VELOCITY CHARACTERISTICS IN WAKE OF A NON-SPHERE BODY AND IN PORE OF POROUS MEDIA COMPOSED OF NON-SPHERES

Yuji Yamamura; Takaaki Shigematsu; Sota Nakajo

doi:10.9753/icce.v36v.waves.58

No. 36v (2020), Waves

No. 36v (2020)

VELOCITY CHARACTERISTICS IN WAKE OF A NON-SPHERE BODY AND IN PORE OF POROUS MEDIA COMPOSED OF NON-SPHERES

Waves

https://doi.org/10.9753/icce.v36v.waves.58

Published 2020-12-28

Yuji Yamamura
Takaaki Shigematsu
Sota Nakajo

Yuji Yamamura

Takaaki Shigematsu

Sota Nakajo

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How to Cite

Yamamura, Y., Shigematsu, T., & Nakajo, S. (2020). VELOCITY CHARACTERISTICS IN WAKE OF A NON-SPHERE BODY AND IN PORE OF POROUS MEDIA COMPOSED OF NON-SPHERES. Coastal Engineering Proceedings, (36v), waves.58. https://doi.org/10.9753/icce.v36v.waves.58

Abstract

Details of a velocity field around a prolate spheroid in a steady flow with different angles of attack were investigated by carrying out a hydraulic experiment using the PTV technique. It was found that characteristics of the vortex in the wake of the prolate spheroid were different depending on the angle of attack. It was clearly found that the velocity field changes significantly in the wake. That is to say that there were some areas with strong and weak turbulence and that also some areas with a certain periodic and unclear periodic velocity change with significant change. It was clear that these characteristics depend on the angle of attack of the spheroid. Further, it was confirmed that the distribution of the turbulence intensity was different between the horizontal and vertical components.

Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/34Dw1CSLEz4

https://doi.org/10.9753/icce.v36v.waves.58

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References

Nakajo, Shigematsu, Tsujimoto, Takehara (2008) : An experimental study on turbulence induced by porous media, Proc. 31st international Conference on Coastal Engineering, pp. 4738-4750.

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VELOCITY CHARACTERISTICS IN WAKE OF A NON-SPHERE BODY AND IN PORE OF POROUS MEDIA COMPOSED OF NON-SPHERES

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