Search for dissertations about: "aeroacoustics"
Showing result 1 - 5 of 26 swedish dissertations containing the word aeroacoustics.
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1. Aeroacoustics Studies of Duct Branches with Application to Silencers
Abstract : New methodologies and concepts for developing compact and energy efficient automotive exhaust systems have been studied. This originates in the growing concern for global warming, to which road transportation is a major contributor. READ MORE
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2. A Wave Expansion Method for Aeroacoustic Propagation
Abstract : Although it is possible to directly solve an entire flow-acoustics problem in one computation, this approach remains prohibitively large in terms of the computational resource required for most practical applications. Aeroacoustic problems are therefore usually split into two parts; one consisting of the source computation and one of the source propagation. READ MORE
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3. Aeroacoustic Characterization using Multiport Methods
Abstract : Noise is a major environmental pollutant, which can inict physical and psychologicalinjury. An important noise contribution stems from aeroacousticsources, which are found in e.g., ventilation ducts, engine exhaust systems andairplane engines. READ MORE
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4. Experimental Studies on the Aeroacoustics of Low-Speed Axial Fans
Abstract : Low-speed axial fans are used in thermal management systems of internal combustion and electric vehicles. These systems are compact, cost-effective, all while addressing safety concerns. On the downside, fan operation leads to flow induced noise. READ MORE
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5. An experimental and numerical study of an automotive cooling module
Abstract : Heavy vehicles are major emitters of noise. Especially at idle or low vehicle speeds a large portion of the noise emanates from the fan that forces the flow through the cooling module. The aim of this work is to investigate and reveal aerodynamic and acoustic installation effects linked to the cooling package. READ MORE