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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Anechoic Chamber Application
 Lasota, Martin ; Janoušek, Michal (referee) ; Prokop, Aleš (advisor)
This bachelor's thesis presents evaluating of acoustic variables and anechoic chamber application. There are described physical requirements for the anechoic chambers. Part of this thesis deals with measurement of audio signals to calculation sound pressure level. The last part of this work includes audio signals of two microphone positions during the measurement sound source and finally their processing and evaluation.
Detailed record
Numerical modeling of the water cooled charge air cooler in/out chamber leading to development of the analytical model
 Lasota, Martin ; Pavlica, Ondřej (referee) ; Pokorný, Jan (advisor)
Diploma thesis deals with numerical simulations of an air flow in a water cooled charge air cooler (WCAC), specifically with pressure drops in inlet/outlet chamber. The simulations have been performed in a proprietary software Star-CCM+. Physical phenomena have been solved by the Reynolds-averaged Navier-Stokes (RANS) equations and consequently a matrix of pressure drops for miscellaneous variations of chamber's geometry and the initial flow conditions has been created. Based on the CFD results, dependence between calculated pressure drops and changing parameters has been analyzed and finally a 1D solver has been developed and implemented into a software OpenModelica.
Detailed record
Anechoic Chamber Application
 Lasota, Martin ; Janoušek, Michal (referee) ; Prokop, Aleš (advisor)
This bachelor's thesis presents evaluating of acoustic variables and anechoic chamber application. There are described physical requirements for the anechoic chambers. Part of this thesis deals with measurement of audio signals to calculation sound pressure level. The last part of this work includes audio signals of two microphone positions during the measurement sound source and finally their processing and evaluation.
Detailed record

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4 Lasota, Marek
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