Vortex-induced vibration and galloping of prisms with triangular cross-sections

Free Vibration Analysis of BNNT with Different Cross-Sections via Nonlocal FEM

In the present study, free vibration behaviors of of carbon nanotube (CNT) and boron nitride nanotube (BNNT) have been investigated via Eringen’s nonlocal continuum theory. Size effect has been considered via nonlocal continuum theory. Nanotubes have become popular in the world of science thanks to their characteristic properties. In this study, free vibrations of Boron Nitride Nanotube (BNNT) ...

Investigation of vortex-induced vibration phenomenon in verticallong circular slender structure with non-uniform flows

Analyzing the vortex-induced vibration of a slender marine structure withlength to diameter ratio up to 200 is the objective of this study. This slender is free to move in both in-line and cross flow directions and immersed completely in water. Three different types of shear currents pass on it and cause to vibrate slender in different forms. Nowadays, these vibrations are very important for de...

Surface and 3D Triangular Meshes from Planar Cross Sections

This paper presents two unstructured mesh generation algorithms with a discussion of their implementation. One algorithm is for the generation of a surface triangular mesh from a parallel stack of planar cross-sections (polygons). The other algorithm is for the construction of a 3D triangular (tetrahedral) mesh of the solid region (polyhedron) bounded by the surface mesh and the planar cross-se...

a numerical model of vortex-induced vibration on marine risers

the steger and warming flux vector splitting implicit scheme is used to numerically solve two dimensional reynolds averaged navier–stokes (rans) equations governing the vortex induced vibration of a flexible riser laterally supported by a spring and a damper. the k–ε model is used as turbulence model to simulate the turbulent flow in the wake of the riser. to update the new position of the rise...

On the galloping instability of two-dimensional bodies having elliptical cross-sections