Please use this identifier to cite or link to this item: http://prr.hec.gov.pk/jspui/handle/123456789/9492
Title: Acoustic Scattering from Different Geometries; Eigenfunction Mode Matching Technique
Authors: Bashir, Amna.
Keywords: Natural Sciences
Mathematics
Issue Date: 2018
Publisher: COMSATS University Islamabad-Pakistan
Abstract: In this thesis we solve and compare two tri and penta furcated waveguide problems having rigid and soft lining by using mode matching technique. We also study the phenomenon of extraordinary acoustic transmission (EAT) in Helmholtz resonator. It is shown that combination of a single propagating mode and symmetry orthogonal to direction of propagation leads to EAT. This is accomplished by decomposing the problem using symmetry, the Blaschke product and the properties of functions of a single complex variable which have modulus one on the real axis. A detailed numerical study has been presented to analyze reflection and transmission behaviour to probe the acoustic radiated energy. These results can be used in noise reduction devices and theory of acoustics.
URI: http://prr.hec.gov.pk/jspui/handle/123456789/9492
Appears in Collections:PhD Thesis of All Public / Private Sector Universities / DAIs.

Files in This Item:
File Description SizeFormat 
Initial Pages.pdf85.92 kBAdobe PDFView/Open
main_thesis.pdf5.96 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.