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我只是论文的搬运工 2019.5.19 人工海草设计对海藻场水动力性能评估3

已有 673 次阅读 2019-5-19 11:08 |个人分类:运粮工|系统分类:生活其它

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The main finding of this master thesis, was that in contrary to the findings of Vettori (2016), flat blades do not seem to be a good representation of the undulate kelp L. saccharina. Agreeing with the findings of Paul and Henry (2014), it is likely that the models behave differently from the real seaweed due to different material density and therefore buoyancy.The reason for this conclusion can be seen from the video footage, showing that the models were behaving more similarly to a"bending"plant rather than a"tensile"plant at lower velocities.The Vogel exponent also had distinctly different behavior for the lower compared to higher velocities. These two regions of velocity could be found by looking at the angle between the flow and model. As L. saccharina has been shown to have near neutral buoyancy in water(Vettori, 2016), it is likely to behave as a ’tensile’ plant even at lower velocities, unlike the models tested.


这篇硕士论文的主要发现是,与2016年Vettori的研究结果相反,扁平叶片似乎并不是一个具有起伏海草(L.saccharina)的很好代表。我们的结果与保罗和亨利(2014)的发现一致,模型的行为与真实的行为不同,很可能是由于不同的材料密度和由此引起的浮力不同导致的。这个结论的原因可以从视频中看出,显示模型的行为更接近于“弯曲”植物,而不是低速下的的“拉伸”植物。威格尔指数与高威格尔指数在行为上也有明显的差异。通过观察流和模型之间的角度,可以找到这两个速度区域。正如L.saccharina已被证明在水中接近中性浮力(Vettori,2016年),它很可能在低速的地方表现为一种“拉伸”植物,并不像测试过的模型。


参考文献:Design of Artificial Seaweeds for Assessment of Hydrodynamic Properties of Seaweed Farms




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