Numerical and experimetal assessment of a flow field in a ventilated industrial hall

The paper presents the results from a numerical and experimental investigation of the velocity distribution in a ventilated industrial hall in the nuclear power plant in Bulgaria. The room with a complex geometry and irregular boundary conditions was calculated using the finite volume discretisation of the Reynolds-averaged Navier-Stokes equations closed by the standard k-e turbulence model. The numerical results are compared with the experimental data in representative cross-sections which shows a satisfactory agreement. Discrepancies are found to be mainly due to uncertainties in the imposed boundary conditions as well as to the complex irregular structure of the flow.