This paper describes the fluid mechanics of natural ventilation by the combined effects of buoyancy and wind. Attention is restricted to transient draining flows in a space containing buoyant fluid, when the wind and buoyancy forces reinforce one another. The flows have been studied theoretically and the results compared with small-scale laboratory experiments. Connections between the enclosure...

Horizontal convection in a rectangular enclosure driven by a linear temperature profile along the bottom boundary is investigated numerically using a high-resolution spectralelement discretization in space and a third-order time integration scheme for velocity and temperature fields. A Boussinesq approximation is employed to model buoyancy. The emphasis of this study is on the scaling of Nussel...

The morphogenesis of the C. elegans embryo is largely controlled by the development of the epidermis, also known as the hypodermis, a single epithelial layer that surrounds the animal. Morphogenesis of the epidermis involves cell-cell interactions with internal tissues, such as the developing nervous system and musculature. Genetic analysis of mutants with aberrant epidermal morphology has defi...

The linear stability of the incompressible flow in an infinitely extended cavity with rectangular cross-section is investigated numerically. basic driven by a lid which moves tangentially, but at yaw respect to edges cavity. As result, superposition classical recirculating two-dimensional lid-driven orthogonal wall-bounded Couette flow. Critical Reynolds numbers computed analysis are found be s...

In this study, a numerical simulation is carried out investigation the mixed convection in an open lid _driven wall cavity attached to horizontal rectangular channel. Three different cases were considered depending on direction of moving sidewalls cavity. case(1), no walls assumed ; While for case (case 2) left sidewall moves downward, (case3) both and right are downward. A comparative case( ca...

In this study, the two-dimensional (2D), lid-driven cavity flow of chiral liquid crystals (LCs) was modelled using Landau de-Gennes (LdG) theory. Parametric studies investigating effect Er (Ericksen number) and Θ (chiral strength) on microstructure LCs were performed. we observed that an increase in caused texture to have more striations shorter pitch lengths as causes for increased number defe...