Papers Presented at the 5th International Symposium on the Aerodynamics & Ventilation of Vehicle Tunnels, Lille, France 20-22 May, 1985, Volume 6J. H. Pounsford |
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Page 479
... flow recirculation coefficient would not be affected except for any resulting change on the L / H ratio . The transverse flow coefficients for both the ramp and open - section regions would be modified by the portal extension adjustment ...
... flow recirculation coefficient would not be affected except for any resulting change on the L / H ratio . The transverse flow coefficients for both the ramp and open - section regions would be modified by the portal extension adjustment ...
Page 480
... flow coefficient , the average measurement when gas was released along the open section was divided by the measurement when gas was released just ... flows . The recirculation and entrainment flow coefficients are calculated by use 480.
... flow coefficient , the average measurement when gas was released along the open section was divided by the measurement when gas was released just ... flows . The recirculation and entrainment flow coefficients are calculated by use 480.
Page 485
... factors that , in general , are to multiply the base coefficient ( in series ) . The entrainment flow coefficients are computed from the recirculation coefficients in the open sections and are taken from Table 2 for the ramp regions ...
... factors that , in general , are to multiply the base coefficient ( in series ) . The entrainment flow coefficients are computed from the recirculation coefficients in the open sections and are taken from Table 2 for the ramp regions ...
Contents
Aerodynamics and Ventilation of Vehicle Tunnels | 1 |
J Cockram London Regional Transport U | 8 |
D1 An investigation of atmospheric pressure differences affecting the longitudinal ventilation of road | 189 |
Copyright | |
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aerodynamic air flow air velocity anemometer average booster fans British Railways Board BURRARD STATION calculation cars concentration cross-section curves dampers diffusion direction drag coefficient duct effect electrostatic precipitator emergency emission entrainment equation equipment exhaust air exit portal extraction factor Figure fire flow coefficients flow rate Fluid Engineering Centre fresh air friction gradient jet fans km/h Lille longitudinal diffusion longitudinal ventilation m³/s maximum measurements mechanical ventilation method metro Mitterberg one-way traffic open sections operation parameters passengers platform pollution pressure changes pressure difference QF MAX railway ramp ratio recirculation road tunnels shear stress simulation smoke SNCF station supply tests tracer gas train wind trainset Transbay Tube transducers tunnel air tunnel exit tunnel length tunnel portals tunnel ventilation tunnel wall turbulence underground values VENTILATION OF VEHICLE ventilation shaft ventilation system wave wind velocity