Numerical simulations have been used to study the phenomenon of autorotation of a flat plate hinged about its center in a freestream. The focus of the paper is on examining the effect of Reynolds number and plate thickness ratio on vortex induced rotation. The numerical solver employed is based on a sharp interface, Cartesian grid method that allows us to simulate flow with moving boundaries on...

the shanghai cooperation organization (sco) is developing into a major regional institution in the heart of central eurasia. to make any predictions about the sco, one must examine factors contributing to russian and chinese foreign policy behaviors in central asia. does the seductive presumption of a looming battle for control of eurasia smell of a new “great game” and great power rivalry? ans...

This paper presents a simple and systematic way for imposing boundary conditions in the differential quadrature free and forced vibration analysis of beams and rectangular plates. First, the Dirichlet- and Neumann-type boundary conditions of the beam (or plate) are expressed as differential quadrature analog equations at the grid points on or near the boundaries. Then, similar to CBCGE (direct ...

the isogeometric analysis is increasingly used in various engineering problems. it is based on non-uniform rational b-splines (nurbs) basis function applied for the solution field approximation and the geometry description. one of the major concerns with this method is finding an efficient approach to impose essential boundary conditions, especially for inhomogeneous boundaries. the main contri...

When joining between GA980 and A6061 plates by the FSSW, brittle intermetallic compounds Zn-contained region are formed at joint interface. These local reaction products determine strength of joint. Therefore, bonding interface microstructure analysis is crucial to control process improve strength. This study performed microstructural near on GA980/A6061 joints bonded FSSW. The detailed variati...

Earthquakes in India are caused by the release of elastic strain energy created and replenished by the stresses resulting from India’s collision with Asia. Accumulating strain distorts the surface of the Indian plate, which despite its slow development can now be detected using precision geodesy. The largest and most severe earthquakes occur on the boundaries of the Indian plate to the east, no...

Extension deficit builds up over centuries at divergent plate boundaries and is recurrently removed during rifting events, accompanied by magma intrusions and transient metre-scale deformation. However, information on transient near-field deformation has rarely been captured, hindering progress in understanding rifting mechanisms and evolution. Here we show new evidence of oblique rift opening ...