An Annular Thermoacoustic Prime Mover
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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The dissertation constitutes the first detailed theoretical and experimental investigation of a thermoacoustic prime mover with periodic boundary conditions. There are five significant aspects to this research 1 using DeltaE to analyze an annular prime mover, 2 developing an entirely new analysis program using MATLAB, 3 designing, building, and experimentally investigating a single stack, annular prime mover, 4 experimentally investigating a constricted, single stack annular prime mover, 5 predicting the performance of a two stack annular prime mover. The major conclusions are 1 A single stack annular prime mover will not reach onset because the eigenmodes of the system do not support thermoacoustic growth. 2 A constricted annular prime mover will reach onset because the constriction forces dominating boundary conditions that alter the eigenmodes. 3 A two stack prime mover is predicted to reach onset because one of the eigenmodes of the symmetric system does support thermoacoustics.