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基于JPDF方法的噴霧湍流燃燒數(shù)值模擬
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Probability Density Function Modeling of Spray and Turbulent Reactive Flow
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    將速度-標(biāo)量-頻率聯(lián)合概率密度函數(shù)JPDF輸運(yùn)方程方法應(yīng)用于兩相噴霧湍流反應(yīng)流問(wèn)題,，利用火焰面模型解耦流動(dòng)和化學(xué)反應(yīng)動(dòng)力學(xué)的耦合關(guān)系，建立相應(yīng)的數(shù)值計(jì)算模型,。采用Monte-Carlo數(shù)值計(jì)算方法,，針對(duì)文獻(xiàn)中以甲醇為燃料所進(jìn)行的湍流噴霧燃燒值班火焰這一試驗(yàn)進(jìn)行了數(shù)值模擬,，通過(guò)與Fluent下的計(jì)算結(jié)果及試驗(yàn)結(jié)果的對(duì)比分析,，驗(yàn)證了所建模型的準(zhǔn)確性,。

    Abstract:

    In the spray turbulent combustion, droplets, turbulent and chemical reaction are strongly coupled and the physical and chemical mechanisms are very complex. Velocity-scalar-frequency joint probability density function (JPDF) transport equation method was introduced into the two-phase turbulent reactive flow coupled with flamelet method for solving the relation between flow field and chemical dynamics. Based on this model and the Monte-Carlo numerical solving method, the numerical simulation was performed for the turbulent spray combustion in a piloted jet flame burner developed by Masri. The comparison between the experiment and the numerical simulation results verified the spray JPDF model.

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何志霞,王謙,Andriy Rybakov, Ulrich Maas.基于JPDF方法的噴霧湍流燃燒數(shù)值模擬[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2010,41(7):6-10. Probability Density Function Modeling of Spray and Turbulent Reactive Flow[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(7):6-10.

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