• 应用研究 •

成品油管道顺序输送二维模型优化求解

1. 1. 后勤工程学院军事供油工程系, 重庆 401331;
2. 国家救灾应急装备工程技术研究中心, 重庆 401331
• 收稿日期:2014-01-10 修回日期:2014-02-20 出版日期:2014-10-15 发布日期:2014-02-25
• 通讯作者: 郑劼恒，硕士研究生，研究方向为顺序输送数值模拟.E-mail：327005868@qq.com
• 基金资助:

后勤工程学院学术创新基金资助项目（YZ08-43601）.

THE OPTIMAL SOLUTION FOR THE TWO-DIMENSIONAL CONVECTION-DIFFUSION MODEL IN BATCHING PRODUCT PIPELINE

ZHENG Jieheng1, JIANG Ming1,2

1. 1. Dept. of Petroleum Supply Engineering, Logistical Engineering University, Chongqing 401331, China;
2. National Engineering Research Center for Disaster and Emergency Rescue Equipment, Chongqing 401331, China
• Received:2014-01-10 Revised:2014-02-20 Online:2014-10-15 Published:2014-02-25

Abstract:

A simplified adaptive mesh method is applied to solve the two-dimensional convection -diffusion model of batching. In this method, the density of the mesh is controlled by the velocity and the concentration gradient, and the traditional fixed grid is replaced by the dynamic mesh. In the two-dimension model, the velocity field and the turbulent diffusion rate is derived based on the mixed length theory，with the consideration of the influence on the mixing oil by its viscosity variation. The goal is to improve the computation precision and reduce the calculation amount to make it suitable for batching simulations in long distance pipelines. The effectiveness of this method is verified by the comparative analysis of the numerical experiment. The numerical analysis shows how the Reynolds number, the product sequence and the transportation distance influence the results.

Key words:

batch transportation|adaptive mesh|model of batching contamination|numerical calculation