Search for dissertations about: "Flow-Acoustic Interaction"
Showing result 1 - 5 of 7 swedish dissertations containing the words Flow-Acoustic Interaction.
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1. Experimental Investigation of the Acoustic Properties of Perforate using Acoustic Three-Ports
Abstract : This thesis discusses the aero-acoustic characterisation of a perforate sample using a three-port technique. A rectangular T-junction with a flush mounted perforated sample at the intersection form the acoustical three-port. READ MORE
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2. Flow Duct Acoustics : An LES Approach
Abstract : The search for quieter internal combustion engines drives the quest for a better understanding of the acoustic properties of engine duct components. Simulations are an important tool for enhanced understanding; they give insight into the flow-acoustic interaction in components where it is difficult to perform measurements. READ MORE
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3. 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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4. Assessing precision and accuracy in acoustic scattering matrix measurements
Abstract : Acoustic scattering matrices are used to characterize the influence of inline duct elements on the acoustic wave propagation in wave guides.When measuring the properties of these matrices, errors are always present in the results and need to be characterized to make valid statements on the correspondence between model predictions and measurements. READ MORE
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5. Operating conditions impact on flow and acoustics in turbocharger compressors
Abstract : Fluid machines are an integral part in energy conversion with applications from pumps, fans, propellers, compressors and turbines. In the automotive industry, turbochargers are commonly employed to counteract the effect of engine downsizing. READ MORE