Nonlinear correction method for locally and globally conservative thermo-fluid dynamic simulation for various types of engines and reactors: fundamental evaluation for single component of fluid and application to an engine

Abstract

We here propose a new nonlinear numerical method of local and global corrections for accurately evaluating thermal efficiency as result of spatially-integrated thermodynamic quantities, which is deeply related to total amount of CO2 exhausted, and also pollutant emissions including NOx in large eddy simulation of subsonic and supersonic flows of power systems. Detailed chemical reaction models alone are not enough for evaluating emissions. We here show computation results when the new nonlinear correction method is applied for single component flows, especially those in a new type of high thermal-efficiency engine proposed by Naitoh et al.