不同纵荡幅值下浮式水平轴叶轮的水动力性能分析

张成林; 刘安东; 王世明; 谢双义

doi:10.19912/j.0254-0096.tynxb.2021-0741

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太阳能学报 ›› 2022, Vol. 43 ›› Issue (12) : 482-488. DOI: 10.19912/j.0254-0096.tynxb.2021-0741

不同纵荡幅值下浮式水平轴叶轮的水动力性能分析

张成林^1,2, 刘安东², 王世明¹, 谢双义³

作者信息 +

ANALYSIS ON HYDRODYNAMIC PERFORMANCE OF FLOATING HORIZONTAL-AXIS IMPELLER UNDER DIFFERENT SURGE AMPLITUDES

Zhang Chenglin^1,2, Liu Andong², Wang Shiming¹, Xie Shuangyi³

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文章历史 +

摘要

为研究浪流联合环境对于浮式潮流能水轮机性能的影响,对均匀来流环境下施加波浪激励下的水平轴获能叶轮进行水动力分析。结合ANSYS-Fluent流体仿真软件并对其进行二次开发,采用重叠网格法建立均匀来流时浮式获能叶轮受迫运动的水动力分析模型,模拟S型双向潮流能叶轮在不同幅值的纵荡运动时的水动力性能,并结合实际水槽试验对计算结果的准确性进行验证。分析结果显示：纵荡激励使获能叶轮周边的流场速度产生明显的瞬时波动,且获能叶轮受力载荷的波动幅值会因纵荡激励作用的增强而升高;叶轮尾流场的流速变化和流线的变化伴随纵荡幅值的增大而增大,但流场的均匀度伴随纵荡幅值的增大而降低。

Abstract

In order to study the effect of wave-current combined environment on the performance of floating tidal current turbine, the hydrodynamic analysis of horizontal axis energy-capacitated impeller under wave excitation in uniform inflow environment is carried out. Combined with ANSYS-Fluent fluid simulation software and its secondary development, the hydrodynamic analysis model of the forced motion of the floating energy-capturing impeller in uniform inflow is established by using the overlapping grid method. The hydrodynamic performance of the S-type bidirectional tidal current energy impeller in surge motion with different amplitudes is simulated, and the accuracy of the calculation results is verified by the actual flume test. The analysis results show that the surge excitation causes obvious instantaneous fluctuation of the flow field velocity around the impeller, and the fluctuation amplitude of the force load of the impeller will increase due to the enhancement of the surge excitation. The velocity change and streamline change of the impeller wake field increase with the increase of the surge amplitude, but the uniformity of the flow field decreases with the increase of the surge amplitude.

导出引用

张成林, 刘安东, 王世明, 谢双义. 不同纵荡幅值下浮式水平轴叶轮的水动力性能分析[J]. 太阳能学报. 2022, 43(12): 482-488 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0741

Zhang Chenglin, Liu Andong, Wang Shiming, Xie Shuangyi. ANALYSIS ON HYDRODYNAMIC PERFORMANCE OF FLOATING HORIZONTAL-AXIS IMPELLER UNDER DIFFERENT SURGE AMPLITUDES[J]. Acta Energiae Solaris Sinica. 2022, 43(12): 482-488 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0741

中图分类号： P743.1 P743.2

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