9th International Conference on Aerodynamics and Ventilation of Vehicle Tunnels : developments for the 21st Century : papers presented at the 9th International Symposium on Aerodynamics and Ventilation of Vehicle Tunnels, held in Aosta Valley, Italy, 6-8 October 1997
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書誌事項
9th International Conference on Aerodynamics and Ventilation of Vehicle Tunnels : developments for the 21st Century : papers presented at the 9th International Symposium on Aerodynamics and Ventilation of Vehicle Tunnels, held in Aosta Valley, Italy, 6-8 October 1997
（BHR Group conference series publication, no. 27）
Mechanical Engineering Publications, c1997
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内容説明
The use of tunnels to improve transport networks by traversing increasingly large and difficult physical obstacles is acclerating. In developed urban areas, tunnels are also being used to ease congestion and reduce pollution by putting traffic underground. In parallel with new construction, many older tunnels are being refurbished, including ventilation improvements to enhance safety in both the normal operational environment and in emergency, particularly fire, situations. Meanwhile the ability to design efficient and safe ventilation systems for increasiungly long tunnels is being developed by the advances in analysis, calculation and simulation techniques using CFD techniques. The papers from this ninth international conference held at Aosta Valley, Italy, in October 1997 cover aspects of both road and rail tunnels.
目次
- Opening address: ventilation of tunnels in the Italian motorway network - research, evolution, and trends. Aerodynamics - Road I: new attempts to solve an old problem - aerodynamic measurements in new vehicle tunnels
- investigation of the wall-friction, pressure distribution, and the effectiveness of big jet fans with deflection blades in the Fodness tunnel in Norway
- the influence of separation, inclination, and swirl on single and coupled jet fans installation efficiency
- the effects of jet plume configuration on the installation efficiency of jet fans. Aerodynamics - Road II: study on prediction methods for air quality control for complex road structures
- stack effect use in road tunnel ventilation - an analysis based on experimental data and simulations
- new french recommendations for fire ventilation in road tunnels
- some thoughts on the design of a road tunnel ventilation system for a fire
- composition of a grading function for performance of road tunnel ventilation control
- development of a traverse ventilation simulator for long tunnels with merging and diverging sections in urban areas
- a new pressure measurement system on a moving motorcar for analyzing aerodynamics of road tunnels. Equipment: the application of aeroacoustic principles to the suppression of fan noise in underground metros
- specifying dampers to maximize performance for tunnel ventilation systems
- adjustable impeller blades or speed regulation for axial fans of tunnel ventilation systems
- simulation of exhaust flow noise from ventilation tower of vehicle tunnels. Aerodynamics - Rail I: The analysis of uncertainty for an aerodynamic drag in the Simplon Tunnel
- simulation of compressible flow phenomena in the Swiss metro tunnel network
- airshafts for the alleviation of pressure waves in tunnels of the new Swiss Rail 2000
- a new test facility for the study of interacting pressure waves and their reduction in tunnels for high speed trains
- guidance for aerodynamically sizing the cross-section of railway tunnels
- computation of incompressible flow in air network. Thermodynamics - Rail II: Ventilation requirements for diesel-hauled train operation through tunnels
- heat transfer in a train/tunnel annulus
- theoretical and experimental investigation of changing atmospheric conditions inside an occupied confined space with particular reference to a stationary railway vehicle in a tunnel
- control for a heat regime of the railway tunnels located in severe climatic condition. (Part contents).
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