Spontaneous ignition: finite element solutions for steady and transient conditions
Book
·
OSTI ID:7327336
Steady-state and transient ignition problems are solved by the finite element method. Discretized equations for the reactive heat equation are set down using Galerkin's method. The steady-state discretized euqations are solved by an incremental Newton-Raphson procedure using the Frank-Kamenetskii parameter as the incremented or ''loading'' variable. Critical values of the Frank-Kamenetskii parameter are given for both common and unusual shapes using isoparametric finite elements to describe the geometrical features of the bodies. The transient ignition problem is solved by using the finite element spatial description together with a midinterval time differencing scheme.
- OSTI ID:
- 7327336
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
016000 -- Coal
Lignite
& Peat-- Health & Safety
CHEMICAL REACTIONS
COMBUSTION
FINITE ELEMENT METHOD
FUELS
GALERKIN-PETROV METHOD
ITERATIVE METHODS
MATHEMATICAL MODELS
NUMERICAL SOLUTION
OXIDATION
SOLID FUELS
SPONTANEOUS COMBUSTION
THERMOCHEMICAL PROCESSES
014000* -- Coal
Lignite
& Peat-- Combustion
016000 -- Coal
Lignite
& Peat-- Health & Safety
CHEMICAL REACTIONS
COMBUSTION
FINITE ELEMENT METHOD
FUELS
GALERKIN-PETROV METHOD
ITERATIVE METHODS
MATHEMATICAL MODELS
NUMERICAL SOLUTION
OXIDATION
SOLID FUELS
SPONTANEOUS COMBUSTION
THERMOCHEMICAL PROCESSES