Morison's Coefficient CD, CM and Fluid Force on a Circular Cylinder with Separation in Water Waves

1996 ◽  
Vol 12 ◽  
pp. 25-30
Author(s):  
Yukio Sato ◽  
Shinya Okumura ◽  
Ken-ichiro Hamanaka
Keyword(s):  
Circular Cylinder ◽  
Water Waves ◽  
Fluid Force

Hydrodynamic Interactions of the Truncated Porous Vertical Circular Cylinder With Water Waves

2018 ◽  
Author(s):  
Charaf Ouled Housseine ◽  
Sime Malenica ◽  
Guillaume De Hauteclocque ◽  
Xiao-Bo Chen
Keyword(s):  
Circular Cylinder ◽  
Porous Body ◽  
Wave Diffraction ◽  
Water Waves ◽  
Expansion Method ◽  
Integral Equation Method ◽  
Boundary Integral ◽  
Diffraction Radiation ◽  
Linear Potential ◽  
Eigenfunction Expansion Method

Wave diffraction-radiation by a porous body is investigated here. Linear potential flow theory is used and the associated Boundary Value Problem (BVP) is formulated in frequency domain within a linear porosity condition. First, a semi-analytical solution for a truncated porous circular cylinder is developed using the dedicated eigenfunction expansion method. Then the general case of wave diffraction-radiation by a porous body with an arbitrary shape is discussed and solved through Boundary Integral Equation Method (BIEM). The main goal of these developments is to adapt the existing diffraction-radiation code (HYDROSTAR) for that type of applications. Thus the present study of the porous cylinder consists a validation work of (BIEM) numerical implementation. Excellent agreement between analytical and numerical results is observed. Porosity influence on wave exciting forces, added mass and damping is also investigated.

304 Fluid Force Measurement on a Circular Cylinder by PIV Measurement

2011 ◽  
Vol 2011.48 (0) ◽  
pp. 79-80
Author(s):  
Masayoshi OKAMIYA ◽  
Takayuki YAMAGATA ◽  
Toshifumi MA「SUI ◽  
Nobuyuki FUJISAWA
Keyword(s):  
Circular Cylinder ◽  
Force Measurement ◽  
Fluid Force ◽  
Piv Measurement

1113 Fluid Force Acting on Two-Dimensional Circular Cylinder in Lock-in Phenomenon

2001 ◽  
Vol 2001.38 (0) ◽  
pp. 357-358
Author(s):  
Shiki OKAMOTO ◽  
Yoshihiko TAGUWA ◽  
Ryosuke UEMATSU
Keyword(s):  
Circular Cylinder ◽  
Two Dimensional ◽  
Fluid Force ◽  
Lock In

Scattering of surface waves obliquely incident on a fixed half immersed circular cylinder

1984 ◽  
Vol 96 (2) ◽  
pp. 359-369 ◽  
Author(s):  
B. N. Mandal ◽  
S. K. Goswami
Keyword(s):  
Integral Equation ◽  
Surface Water ◽  
Circular Cylinder ◽  
Water Waves ◽  
Wave Number ◽  
Angle Of Incidence ◽  
Reflection And Transmission ◽  
Transmission Coefficients ◽  
Obliquely Incident ◽  
Surface Water Waves

AbstractThe problem of scattering of surface water waves obliquely incident on a fixed half immersed circular cylinder is solved approximately by reducing it to the solution of an integral equation and also by the method of multipoles. For different values of the angle of incidence and the wave number the reflection and transmission coefficients obtained by both methods are evaluated numerically and represented graphically to compare the results obtained by the respective methods.

Sign in / Sign up

Export Citation Format

Share Document