Modélisation d'un écoulement forcé dans une soufflerie. Identification et optimisation paramétrique

被引：0
|
作者：
Unité de Recherche Renewable Energies and ELEctric Vehicles , Ecole Nationale d'Ingénieurs de Sfax, BP W., 3038, Sfax, Tunisia [1 ]
不详 [2 ]
机构：
来源：
J. Eur. Syst. Autom. | 2006年 / 4-5卷 / 419-441期
关键词：
Dynamic analysis - Forced convection - Genetic algorithms - Least squares approximations - Mathematical models - Optimization - Parameter estimation - Partial differential equations;
D O I：
10.3166/jesa.40.419-441
中图分类号：
学科分类号：
摘要：
In this paper, a model of a forced flow in a cylindrical channel is presented. The fluid is heated by a power heating placed below a fan which creates the fluid flow. To study the dynamic behavior of the outlet fluid temperature, this system is described by a differential equation with partial derivatives whose parameters are identified. The modelling of this system by a reduced order model with a pure delay is provided. Model's parameters are determined by the least square method and by genetic algorithms. It is shown that the second order model with a delay yields the best performances.
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