identification of damping parameter is usually more complicated and unreliable comparing to mass or stiffness identification in structural dynamics. there are many factors such as intermolecular friction, coulomb friction and viscous damping affecting the damping mechanisms in a structure. therefore it is difficult, and in some cases impossible, to describe the details of damping mechanisms by ...

in this paper, we study the effects of hall and ion-slip currents on the steady magneto-micropolar of a viscous incompressible and electrically conducting fluid over a horizontal plate by taking in to account the viscous dissipation effects. by means of similarity solutions, deviation of fundamental equations on the assumption of small magnetic reynolds number are solved numerically by using qu...

Silicone fluids belong to the group of pseudoplastic non-Newtonian with complex rheological characteristics. They are considered in basic and applied researches a wide range industrial applications due their favorable physical thermal properties. One specific field automotive industry is working fluid viscous torsional vibration dampers. For numerical studies design development phase this dampi...

The thermal effect of the viscous oil film hydrostatic bearings is key factor causing bearing errors, and working surface with microgroove structures can potentially inhibit effectively ensure accuracy. In this study, a modeling method for heat generation rectangular established, influence design scales onto studied. First, flowing field numerical simulation model established verified by publis...

Compressor suction and discharge lines in refrigeration systems must be designed to move compressor lubricants along the pipeline. This paper presents experimental and analytical results that describe the characteristics of two-phase, viscous liquid flows. Smooth-walled, flat plate test sections have been designed to allow flow visualization studies of the oil flow in different flow orientation...

Abstract This paper is concerned with the experimental investigation of jets formation in a classic microchannel low aspect ratio a/r=0.125. The confined are obtained Y-shaped using isopropyl alcohol and ethanol viscous outer medium represented by mineral oil. In cases high flow rate inner interface has an important contribution on velocity distribution inside jet.

Abstract Capillary forces result in the trapping of oleic phase porous media even after extensive flushing with brine. Alkali‐surfactant‐polymer formulations drastically diminish capillary forces, whereas adding polymer to water increases viscous resulting highly efficient extraction residual oil. However, by virtue its scale, above process requires a large quantity chemicals, which poses threa...