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PRC Scientist Supplement: Affordable Computational Model forHomogeneous Turbulent Mixing of Chemically Reactive Species

PRC Scientist Supplement: Affordable Computational Model forHomogeneous Turbulent Mixing of Chemically Reactive Species
中国科学家增刊：化学反应物质均匀湍流混合的经济计算模型
批准号：
8706249
负责人：
Edward O'Brien
金额：
$11.13万
依托单位：
SUNY at Stony Brook
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1987
资助国家：
美国
项目状态：
已结题
起止时间：
1987-09-01 至 1990-08-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=8706249&HistoricalAwards=false
关键词：
PRCScientistSupplementAffordableComputational

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中文摘要
翻译
在两点水平上，我们将开发一种新的、计算成本低廉的模型来研究均匀湍流中的两组分组合化学反应。时间分裂将被用来在短时间间隔内分离对流和扩散效应；闭合近似将在相同的短时间间隔内孤立地应用于每一种现象。对流和扩散闭合近似将通过参考中到低雷诺数下相同问题的直接数值模拟解，单独和集体地与反应一起检查。
英文摘要
A novel, computationally inexpensive model will be developed to study, at the two-point level, the combined two-species chemical reaction in homogeneous turbulence. Time splitting will be used to decouple convective and diffusive effects over short time intervals; closure approximations will then be applied to each of these phenomena in isolation over the same brief intervals. The convective and diffusive closure approximations will be examined individually and collectively, along with reaction, by reference to direct numerical simulation solutions to the same problems at moderate to low Reynolds numbers.
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