OPUS: A Fortran Program for Unsteady Opposed-Flowed Flames

Im, H. G. ; Raja, L. L. ; Kee, R. J. ; Lutz, A. E. ; Petzold, L. R.

Sandia National Laboratories

关键词: 37 Inorganic, Organic, Physical And Analytical Chemistry;    99 General And Miscellaneous//Mathematics, Computing, And Information Science;    Flames;    Documentation;    Unsteady Flow;   

DOI  :  10.2172/759209
RP-ID  :  SAND2000-8211
RP-ID  :  AC04-94AL85000
RP-ID  :  759209

美国|英语

来源: UNT Digital Library

【 摘 要 】

OPUS is a Fortran program for computing unsteady combustion problems in an opposed-flow configuration using one-dimensional similarity coordinate. The code is an extension of the steady counterpart, OPPDIF, to transient problems by modifying the formulation to accommodate gasdynamic compressibility effects, allowing high-accuracy time integration with adaptive time stepping. Time integration of the differential-algebraic system of equations is performed by the DASPK software package, while the Chemkin packages are used to compute chemical reaction rates and thermodynamic/transport properties. This document describes the details of the mathematical formulation and instruction for using the code.