Nuevo modelo para las integrales de colisión, y optimización de un modelo existente

Abstract

A new model is presented for the calculation of the collision integral, which is necessary for determining transport properties according to the Chapman-Enskog theory. This model has not been proposed before and it adjusts the theoretical values well above the model of Neufeld et al. (1972), one of the most used. Additionally, the constants of the model of Neufeld et al. were optimized, thus improving the adjustment of the theoretical values and leaving the accuracy of this model close to the proposed optimal model.