EXPERIMENTAL INVESTIGATION OF FLOW STRUCTURE DOWNSTREAM OF PERMEABLE CYLINDERS

Bengi ŞANLI; Hüseyin Akıllı

doi:https://doi.org/10.31127/tuje.349532

Makale detayları

EXPERIMENTAL INVESTIGATION OF FLOW STRUCTURE DOWNSTREAM OF PERMEABLE CYLINDERS

Yazarlar:

Bengi ŞANLI | Hüseyin Akıllı

Yayıncı:

Murat YAKAR

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Engineering 2018 Vol.2 Issue 2, pp.54-59

Belge Tipi:

Makale

Yayın Tarihi:

5/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000634692

Sıklık:

Üç Aylık

eISSN:

2587-1366

DOI:

https://doi.org/10.31127/tuje.349532

Özet:

 


Flow
structure downstream of permeable cylinders was investigated using high-image
density Particle Image Velocimetry technique in deep water. The free stream
velocity is U∞= 156 mm/s, which corresponds to the Reynolds number
of Re=6250 based on the cylinder diameter D=37.5 mm. To reveal the effect of
the porosity, four different porosities (β= 0.4, 0.5, 0.6 and 0.7) were used.
This study showed that the usage of permeable cylinder decreases the occurrence
of large-scale vortical structures downstream of the bluff body. As the
porosity increases, turbulent kinetic energy, Reynolds shear stress and
intensity of turbulences decrease as a sign of attenuated fluctuations in the
wake region. For the permeable cylinders having the porosity higher than 0.6,
the flow behaves as there is no object in flow. 


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Makale detayları

EXPERIMENTAL INVESTIGATION OF FLOW STRUCTURE DOWNSTREAM OF PERMEABLE CYLINDERS

Yazarlar: Bengi ŞANLI | Hüseyin Akıllı

Yayıncı: Murat YAKAR

Ana Başlıklar: Uygulamalı fizik

Dergi: Turkish Journal of Engineering 2018 Vol.2 Issue 2, pp.54-59

Belge Tipi: Makale

Yayın Tarihi: 5/2018

Belge Dili: İngilizce

Document ID (Org No.): 2000634692

Sıklık: Üç Aylık

eISSN: 2587-1366

DOI: https://doi.org/10.31127/tuje.349532

Sayı

Yazarlar:

Bengi ŞANLI | Hüseyin Akıllı

Yayıncı:

Murat YAKAR

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Engineering 2018 Vol.2 Issue 2, pp.54-59

Belge Tipi:

Makale

Yayın Tarihi:

5/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000634692

Sıklık:

Üç Aylık

eISSN:

2587-1366

DOI:

https://doi.org/10.31127/tuje.349532