Application of Spectral Element Method in Low Mach Number Combustion

• Main Authors: LIU, TOUNG-YI, 劉東易
• Other Authors: REY-HOR YEN
• Format: Others
• Language: zh-TW
• Published: 1997
• Online Access: http://ndltd.ncl.edu.tw/handle/85207283581743386482

碩士 === 國立臺灣大學 === 機械工程學系 === 85 === Application of Spectral Element Method in Low Mach Number Combustion ABSTRACT In this work,Low Mach Number combustion problems were investigated. The fully compressible flow eqations were simplified by the Low Mach Number approximation . The approximate equations can filter high frequency wave to allow largertime steps to be talken in numerical soluation.In this thesis ,we use spectarl element method for sptail discretization of governing equations and high ordersplitting method for temporal discretization.To validate the numerical accuracusome benchmark solutions were compared.The numerical solution for incompressiblewas compared with the incompreesibe code which has developed in the previouswork. For two-dimensional compressible combustion problem,We simualte mixing layer under chemical reaction.The results indicate that rate of chemical product formed and the amount of mass entrained to the layer all decrease withincreasing rates of heat release.