carraro Gianluca
author_facet	Danieli Piero Masi Massimo Lazzaretto Andrea Carraro Gianluca
author_sort	Danieli Piero
title	An engineering approach for the fast simulation of radial inflow turbines with vaneless spiral casing by single-channel CFD models
title_short	An engineering approach for the fast simulation of radial inflow turbines with vaneless spiral casing by single-channel CFD models
title_full	An engineering approach for the fast simulation of radial inflow turbines with vaneless spiral casing by single-channel CFD models
title_fullStr	An engineering approach for the fast simulation of radial inflow turbines with vaneless spiral casing by single-channel CFD models
title_full_unstemmed	An engineering approach for the fast simulation of radial inflow turbines with vaneless spiral casing by single-channel CFD models
title_sort	engineering approach for the fast simulation of radial inflow turbines with vaneless spiral casing by single-channel cfd models
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/0ab7d28a24dd4b45adf8a6ab72e118db
work_keys_str_mv	AT danielipiero anengineeringapproachforthefastsimulationofradialinflowturbineswithvanelessspiralcasingbysinglechannelcfdmodels AT masimassimo anengineeringapproachforthefastsimulationofradialinflowturbineswithvanelessspiralcasingbysinglechannelcfdmodels AT lazzarettoandrea anengineeringapproachforthefastsimulationofradialinflowturbineswithvanelessspiralcasingbysinglechannelcfdmodels AT carrarogianluca anengineeringapproachforthefastsimulationofradialinflowturbineswithvanelessspiralcasingbysinglechannelcfdmodels AT danielipiero engineeringapproachforthefastsimulationofradialinflowturbineswithvanelessspiralcasingbysinglechannelcfdmodels AT masimassimo engineeringapproachforthefastsimulationofradialinflowturbineswithvanelessspiralcasingbysinglechannelcfdmodels AT lazzarettoandrea engineeringapproachforthefastsimulationofradialinflowturbineswithvanelessspiralcasingbysinglechannelcfdmodels AT carrarogianluca engineeringapproachforthefastsimulationofradialinflowturbineswithvanelessspiralcasingbysinglechannelcfdmodels
_version_	1718442014871126016

An engineering approach for the fast simulation of radial inflow turbines with vaneless spiral casing by single-channel CFD models

Ejemplares similares