Wind Loads on Hemispherical Composite Extruded Structures

卡尔加里公司Advanced Technology Structures生产一系列预制建筑，用于许多 ** 应用，包括农业和其他存储，办公室住宿，紧急避难所和住房。这些建筑物的一个共同特点是它们的半球形圆柱体形状，可以进行修改，以满足特定的应用。作为 ** 设计过程的一部分，该公司需要了解这些结构上的风载荷，但几何形状尚未经过详细的风洞测试，而且这些测试对于一家小公司来说 ** 昂贵得令人望而却步。作为替代方案，本项目将使用著名的开源计算流体动力学软件OpenFOAM来模拟风荷载。我们已经确定了在相关几何形状上进行的少数风洞试验。该项目将开始模拟这些测试，** 确定导致极端风荷载的情况，并评估各种湍流模型在 ** 预测它们时的准确性。项目结果将是准确但保守的风荷载估计，来自软件 **，可以轻松检查对建筑几何形状的任何拟议更改。

The Calgary company Advanced Technology Structures produces a range of prefabricated buildings for many**applications including agricultural and other storage, office accommodation, emergency shelter, and housing.**A common feature of these buildings is their hemispherical cylinder shape which may be modified to satisfy a**particular application. The company needs to understand the wind loads on these structures as part of the**design process, but the geometry has not been wind tunnel tested in detail, and these tests are prohibitively**expensive for a small company to undertake. As an alternative, this project will use the well-known open**source computational fluid dynamics software OpenFOAM to simulate the wind loads. We have identified the**few wind tunnel tests carried out on relevant geometries. This project will begin by simulating these tests,**identifying the cases that cause extreme wind loads and assess the accuracy of various turbulence models in**predicting them. The project outcomes will be accurate but conservative wind load estimations from software**that can easily check any proposed changes to the building geometry.