Viscoelastic flow in a square cavity is studied in detail for the FENE-CR model with a given value of extensibility. A finite volume method was employed to predict both the steady flows resulting from movement of the top cavity wall and also the recoil flows that follow the cessation of that lid-wall motion, when the fluid possesses viscoelastic properties. It is shown that this recoil flow can...

The purpose of this study is the investigation heat transfer and fluid flow around a heated solid block inside lid-driven cavity filled with hybrid TiO2-Cu/water nanofluid. considered geometry two-dimensional an aspect ratio 5. upper wall translates uniform velocity Ulid. attached to bottom maintained at high temperature compared lower walls, whereas other walls are kept insulated. nanofluid as...

A numerical investigation was carried out in order to predict the effects of symmetric heating on irregular acoustic streaming in air-filled shallow enclosures. The fluid motion is driven by periodic vibration of the enclosure left wall. The vertical walls of the enclosure are adiabatic while the horizontal walls are heated symmetrically. A control-volume method based, explicit time-marching Fl...

Thermal flow phenomena in a double lid–driven enclosure have many potential applications numerous engineering domains. The present article theoretically investigates the heat transfer analysis of power-law fluid hexagonal cavity embedded with square obstacle. upper and lower lid walls are considered heated along centered square, while rest thermally insulated. In addition, horizontal uniformly ...

abstract: since the field of micro electromechanical systems (mems) continues to grow, the flow in micro devices have become an area that receives a significant attention. the microscopic flows are usually characterized by the knudsen number (kn). when the characteristic size of the particle decreases down to a value comparable to the mean free path of the molecules, the continuum assumption fa...