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首页> 外文期刊>International Journal of Scientific World >Hydrodynamic analysis of flow around square cylinders and determination of the strouhal number as a function of angles of attack and reynolds numbers
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Hydrodynamic analysis of flow around square cylinders and determination of the strouhal number as a function of angles of attack and reynolds numbers

机译：方筒周围流体流动的流体力学分析以及作为冲角和雷诺数的函数的斯特鲁赫数的确定

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Hydrodynamic analysis of flow around square cylinders at different inclined angles of attach ranging from 0 to 45 at low Reynolds numbers, both in water and air, has been carried out using commercial software ANSYS CFX. Twenty different square cylinders were modeled at angles 0, 5, 10, 15, 20, 25, 30, 40 & 45 degrees. Results obtained by the hydrodynamic analyses were analyzed by Eureqa software to find a relation between non dimensional parameters. Strouhal number was determined to be a function of angle of attack and 1/Re in water and air. The obtained formulas were tested at two random angles of 33 and 50 against the results of Ansys-CFX. Comparison displayed good agreement which is demonstrative of the acceptability of the obtained relationships.
机译：已经使用商业软件ANSYS CFX进行了在水和空气中低雷诺数下，从0到45的不同倾斜角度，在方形圆柱体周围流动的流体动力学分析。分别以角度0、5、10、15、20、25、30、40和45度对20个不同的方形圆柱进行建模。通过Eureqa软件分析了流体动力学分析获得的结果，以发现无量纲参数之间的关系。 Strouhal数被确定为迎角和在水和空气中的1 / Re的函数。相对于Ansys-CFX的结果，以33和50的两个随机角度测试了获得的公式。比较显示出良好的一致性，这说明所获得关系的可接受性。

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