Numerical Simulation on Nozzle Air Supply Performance in Large Space Building
نویسندگان
چکیده
To study the performance of nozzle air supply in a large space building, this paper builds a simplified computational model of a large exhibition hall applied with vertical nozzle air supply system using the method of computational fluid dynamics (CFD). The Fluent software is used to realize the three-dimensional simulation and obtain the temperature field and velocity field in the occupied zone at nozzles height of 23m and 33m in summer, respectively. Analysis on simulation results of two cases show that the uniformity of temperature and velocity fields in the occupied zone at nozzles height of 23m are better than 33m under the design condition. The paper also contrasts the simulation result to the axial velocity decay by means of classical jet current formula and puts forward some advices to improve the performance of nozzles in large space building.
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