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Usage of optimization methods for determination of combustion model parametersLešnik, Luka ; Kegl, BredaThis paper presents an innovative method for determination of combustion model parameters by using optimization methods. The accuracy of combustion models depends highly on proper ... selection/determination of combustion model parameters. The model parameters of a phenomenological combustion model in an internal combustion engine depend on the engine's design and operating conditions, and need to be determined for each engine type and operating condition separately. These parameters are often determined manually, based onthe results of experimental measurements that require several simulation test runs and need to be repeated for every operational regime of the simulated engine and every used fuel or biofuel. The determination of the AVL MCC combustion model parameters in this paper is defined as an inverse problem which is solved by using various optimization methods. Three different optimization methods with different search techniques were tested on one operating regime of the ESC 13 mode test. All the optimization methods were able to determine the combustion model parameters and the obtained results agree well with the experimental results. According to the results, the L-M method was selected as the most promising for further determination of the combustion model parameters. The main advantages of the L-M method are fast convergence (low computation time) and good agreement with the experimental results.Source: IN-TECH 2013 : proceedings (Str. 33-36)Type of material - conference contributionPublish date - 2013Language - englishCOBISS.SI-ID - 17179414
Author
Lešnik, Luka |
Kegl, Breda
Topics
AVL MCC combustion model |
parameters |
optimziation method |
AVL BOOST
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Lešnik, Luka | 33258 |
Kegl, Breda | 01365 |
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