Unsteady mixed convection flows in a lid-driven square cavity filled with a fluid-saturated porous medium is investigated numerically. The two vertical walls of the enclosure are insulated while the bottom wall is cooled. The top wall is heated sinusoidally and moving at a constant speed. The governing equations are solved numerically by using finite volume method with SIMPLE algorithm. The res...

nowadays green house gases such as carbon have the most effect on global climate changes that can be decreased by plant and soil carbon sequestration of rangelands. livestock grazing has high potential to decrease or increase carbon storage. so this research investigated the effects of enclosure on plant carbon storage in rangeland of enclosure (shah tappeh-chah mahmood) and no enclosure (chiro...

INTRODUCTION The Tokai Power Station (Tokai 1), a 166MWe gas-cooled graphite-moderated reactor of advanced Calder-Hall type, ceased commercial operation in March 1998 after 32 years of service, and spent fuels are being discharged from the core at present for preparation of decommissioning the reactor. Plans for the decommissioning that include future dismantling work, have been studied since t...

This work focuses on the experimental and numerical investigation of maximum overpressure pressure dynamics during ignited hydrogen releases in a storage enclosure, e.g., marine vessel or rail carriage, with limited vent size area, i.e., peaking phenomenon (PPP) revealed theoretically at Ulster University 2010. The CFD model previously validated against small scale experiments 1 m3 enclosure is...