Modeling Non-premixed, Turbulent Combustion

非预混湍流燃烧建模

• 批准号: 9810103
• 负责人: James Riley
• 金额: $ 35.07万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-10-01 至 2002-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9810103&HistoricalAwards=false
• 关键词: Modeling; Non; premixed; Turbulent; Combustion

Abstract - Riley This is a modeling study on turbulent, non-premixed, reacting flows focussing on issues related to the modeling of hydrogen and hydrocarbon diffusion flames burning in air. Issues investigated include the applicability of large-eddy simulations (LES) to turbulent, combusting flows and the influence of differential diffusion of atomic and diatomic hydrogen under turbulent conditions. The validity of large-eddy versions of the flamelet model is studied; comparisons of predictions from LES are made both with laboratory data and with the results of high-resolution, direct numerical simulations. Validity of the modeling of differential diffusion is judged in the context of the Reynolds-averaged (or Favre-averaged) equations and also in the context of the large-eddy simulations.

摘要-莱利 这是一个模拟研究湍流，非预混，反应流集中在有关的问题建模的氢气和碳氢化合物的扩散火焰在空气中燃烧。 调查的问题包括大涡模拟（LES）湍流，燃烧流和湍流条件下的原子和双原子氢的差分扩散的影响的适用性。 的火焰模型的大涡版本的有效性进行了研究，从LES的预测与实验室数据和高分辨率，直接数值模拟的结果进行比较。 差分扩散的建模的有效性判断的上下文中的的Elderolds平均（或Favre平均）方程，也在大涡模拟的上下文中。