... increases at the same reduced velocity V r . The response frequency in the inline direction is double of that in the crossflow direction. The oscillating lift force dominates the crossflow oscillatory motion. Eight-shaped trajectories are observed the maximum displacements in the crossflow direction...

... piping simulation piping design asia government offshore pipeline modal frequency upstream oil & gas europe government spool midstream oil & gas stiffness lift force slug force time history hybrid method slug flow force time history lift coefficient fiv analysis spool...

... the stability of pipe in engineering practice. The aim of this study is to understand the importance of ballast for the stability of pipe system. FLOW-3D software was applied to simulate the effect of submarine pipes with ballasts under wave motion generated drag force, lift force and inertial force...

... rotation; its characteristics differ from those of vortex excitation in a fixed pipe (Inoue et al., 2013). Furthermore, the drill pipe rotation in tidal current generates a lift force called the Magnus effect, which deforms the pipe. These dynamics may have contributed to the damage and rupture of drill...

... performance of an underwater glider is studied by computational fluid dynamics (CFD) methodology. The results show that the wing deformation will reduce the lift force, drag force and pitch moment of the underwater glider. The larger the Young's modulus of the wing, the smaller the influence of the wing...

... dawson wave resistance theoretical result model iii coefficient slender body geometry submarine free surface spheroid trim angle kozin formula ice cover submergence depth lift force magnitude length-to-diameter ratio ABSTRACT The article touches upon an unsteady...

... cylinder drag force artificial intelligence reservoir characterization beam length displacement dynamic response non-dimensional beam length amplitude flexible filament trajectory elastic beam production control vortex interaction deformation different length mechanics lift force vortice...

... its safety reliability and fatigue lifetime. In this study, the lift force and drag force on a tunnel section model was studied through a stationary towing test of a twin-rigid-cylinder in tandem arrangement with various spacing ratios. The torsional moment induced by the difference of lift force...

... damping, the upper branch as the third response branch was found, in which the vortex shedding is the 2P mode (Khalak and Williamson, 1996, 1997, 1999; Travin et al., 2000). Furthermore, Khalak and Williamson (1999) found a 180° jump in phase angle between motion and lift force when the transition from...

... and the distance between them depend on body length and central cross-section area. The solution is carried out using known integral and asymptotic methods. The effects of an ice sheet thickness, its lateral stress, water depth, submergence depth on wave resistance and lift force of slender body is analyzed...

... ABSTRACT Rudders located in the stream accelerated by the propeller are prone to ventilation, which can undermine the turning ability of the vessel due to the loss of the rudder lift force. Such multiphase flow is a complex phenomenon, which is hard to numerically predict and control. The aim...

... equation oscillation cylinder engineering steady flow unidirectional flow amplitude hayashi frequency vortex-excited vibration maximum value circular cylinder test cylinder dfy lift force blevin variation case sc0 sc9 power generation vibration Power Generation Using Non...

... components in the Morison s equation will become very small in the segments of the riser that are close to a horizontal position. This is due to the projected area of the pipe being diminished. In addition to the Morison s force, the lift force was also considered in the analysis for the SLWR configuration...

... experiment experimental investigation marine transportation regular wave rudder load cell ship wavelength ship hull load cell lift force wave force kc model upstream oil & gas drag force Experimental Investigation of the Hydrodynamic Force Acting on Ship Hull and Rudder in Various Wave...

... to be elastic. Aircraft is represented by pressure distribution under landing gears with lift force taken into account. An analytic solution of the problem is found by means of integral transformations. The influence of ice thickness, aircraft weight and speed on the possibility of ice plate destruction...

... Abstract This paper presents theoretical investigations on the performances of several kinds of fishtail rudder sections and hydrodynamic mechanism for generating higher lift forces due to the fish tails. The hydrodynamic forces acting on the sections and the flows passing them are calculated...

... Abstract An investigation of lift forces acting on gravity base foundations is presented, utilizing the CFD based Virtual Free Surface (VFS) reduced modeling technique. The paper raises awareness of the significant vertical loads that may ensue when currents and waves are subjected to a bluff...

... in preventing pipeline deformation in liquefied seabed. burial depth pipe vibration pipeline vibration frequency model pipeline vortex-induced vibration coefficient series ii pipeline span experiment upstream oil & gas lift force pipeline amplitude liquefaction vibration acceleration...

... not be aligned in order to reduce the effect of wake flow. At flow velocity of 1.8 m/s, maximum lift force and drag force on the rudder are -13.0 kN and 8.05 kN, respectively. Maximum displacements locate on both end of rudder with a value of 0.673 mm. Deformation ratio of the rudder is 1/3165. Numerical...

... test mode vim coefficient fshr system lift force buoyancy vim lift coefficient lower buoyancy VIM of Dual Buoyancy Can FSHR System Kevin Huang, Derek Du, Ruxin Song and Xiaoliang Zhou Technip Houston, Texas, USA ABSTRACT Free standing hybrid riser (FSHR) system has been used for deepwater...