Affiliation:
1. Maurice J. Zucrow Laboratories, School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-2014
Abstract
A two fluid Eulerian-liquid Eulerian-gas (ELEG) model for diesel sprays is developed. It is employed to carry out computations for diesel sprays under a wide range of ambient and injection conditions. Computed and measured results are compared to assess the accuracy of the model in the far field, i.e., at axial distances greater than 300 orifice diameters, and in the near field, i.e., at axial distances less than 100 orifice diameters. In the far field, the comparisons are of drop mean velocities and drop fluctuation velocities and in the near field they are of entrainment velocities and entrainment constants. Adequate agreement is obtained quantitatively, within 30 percent, and qualitatively as parameters are changed. Unlike in traditional Lagrangian-drop Eulerian-fluid (LDEF) approaches that are employed for diesel spray computations, adequate resolution can be employed in the near field to achieve numerical grid independence when the two-fluid model is employed. A major source of uncertainty in the near field is in the modeling of liquid jet breakup and atomization.
Reference33 articles.
1. Dukowicz, J. K.
, 1980, “A Particle-Fluid-Numerical Model for Liquid Sprays,” J. Comput. Phys., 35(2), pp. 229–253.
2. O’Rourke, P. J., and Bracco, F. V., 1980, “Modeling of Drop Interactions in Thick Sprays and Comparison with Experiments,” The Institution of Mechanical Engineers, Publication 1980-9, pp. 101–116.
3. Abraham, J., 1997, “What is Adequate Resolution in the Numerical Computations of Transient Jets?” Transactions of the SAE, 106(3), pp. 141–155.
4. Iyer, V. A., and Abraham, J., 1997, “Penetration and Dispersion of Transient Gas Jets and Sprays,” Combust. Sci. Technol., 130, pp. 315–335.
5. Aneja, R., and Abraham, J., 1998, “How Far Does the Liquid Penetrate in a Diesel Engine: Computed Results vs. Measurements?” Combust. Sci. Technol., 138, pp. 233–255.
Cited by
23 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献