dc.contributor	Simon Sylvio, Dr. : 66154
dc.contributor.advisor	Fraňa Karel, prof. Ing. Ph.D. : 55679
dc.contributor.author	Salem, Shehab
dc.date.accessioned	2019-05-21T16:56:45Z
dc.date.available	2019-05-21T16:56:45Z
dc.date.committed	2019-8-1
dc.date.defense	2018-6-14
dc.date.submitted	2018-2-1
dc.date.updated	2018-12-10
dc.degree.level	Ing.
dc.description.abstract	This report investigates the aero-acoustic noise generated by sheet metals of three different structures. The investigation is done both experimentally and numerically in order to find the sheet of best acoustic performance. Each sheet was tested experimentally in a wind tunnel in the velocity range of 9 to 20 m/s where the produced sound was recorded by a microphone. The experiment aimed at finding which sheet produces louder noise. Moreover, the velocity fluctuation after the sheets trailing edge was captured by a Hot Wire Anemometer to find the dominant frequency of vortices and calculate turbulence intensity. Finally, the case of highest velocity was numerically simulated using Ansys fluent where the simulation was validated by the experimental results. The numerical analysis used LES turbulence model with Kinetic Energy Transport sub-grid model. Ffowcs-Williams & Hawkings model was used to predict the acoustic sources. Agreements were found between the trend of acoustic noise produced from experiment and numerical simulation over some ranges of frequency.	cs
dc.description.abstract	This report investigates the aero-acoustic noise generated by sheet metals of three different structures. The investigation is done both experimentally and numerically in order to find the sheet of best acoustic performance. Each sheet was tested experimentally in a wind tunnel in the velocity range of 9 to 20 m/s where the produced sound was recorded by a microphone. The experiment aimed at finding which sheet produces louder noise. Moreover, the velocity fluctuation after the sheets trailing edge was captured by a Hot Wire Anemometer to find the dominant frequency of vortices and calculate turbulence intensity. Finally, the case of highest velocity was numerically simulated using Ansys fluent where the simulation was validated by the experimental results. The numerical analysis used LES turbulence model with Kinetic Energy Transport sub-grid model. Ffowcs-Williams & Hawkings model was used to predict the acoustic sources. Agreements were found between the trend of acoustic noise produced from experiment and numerical simulation over some ranges of frequency.	en
dc.description.mark
dc.format	73
dc.format.extent	Ilustrace, Grafy, Tabulky 1
dc.identifier.signature	V 201900436
dc.identifier.uri	https://dspace.tul.cz/handle/15240/152375
dc.language.iso	an
dc.relation.isbasedon	matsymblbrack1matsymbrbrack tpR.L.Webb, N.Kim, Principles of Enhanced Heat transfer. tpTaylor-Francis, 2005, ISBN 1-59169-014-5.
dc.rights	Vysokoškolská závěrečná práce je autorské dílo chráněné dle zákona č. 121/2000 Sb., autorský zákon, ve znění pozdějších předpisů. Je možné pořizovat z něj na své náklady a pro svoji osobní potřebu výpisy, opisy a rozmnoženiny. Jeho využití musí být v souladu s autorským zákonem https://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf a citační etikou https://knihovna.tul.cz/document/26	cs
dc.rights	A university thesis is a work protected by the Copyright Act. Extracts, copies and transcripts of the thesis are allowed for personal use only and at one?s own expense. The use of thesis should be in compliance with the Copyright Act. https://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf and the citation ethics https://knihovna.tul.cz/document/26	en
dc.rights.uri	https://knihovna.tul.cz/document/26
dc.rights.uri	https://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf
dc.subject	CFD	cs
dc.subject	Ansys Fluent	cs
dc.subject	Aero-Acoustic	cs
dc.subject	Ffowcs-Williams & Hawkings	cs
dc.subject	CFD	en
dc.subject	Ansys Fluent	en
dc.subject	Aero-Acoustic	en
dc.subject	Ffowcs-Williams & Hawkings	en
dc.subject.verbis	mechanical technologies	en
dc.title	Experimental and Numerical Investigation of the Metal Sheet for Automotive	cs
dc.title	Experimental and numerical investigation of the metal sheets for automotive	en
dc.type	diplomová práce	cs
local.degree.abbreviation	Navazující
local.degree.discipline	KSA
local.degree.programme	Mechanical Engineering
local.degree.programmeabbreviation	N2301
local.department.abbreviation	KEZ
local.faculty	Fakulta strojní	cs
local.faculty.abbreviation	FS
local.identifier.author	S16000459
local.identifier.stag	37936
local.identifier.verbis	kpw06580908
local.note.administrators	automat
local.poradovecislo	436
local.verbis.aktualizace	2019-10-05 07:26:56	cs
local.verbis.studijniprogram	KEZ Mechanical Engineering/Machines and Equipment Design	cs

Experimental and Numerical Investigation of the Metal Sheet for Automotive

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