In turbulent mixed convection conditions, flow and heat transfer can deteriorate under specific thus affecting the performance of safety system, which could imperil nuclear reactor. this paper, by analyzing velocity, temperature distributions, other thermal-hydraulic parameters, steady-state computational fluid dynamics approach with SST k–? turbulence model used in study was verified. Then, ch...

The equilibrium of a modeled windand buoyancy-driven, baroclinically unstable, ‡ow is analyzed using the transformed Eulerian-mean (TEM) approach described in Part I. Within the near-adiabatic interior of the ‡ow, Ertel potential vorticity is homogenized along mean isopycnals, a …nding readily explained using TEM theory, given the geometry of the domain. The equilibrium, zonal-mean buoyancy str...

the objective of this work was to develop and evaluate the levofloxacin hemihydrate floating formulations (f1-f9). selection of optimized batch was done by model dependent approach and novel mathematical approach. f1-f9 batches were prepared by direct compression method using gelucire 43/01 (hydrophobic) and hydroxypropylmethylcellulose (hydrophilic) polymer in different ratios. the floating ta...

More than 90% of the toxic gas in industrial production process is heavy gas. However, under non-isothermal conditions, due to uncertainty direction buoyancy, traditional ventilation method cannot be used discharge heat and pollutants. In this study, we adopted numerical simulation. The model study a two-dimensional double-diffusion model. typical heavy-specific gravity sulphur hexafluoride (SF...

We investigated intraspecific geographic variation in buoyancy by obtaining percentage buoyancy (%B) measurements for the Antarctic notothenioid species Pleuragramma antarcticum, Trematomus hansoni, T. bernacchii and Gymnodraco acuticeps from both McMurdo Sound in East Antarctica and the South Shetland Islands in West Antarctica. Mean percentage buoyancies in these species ranged from 0.22–0.52...

The structure and propagation properties of triple flames subject to buoyancy effects are studied numerically using a high accuracy scheme. A wide range of gravity conditions, heat release, and mixing widths for a scalar mixing layer are computed for ’upright’ and ’inverted’ triple flames (i.e, gravity pointed in parallel and in opposite directions of flame propagation). These results are used ...

The Deepwater Horizon oil spill occurred in the summer of 2010 and coincided with the spawning window of the ecologically and economically important pelagic fish mahi-mahi (Coryphaena hippurus). During summer months, early life stage mahi-mahi were likely also exposed to other naturally occurring stressors such as increased temperature and ultraviolet radiation (UV). Previous research has shown...

We studied the buoyancy of 263 specimens of the sympatric sister species Notothenia coriiceps and N. rossii captured at King George Island. In these species without a swim bladder, we expressed measurements of buoyancy as percentage buoyancy (%B = weight in water/weight in air × 100), with smaller numbers reflecting more buoyant (i.e. less dense) species. Mean %B of N. coriiceps (4.34%) was sig...

Selective harvesting can cause evolutionary responses in populations via shifts in phenotypic characteristics, especially those affecting life history. Brine shrimp (Artemia franciscana) cysts in Great Salt Lake (GSL), Utah, USA are commercially harvested with techniques that select against floating cysts. This selective pressure could cause evolutionary changes over time. Our objectives are to...