建筑物周边风致雪漂移的数值模拟研究

发布时间：2018-03-14 15:49

  本文选题：风致雪漂移　切入点：跃移　出处：《工程力学》2014年04期 　论文类型：期刊论文

【摘要】：利用计算流体力学软件FLUENT,基于Euler-Euler方法,假定空气相和雪相均为连续相,采用Mixture多相流模型对建筑物周边的风雪漂移进行了数值模拟。采用有限体积法和SIMPLE压力校正算法来实现非线性离散化方程的解耦和迭代求解。以防雪栏为研究对象,通过不同湍流模型模拟其周边雪漂移的情况,结果表明k-kl-ω模型能较好的模拟风雪漂移。在此基础上对立方体周围的风雪漂移进行了数值模拟,数值模拟结果与实测结果积雪分布规律相一致,验证了该文数值模拟方法的有效性。
[Abstract]:Using computational fluid dynamics software fluent, based on Euler-Euler method, the air and snow phases are assumed to be continuous phase. The Mixture multiphase flow model is used to simulate the snow drift around the building. The finite volume method and the SIMPLE pressure correction algorithm are used to decouple and iteratively solve the nonlinear discrete equations. The results show that the k-Kl- 蠅 model can well simulate the snow drift around the cube, and the snow drift around the cube is simulated numerically. The numerical simulation results are consistent with the measured results, and the effectiveness of the numerical simulation method is verified.
【作者单位】： 哈尔滨工业大学土木工程学院;中国航天建设集团有限公司;
【基金】：国家自然科学基金重大研究计划重点项目(91215302);国家自然科学基金面上项目(50908068)
【分类号】：TU312.1
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