natural ventilation,fluid dynamics process,RANS method,Navier stokes equations,


The natural ventilation is flow through a closed surfaces. The internal air quality is good when the process of flow is continuous state of inlet and exhaust. By these way this paper described the room with close surfaces and flow direction comparison. Two open window with similar dimension are taken with top and bottom. The velocity of the flow inside are measured and determined a per measurements. By estimating the natural flow inside building the computational fluid dynamics process taken placed by using both concepts such as RANS method and LES method such as capturing the large eddy and by following governing Navier stokes equations


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