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自然通风畜舍之间污染物扩散的数值模拟研究 被引量:2

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摘要 研究利用流体动力学(CFD)模拟方法研究了自然通风情况下两畜舍间及其内部的气流分布和污染物分布;采用湍流标准k-ε模型及组分输运模型,分析不同畜舍间距(1、2、3倍屋脊高H)和不同污染物释放位置(上风向舍内和下风向舍内)对畜舍自然通风空气流动模式和污染物分布的影响。结果表明:下风向舍释放的污染物有可能到达上风向舍,但其量极小,可以合理忽略;自上风向舍释放污染物时,3H间距时下风向舍内污染物浓度与2H间距时相似,是1H间距时的65%,因此选择2倍脊高作为畜舍防疫隔离距离既有效又经济。
出处 《中国畜牧杂志》 CAS 北大核心 2011年第15期67-72,共6页 Chinese Journal of Animal Science
基金 现代农业产业(肉牛)技术体系(nycytx-38)
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