| 基于室内空气稳定性的污染物侧送风数值模拟 |
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| 引用本文： | 龚光彩,徐春雯,罗泓锋,韩冰. 基于室内空气稳定性的污染物侧送风数值模拟[J]. 科技导报(北京), 2011, 29(4): 53-58 |
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| 作者姓名： | 龚光彩 徐春雯 罗泓锋 韩冰 |
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| 作者单位： | 湖南大学土木工程学院,长沙,410082 |
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| 基金项目： | 湖南省国际科技合作计划项目,湖南省科技重大专项,国际科技合作与交流专项 |
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| 摘 要： | 在室内空气稳定性的概念和判断依据基础上,对其进行数学验证,根据环境温度垂直递减率的正负将其分为稳定型、中性稳定型和不稳定型.建立不同温度梯度下的数学、物理模型.并利用计算流体动力学(CFD)软件对NH3等污染物侧送风条件下,在室内传播的特性进行模拟,得出不同稳定性条件下污染物扩散的规律.在对污染物下进上出的通风方式的研...
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| 关 键 词： | CFD模拟:室内空气稳定性 污染物扩散 侧送风 湍流 |
Numerical Simulation of Lateral Contaminant Ventilation Under Different Indoor Air Stabilities |
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| GONG Guangcai,XU Chunwen,LUO Hongfeng,HAN Bing. Numerical Simulation of Lateral Contaminant Ventilation Under Different Indoor Air Stabilities[J]. Science & Technology Review, 2011, 29(4): 53-58 |
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| Authors: | GONG Guangcai XU Chunwen LUO Hongfeng HAN Bing |
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| Affiliation: | GONG Guangcai,XU Chunwen,LUO Hongfeng,HAN Bing College of Civil Engineering,Hunan University,Changsha 410082,China |
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| Abstract: | The concept and clarifications of indoor air stability are validated by a mathematical method. The indoor air stability is classified into three types,that is,stable,neutral,and unstable according to the environmental temperature lapse rate after the mathematical derivation. A physical model is established under different temperature gradients. By use of Computational Fluid Dynamics (CFD) software,the propagation characteristics of NH3 and other indoor pollutants are simulated under the condition of lateral... |
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| Keywords: | CFD simulation indoor air stability contaminant diffusion lateral ventilation turbulence |
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