Essays about: "comsol sound propagation"

Found 3 essays containing the words comsol sound propagation.

1. 1. Prediction of Sound Propagation From Power Transmission Plant

   University essay from KTH/MWL Marcus Wallenberg Laboratoriet

   Author : Sun Jingchao; [2013]
   Keywords : ;

   Abstract : In ABB, Soundplan is the usually used software to predict the industrial noise for power transmission plants. However, the sound sources in Soundplan are modeled as point sources between which there are no sound reflections. For the real situation, the sound sources are very big and can be regarded as noise barriers. READ MORE

3. 2. Simulations of sound propagation at a duct termination with flow

   University essay from KTH/Aeroakustik

   Author : Parinaz Sedarati; [2011]
   Keywords : ;

   Abstract : Both theoretically as well as in many applications like exhaust systems, ventilation pipes, mufflers, air intakes and also large scale industrial smoke stacks, it is of interest to understand how sound waves are scattered at duct exists. Especially for aeronautical application such as jet engines, the effect of coupling of acoustics and flow on sound radiation and reflection from a duct termination in a uniform is an important problem. READ MORE

4. 3. Sound Phase Change over Barriers

   University essay from Blekinge Tekniska Högskola/Avdelningen för maskinteknik

   Author : Mehmet Yalcin YAGCI; [2009]
   Keywords : Noise Barriers; Sound Phase Change; Room Acoustics; Wave Propagation; Sine Wave; Comsol Multiphysics; MATLAB;

   Abstract : Noise Barriers are used for cancellation of sound from roads. Sound of different frequencies travel differently over the top of the barriers. Design of barriers differ. Sound phase change can play an important role in noise cancellation. READ MORE