桥位地形风场数值模拟方法
发布时间：2018-11-14 18:41
【摘要】：采用计算流体动力学方法结合地形数字模型建立了桥位地形风特性数值模拟方法,针对单峰山丘分别采用RNGk-ε和SSTk-ω两种湍流模型进行数值模拟,然后以某拟建大桥为背景采用RNGk-ε湍流模型进行桥位地形风场数值模拟。研究表明,采用RNGk-ε和SSTk-ω模型进行单峰山丘风场计算结果较为接近;实际地形桥位风场特性计算结果与现场实测值相近,计算精度满足工程需要。
[Abstract]:A numerical simulation method for topographic wind characteristics of bridge is established by means of computational fluid dynamics (CFD) and topographic digital model. The RNGk- 蔚 and SSTk- 蠅 turbulence models are used to simulate the single peak hill respectively. Then the RNGk- 蔚 turbulence model is used to simulate the topographic wind field of a proposed bridge. The results show that the RNGk- 蔚 and SSTk- 蠅 models are used to calculate the wind field of a single peak hill, and the calculated results of wind field characteristics of the actual topographic bridge are close to those of the field measurements, and the accuracy of the calculation meets the needs of engineering.
【作者单位】： 湖南大学风工程与桥梁工程湖南省重点实验室;甘肃省交通规划勘察设计院有限责任公司;
【基金】：国家自然科学基金资助项目,项目编号51478180
【分类号】：U442.5;O35
，
本文编号：2331982
[Abstract]:A numerical simulation method for topographic wind characteristics of bridge is established by means of computational fluid dynamics (CFD) and topographic digital model. The RNGk- 蔚 and SSTk- 蠅 turbulence models are used to simulate the single peak hill respectively. Then the RNGk- 蔚 turbulence model is used to simulate the topographic wind field of a proposed bridge. The results show that the RNGk- 蔚 and SSTk- 蠅 models are used to calculate the wind field of a single peak hill, and the calculated results of wind field characteristics of the actual topographic bridge are close to those of the field measurements, and the accuracy of the calculation meets the needs of engineering.
【作者单位】： 湖南大学风工程与桥梁工程湖南省重点实验室;甘肃省交通规划勘察设计院有限责任公司;
【基金】：国家自然科学基金资助项目,项目编号51478180
【分类号】：U442.5;O35
，
本文编号：2331982
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