On the use of the Prandtl mixing length model in the cutting torch modeling

The Prandtl mixing length model has been used to take into account the turbulent effects in a 30 A high-energy density cutting torch model. In particular, the model requires the introduction of only one adjustable coefficient c corresponding to the length of action of the turbulence. It is shown tha...

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Detalles Bibliográficos
Autores principales:	Mancinelli, B., Minotti, F.O., Kelly, H.
Formato:	CONF
Materias:	Nozzles Adjustable coefficient C values Cutting torch Experimental uncertainty High energy densities Mixing length Plasma temperature Turbulent effects Mixing
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_17426588_v296_n1_p_Mancinelli
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_17426588_v296_n1_p_Mancinelli
record_format	dspace
spelling	todo:paper_17426588_v296_n1_p_Mancinelli2023-10-03T16:30:37Z On the use of the Prandtl mixing length model in the cutting torch modeling Mancinelli, B. Minotti, F.O. Kelly, H. Nozzles Adjustable coefficient C values Cutting torch Experimental uncertainty High energy densities Mixing length Plasma temperature Turbulent effects Mixing The Prandtl mixing length model has been used to take into account the turbulent effects in a 30 A high-energy density cutting torch model. In particular, the model requires the introduction of only one adjustable coefficient c corresponding to the length of action of the turbulence. It is shown that the c value has little effect on the plasma temperature profiles outside the nozzle (the differences being less than 10 %), but severely affects the plasma velocity distribution, with differences reaching about 100 % at the middle of the nozzle-anode gap. Within the experimental uncertainties it was also found that the value c = 0.08 allows to reproduce both, the experimental data of velocity and temperature. CONF info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_17426588_v296_n1_p_Mancinelli
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Nozzles Adjustable coefficient C values Cutting torch Experimental uncertainty High energy densities Mixing length Plasma temperature Turbulent effects Mixing
spellingShingle	Nozzles Adjustable coefficient C values Cutting torch Experimental uncertainty High energy densities Mixing length Plasma temperature Turbulent effects Mixing Mancinelli, B. Minotti, F.O. Kelly, H. On the use of the Prandtl mixing length model in the cutting torch modeling
topic_facet	Nozzles Adjustable coefficient C values Cutting torch Experimental uncertainty High energy densities Mixing length Plasma temperature Turbulent effects Mixing
description	The Prandtl mixing length model has been used to take into account the turbulent effects in a 30 A high-energy density cutting torch model. In particular, the model requires the introduction of only one adjustable coefficient c corresponding to the length of action of the turbulence. It is shown that the c value has little effect on the plasma temperature profiles outside the nozzle (the differences being less than 10 %), but severely affects the plasma velocity distribution, with differences reaching about 100 % at the middle of the nozzle-anode gap. Within the experimental uncertainties it was also found that the value c = 0.08 allows to reproduce both, the experimental data of velocity and temperature.
format	CONF
author	Mancinelli, B. Minotti, F.O. Kelly, H.
author_facet	Mancinelli, B. Minotti, F.O. Kelly, H.
author_sort	Mancinelli, B.
title	On the use of the Prandtl mixing length model in the cutting torch modeling
title_short	On the use of the Prandtl mixing length model in the cutting torch modeling
title_full	On the use of the Prandtl mixing length model in the cutting torch modeling
title_fullStr	On the use of the Prandtl mixing length model in the cutting torch modeling
title_full_unstemmed	On the use of the Prandtl mixing length model in the cutting torch modeling
title_sort	on the use of the prandtl mixing length model in the cutting torch modeling
url	http://hdl.handle.net/20.500.12110/paper_17426588_v296_n1_p_Mancinelli
work_keys_str_mv	AT mancinellib ontheuseoftheprandtlmixinglengthmodelinthecuttingtorchmodeling AT minottifo ontheuseoftheprandtlmixinglengthmodelinthecuttingtorchmodeling AT kellyh ontheuseoftheprandtlmixinglengthmodelinthecuttingtorchmodeling
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On the use of the Prandtl mixing length model in the cutting torch modeling

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