Optimization of one-parameter family of integration formulae for solving stiff chemical-kinetic ODEs

被引:6
作者
Morii, Youhi [1 ]
Shima, Eiji [2 ]
机构
[1] Tohoku Univ, Inst Fluid Sci, Sendai, Miyagi 9808577, Japan
[2] Japan Aerosp Explorat Agcy, Res & Dev Directorate, Sagamihara, Kanagawa 2525210, Japan
关键词
COMBUSTION; MECHANISMS; SOLVER;
D O I
10.1038/s41598-020-78301-6
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
A fast and robust Jacobian-free time-integration method-called Minimum-error Adaptation of a Chemical-Kinetic ODE Solver (MACKS)-for solving stiff ODEs pertaining to chemical-kinetics is proposed herein. The MACKS formulation is based on optimization of the one-parameter family of integration formulae coupled with a dual time-stepping method to facilitate error minimization. The proposed method demonstrates higher accuracy compared to the method-Extended Robustness-enhanced numerical algorithm (ERENA)-previously proposed by the authors. Additionally, when this method is employed in homogeneous-ignition simulations, it facilitates realization of faster performance compared to CVODE.
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页数:13
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