Numerical Modeling of Interaction of Turbulent Flow with a Buried Circular Cylinder on a Plane Surface

M. Sami AKOZ; Oğuz ŞİMŞEK; N. Göksu SOYDAN

doi:https://doi.org/10.18400/tekderg.432310

Makale detayları

Numerical Modeling of Interaction of Turbulent Flow with a Buried Circular Cylinder on a Plane Surface

Yazarlar:

M. Sami AKOZ | Oğuz ŞİMŞEK | N. Göksu SOYDAN

Yayıncı:

TMMOB İnşaat Mühendisleri Odası

Ana Başlıklar:

İnşaat mühendisliği

Dergi:

Teknik Dergi 2019 Vol.30 Issue 6, pp.9621-9645

Belge Tipi:

Makale

Yayın Tarihi:

10/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000648667

Sıklık:

İki Aylık

pISSN:

1300-3453

DOI:

https://doi.org/10.18400/tekderg.432310

Özet:

 


Turbulent flow
characteristics around a partially buried horizontal circular cylinder are
investigated numerically for the burial ratio of B/D=0.50. The governing equations are numerically solved using ANSYS-Fluent
for the flows having the same conditions with the experiments related to measurements
of velocity field by Particle Image Velocimetry for Reynolds numbers based on
the cylinder diameter, in the ranges of 1000 ≤ ReD ≤ 7000. Standard k-ε, Renormalization-group k-ε,
Realizable k-ε, Modified k-ω, Shear Stress Transport k-w and Reynolds Stress
turbulence models are employed. Experimental validations of the numerical
results show that Shear Stress Transport k-w model provides
better predictions for the kinematic properties of the turbulent flow than the
other turbulence models used herein. Force coefficients also predicted
numerically at Reynolds numbers in the ranges of 1000 £ReD £7000 for the burial
ratio, B/D=0, 0.25 and 0.5. 


.

 


Turbulent flow
characteristics around a partially buried horizontal circular cylinder are
investigated numerically for the burial ratio of B/D=0.50. The governing equations are numerically solved using ANSYS-Fluent
for the flows having the same conditions with the experiments related to measurements
of velocity field by Particle Image Velocimetry for Reynolds numbers based on
the cylinder diameter, in the ranges of 1000 ≤ ReD ≤ 7000. Standard k-ε, Renormalization-group
k-ε,
Realizable k-ε, Modified k-ω, Shear Stress Transport k-w and Reynolds Stress
turbulence models are employed. Experimental validations of the numerical
results show that Shear Stress Transport k-w model provides better predictions for the kinematic
properties of the turbulent flow than the other turbulence models used herein.
Force coefficients also predicted numerically at Reynolds numbers in the ranges
of 1000 £ReD £7000 for the burial
ratio, B/D=0, 0.25 and 0.5. 


.

Makale detayları

Numerical Modeling of Interaction of Turbulent Flow with a Buried Circular Cylinder on a Plane Surface

Yazarlar: M. Sami AKOZ | Oğuz ŞİMŞEK | N. Göksu SOYDAN

Yayıncı: TMMOB İnşaat Mühendisleri Odası

Ana Başlıklar: İnşaat mühendisliği

Dergi: Teknik Dergi 2019 Vol.30 Issue 6, pp.9621-9645

Belge Tipi: Makale

Yayın Tarihi: 10/2019

Belge Dili: İngilizce

Document ID (Org No.): 2000648667

Sıklık: İki Aylık

pISSN: 1300-3453

DOI: https://doi.org/10.18400/tekderg.432310

Sayı

Yazarlar:

M. Sami AKOZ | Oğuz ŞİMŞEK | N. Göksu SOYDAN

Yayıncı:

TMMOB İnşaat Mühendisleri Odası

Ana Başlıklar:

İnşaat mühendisliği

Dergi:

Teknik Dergi 2019 Vol.30 Issue 6, pp.9621-9645

Belge Tipi:

Makale

Yayın Tarihi:

10/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000648667

Sıklık:

İki Aylık

pISSN:

1300-3453

DOI:

https://doi.org/10.18400/tekderg.432310