Computational modeling of wind flow and its effect on a cubical building using Large Eddy Simulation (LES) technique

Venugopal M.M.; S.K. Maharana

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Computational modeling of wind flow and its effect on a cubical building using Large Eddy Simulation (LES) technique

机译：大涡模拟（LES）技术对风流的计算建模及其对立方建筑物的影响

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The wind flow and its effects over cubical buildings lying in close vicinity in urban areas generates flow interference effects causing problems related to pollution, pedestrian comfort and ventilation within the buildings thus promoting a lot of research interest in this area during the last few years. The wake and its characteristics of a building has drawn attention for various applications like dispersion of pollutants downwind of conventional or nuclear power plants, airport runway interference effect, take-off/landing limitation at heliports, pedestrian wind comfort, and wind loads on structures.Computational Fluid dynamics (CFD) is one of the promising technologies for investigating these important issues, which will not necessarily be solved by traditional wind tunnel technology. Large Eddy Simulation Technique (LES) shall be used to predict the flow physics- external flow around the building. The proposed work has been accomplished through numerical simulation using ANSYS-FLUENT 12.1 solver.The effects have been quantified in terms of the pressure distribution, turbulence in and around the building, three-dimensionality effect on the overall flow patterns.

机译：气流及其在城市附近的立方建筑物上产生的影响会产生气流干扰效应，从而引起与建筑物内的污染，行人舒适性和通风有关的问题，因此在过去几年中引起了该领域的许多研究兴趣。建筑物的尾流及其特性已吸引了各种应用的注意，例如常规或核电厂顺风方向的污染物扩散，机场跑道干扰效应，直升机场的起飞/着陆限制，行人风舒适性以及结构上的风荷载。计算流体力学（CFD）是研究这些重要问题的有前途的技术之一，传统的风洞技术并不一定能解决这些问题。应使用大型涡流模拟技术（LES）来预测建筑物周围的流体物理流动。通过使用ANSYS-FLUENT 12.1解算器进行数值模拟，完成了拟议的工作。已根据压力分布，建筑物内部和周围的湍流以及对整体流型的三维影响对影响进行了量化。

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《International Journal of Engineering Research and Applications》 |2018年第7期|共页
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Venugopal M.M.; S.K. Maharana;
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3. Inflow turbulence generation techniques for large eddy simulation of flow and dispersion around a model building in a turbulent atmospheric boundary layer [J] . Bazdidi-Tehrani Farzad, Kiamansouri Mohsen, Jadidi Mohammad Journal of building performance simulation . 2016,第5a6期

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5. New subgrid models for inertial particles in large-eddy simulations of turbulent flows. [D] . Ray, Baidurja. 2013

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6. New inflow boundary conditions for modeling twisted wind profiles in CFD simulation for evaluating the pedestrian-level wind field near an isolated building [O] . A.U. Weerasuriya, Z.Z. Hu, X.L. Zhang, -1

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机译：计算风工程的高效大涡模拟算法：211在单体建筑物表面压力计算中的应用

Computational modeling of wind flow and its effect on a cubical building using Large Eddy Simulation (LES) technique

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