Direct sensitivity analysis for ignition delay times
The sensitivity coefficients of ignition delay time with respect to chemical kinetic rate parameters is traditionally calculated using a brute force approach wherein the number of initial value problems solved is no fewer than the number of rate parameters. By reformulating the underlying initial va...
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| Veröffentlicht in: | Combustion and flame 2019-11, Vol.209, p.478-480 |
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| container_title | Combustion and flame |
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| creator | Gururajan, Vyaas Egolfopoulos, Fokion N. |
| description | The sensitivity coefficients of ignition delay time with respect to chemical kinetic rate parameters is traditionally calculated using a brute force approach wherein the number of initial value problems solved is no fewer than the number of rate parameters. By reformulating the underlying initial value problem as a boundary value problem, it is shown that the sensitivity coefficients can be extracted directly, accelerating thus the computational time by at least an order of magnitude. This has far reaching consequences in kinetic model development and optimization, especially when a large number of rate constants are involved. |
| doi_str_mv | 10.1016/j.combustflame.2019.08.007 |
| format | Article |
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By reformulating the underlying initial value problem as a boundary value problem, it is shown that the sensitivity coefficients can be extracted directly, accelerating thus the computational time by at least an order of magnitude. 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| ispartof | Combustion and flame, 2019-11, Vol.209, p.478-480 |
| issn | 0010-2180 1556-2921 |
| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Boundary value problems Chemical kinetics Computing time Delay time analysis Ignition Jacobian Optimization Organic chemistry Parameters Rate constants Sensitivity Sensitivity analysis |
| title | Direct sensitivity analysis for ignition delay times |
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