...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Engineering Research >Numerical simulation of combustion progress on dual fuel engines with different turbulence models
【24h】

Numerical simulation of combustion progress on dual fuel engines with different turbulence models

机译：不同湍流模型的双燃料发动机燃烧过程的数值模拟

获取原文
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In order to get a more accurate turbulence model, three turbulence models had been adopted to simulate combustion progress on dual fuel (DF) engines. Compared with experimental data, the precision of each model to simulate combustion progress on DF engines was investigated. It is shown that the mean pressure in cylinder computed by each model is different. The peak pressure in cylinder is the largest by using PANS model and has better agreement with experimental data, only 0.93% smaller than the experimental data. NOx emission calculation is more accurate by using k-ε model. Compared with experimental data, the calculation deviation of O 2 and CO 2 emission by using three turbulence models does not exceed 2%. The k-ζ-f model at COemission calculation is better agreement with experimental data when the engine is in a low load. However, when the engine is in the high load, the PANS model at COemission calculation is better agreement with experimental data.
机译：为了获得更精确的湍流模型，采用了三种湍流模型来模拟双燃料（DF）发动机的燃烧过程。与实验数据进行了比较，研究了每种模型在DF发动机上模拟燃烧过程的精度。结果表明，每个模型计算出的气缸平均压力是不同的。利用PANS模型，气缸内的峰值压力最大，与实验数据吻合较好，仅比实验数据小0.93％。使用k-ε模型可以更准确地计算NOx排放量。与实验数据相比，采用三种湍流模型计算出的O 2和CO 2排放的计算偏差不超过2％。当发动机处于低负荷时，CO排放计算中的k-ζ-f模型与实验数据更好地吻合。但是，当发动机处于高负荷状态时，CO排放计算中的PANS模型与实验数据比较吻合。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号