TOSELLI BEATRIZ MARGARITA
Artículos
Título:
Fast and reliable numerical methods to solve complex chemical kinetics mechanisms. International
Autor/es:
LUIS E. OLCESE; BEATRIZ M. TOSELLI
Editorial:
JOHN WILEY & SONS INC
Referencias:
Año: 1998 p. 349 - 349
Resumen:
odels that simulate atmospheric photochemistry require the use of a
stiff ordinary differential equations (ODEs) solver. Since the
simulation of the chemical transformations taking place in the system
takes up to 80 percent of the CPU time, the numerical solver must be
computationally fast. Also, the residual error from the solver must be
small. Because most accurate solvers are relatively slow, modelers
continue to search for timely, yet accurate integration methods. Over
the past years an extensive number of articles have been dedicated to
this subject. One of the highly debated questions is whether one should
construct specialized algorithms or instead use general methods for
stiff ODEs. In the present article we use the second alternative. We
apply three linearly (semi-)implicit methods from the classical stiff
ODE literature which we modified to implement the sparse routines to
solve the system of equations describing a complex kinetic mechanism. ©
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