Pressure loss mechanism at the inflow opening of Cross-Ventilation is studied by detailed analysis of LES results. Manipulation of energy transfer equation through inflow openings suggests that reduction of discharge coefficient should be originated from dynamic pressure in tangential direction and should be observed as increased static pressure at the opening. Analysis of virtual stream tube reveals that the static pressure at the opening is transferred to dynamic pressure as 'vena contracta' in part and the remaining static pressure is dissipated as generation of turbulent kinetic energy
Study on Pressure Loss Mechanism at the Inflow Opening of Cross-Ventilation
Year:
2004
Bibliographic info:
RoomVent 2004, 9th international conference in University of Coimbra - Portugal, 5-8th september 2004, pp 6, 12 Fig., 3 Tab., 4 Ref.