We consider the evolution of a small rigid body in an incompressible viscous fluid filling whole space. The motion is modelled by Navier-Stokes equations, whereas described conservation law linear and angular momentum. Under assumption that diameter tends to zero density goes infinity, we prove solution fluid-rigid system converges equations full space without body.

Article history: Received:29.09.2013. Received in revised form: 17.12.2013. Accepted: 24.12.2013. A three-dimensional Computer Aided Design (CAD) model of the bearing sleeve casting is established by Pro/E software. The ViewCast program is utilized for studying casting processes of solidification and mould-filling in order to optimize the casting technology. Based on the solidification simulati...

We investigate the interfacial electro-chemical-hydrodynamics of an incompressible immiscible binary fluid system that moves in a narrow fluidic channel under time-periodic electroosmotic effects. We apply an alternating electrical voltage that sets the binary fluids in motion along the channel, whereas the channel walls are lined with chemical patch to alter the wetting characteristics of the ...

1. INTRODUCTION To benefit from the full potential of fluid concretes such as Self-Compacting Concrete (SCC) tools for prediction of the form filling of SCC are needed. Such tools should take into account the properties of the concrete, the shape and size of the structural element, the position of rebars, and the casting technique. The present lack of such tools may lead to selection of highly ...

Experimental studies have shown that right ventricular filling pressure (that is, intracavitary diastolic pressure) approximates pericardial surface pressure but, in many patients after removal of pericardial effusion, right ventricular filling pressure has been found to markedly exceed pericardial pressure recorded by an open catheter. The aim of this study was to determine whether this appare...

Reported case was 63 years old forester died suddenly in the village. Autopsy examination revealed massive coagulated haemorrhage filling the right hemithorax, neither free fluid nor blood were observed in the abdominal cavity. Abdominal aortic aneurysm 20x15x15 cm in size was examined. We aimed to report the rare case of abdominal aortic aneurysm presented with transdiafragmatic rupture and bl...

BACKGROUND Perineural cysts are sometimes found incidentally with magnetic resonance imaging, and clinical symptoms requiring treatment are rare. Perineural cysts typically exhibit delayed filling with contrast medium on myelography, which is one of the criteria used by Tarlov to distinguish perineural cysts from meningeal diverticula. We present a case of multiple thoracolumbar perineural cyst...

To obtain a better joint quality in butt welding of aluminum, the gap filling process and quantification effects on molten pool characteristic bubble formation were realized by three-dimensional thermal-mechanistic-fluid coupled model, with consideration heat transfer, fluid flow, phase change recoil pressure. The model was validated synchrotron-radiation result. competition between solidificat...