| 开放性尘源粉尘运动轨迹的数值计算 |
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| 引用本文： | 丛晓春,张旭.开放性尘源粉尘运动轨迹的数值计算[J].同济大学学报(自然科学版),2005,33(3):330-333. |
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| 作者姓名： | 丛晓春 张旭 |
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| 作者单位： | 同济大学,暖通空调与燃气研究所,上海,200092 |
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| 摘 要： | 在对粉尘颗粒在大气中受力状况进行分析的基础上 ,采用颗粒随机轨道模型对尘源表面的粉尘在大气中的运动轨迹进行了数值计算 ,再现了野外现场观测的现象 ,从而证明了数值计算的可靠性 .利用ParticleSourceinCell算法 ,计算了由开放性粉尘造成的大气含尘质量分数 ,为定量预测露天矿粉堆料对环境造成的污染提供了依据 .
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| 关 键 词： | 开放性尘源 颗粒受力分析 运动轨迹 含尘质量分数 |
| 文章编号： | 0253-374X(2005)03-0330-04 |
Numerical Calculation of Open-Air Source Powder Velocity Trail |
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| CONG Xiao-chun,ZHANG Xu.Numerical Calculation of Open-Air Source Powder Velocity Trail[J].Journal of Tongji University(Natural Science),2005,33(3):330-333. |
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| Authors: | CONG Xiao-chun ZHANG Xu |
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| Abstract: | Numerical calculation is made in this paper by the method of particle random trail model based on the analyses of various forces operating on the particles during their movement process in the air in order to better track and predict the heavier air pollution caused by the open-air powder source.The result is pretty good and reappears the observational outcomes in the literatures,which can effectively prove the creditability of the calculation results.Then,the arithmetic of particles source in cell methods adopted and powder concentration distribution are obtained.The work offers quantitative reference to predict air pollution caused by the open air powder source. |
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| Keywords: | open -air source force operating on the particle velocity trail mass fraction of powder |
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