Abstract Free-standing hybrid risers are vertical slender steel pipes that commonly used in the oil and gas industry. These structures subjected to complex hydrodynamic loads results fatigue damage. The tidal forces develop on Freestanding Risers (FSR) with buoyancy cans ( BC ) because of varying outer pipe dimensions investigated this work. study considered riser diameters 0.2, 0.3, 0.5 0.6 me...

Temperature is an important environmental factor affecting streamer discharge. However, the mechanism and regularity of influence are still unclear. This paper analyzes how parameters in hydrodynamic model affected by temperature finite element method used to solve three particle continuity equations along with Poisson’s equation simultaneously. The results show that increase inhibits ionizatio...

Abstract The research on surface texture is developing from single macro-texture to composite micro-nano texture. current the anti-friction mechanism and theoretical models of textures relatively weak. Studying characteristics different types determining applicable working conditions each focus research. In this paper, a mathematical model hydrodynamic lubrication established based Navier–Stoke...