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The technology of leak protection and leak control while drilling through physical methods can be successfully applied based on studying the annulus' behaviour of the whole down hole flow field. In this paper, the model of sealing down hole while drilling through physical methods which will be used for CFD simulation is eatablished through reasonable simplification. Then running numerical simulation...
Numerical simulation was carried out on the High Temperature Air Combustion of coal gas in an industrial furnace with a multi-jet burner. A Beta-function PDF (Probability Density Function) combustion model was selected to simulate the gas combustion combined with the standard k-ε turbulent model. The radiation was simulated by a Discrete Ordinates method. Thermal NOx model was used to calculate NO...
A two-fluid model was adopted to simulate the three-dimensional gas-liquid flow in an aeration tank. During the modeling, different process parameters of aeration tank was simulated, and the gas-liquid flow behavior in aeration tank was analyzed. The CFD simulation and PIV measurement were both used to analyze the flow field in the aeration tank. The result shows that with the increasing of the depth,...
Cold air distribution systems can potentially lower operating and first costs when compared to conventional air conditioning system. One concern for cold air distribution is that the cold supply air temperatures can be uncomfortable. Air distribution and comfort in a typical room with cold air diffusion was investigated by the method of CFD. A mathematics model was established and the air distribution...
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