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We choose a large atrium in Beijing for the object. This dissertation builds computational models under the stratified air conditioning design schemes according to the real geometry size of the building and the calculative parameter of the air conditioning. And the CFD method is used to realize the three-dimensional simulation of the temperature field and velocity field under the different air distributions...
Based on stable incompressible Reynolds-averaged Navier-Stokes equations and turbulence model, three dimension distribution on smoke of kitchen in an apartment unit is numerically simulated. A source term added in the concentration diffusion equation represents smoke produce rate. The contaminant concentration and velocity problems are resolved by control volume method in interlacing grid with SIMPLE...
With the computational fluid dynamics software FLUENT the flow field of flue gas from one 75 t/h circulating fluidized bed combustion boiler was simulated. The results showed that when air distribution was not taken into account, the flow of the two flue gases in the bag filter were not uniform. The flow field of coal flue gas was more disordered than that of biomass, but the majority of them moved...
There are several factors that affect the hygiene in the surgical operating theatres. The HVAC airside system plays an important role to maintain the adequate hygiene level in the operating theatres. The present paper displays comparisons between different HVAC airside designs to assess their impact on the surgery staff and patient health and comfort. The present work utilizes a numerical modelling...
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