Search for dissertations about: "Nonreflecting Boundary Conditions"
Found 3 swedish dissertations containing the words Nonreflecting Boundary Conditions.
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1. Non-reflecting Boundary Conditions for Wave Propagation Problems
Abstract : We consider two aspects of non-reflecting boundaryconditions for wave propagation problems. First we evaluate aproposed Perfectly Matched Layer (PML) method for thesimulation of advective acoustics. It is shown that theproposed PML becomes unstable for a certain combination ofparameters. A stabilizing procedure is proposed andimplemented. READ MORE
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2. Numerical Methods for Aeroacoustic Analysis of Turbomachines
Abstract : Numerical simulations are important tools for developing new aircraft that can meet future needs. When numerical simulations are used to compute aircraft noise, a two-step procedure is often employed. In the first step, the noise sources are determined using, e.g. READ MORE
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3. A Linearized Euler Method for Unsteady Flow in Axial-Flow Turbomachines
Abstract : A linear Euler method for analysing unsteady inviscid compressible quasi three- dimensional flows in oscillating cascades is developed. It is applicable to both blade flutter and forced response problems. READ MORE