Sökning: "Train Aerodynamics"
Hittade 5 avhandlingar innehållade orden Train Aerodynamics.
1. Unsteady Numerical Simulations of Flow around Heavy Vehicles, Trains and Passenger Cars
Sammanfattning : In this thesis several simulations have been carried out aimed at improving the knowledgeof vehicle aerodynamics and improving the flow around vehicles with respect to theaerodynamic drag. Four flows around different simplified vehicles have been considered. LÄS MER
2. Analysis of Flow Structures in Wake Flows for Train Aerodynamics
Sammanfattning : Train transportation is a vital part of the transportation system of today anddue to its safe and environmental friendly concept it will be even more impor-tant in the future. The speeds of trains have increased continuously and withhigher speeds the aerodynamic effects become even more important. LÄS MER
3. Studies of Two Aerodynamic Effects on High-Speed Trains : Crosswind Stability and Discomforting Car Body Vibrations Inside Tunnels
Sammanfattning : .... LÄS MER
4. Unsteady Numerical Simulations and Reduced-Order Modelling of Flows around Vehicles
Sammanfattning : In this thesis several simulations have been carried out aimed at improving the knowledge of vehicle aerodynamics and improving the flow around vehicles with respect to theaerodynamic drag. Five flows around different simplified vehicle models have been considered in five appended publications. LÄS MER
5. Numerical Simulations of Flows around Trains and Buses in Cross Winds
Sammanfattning : When cruising in strong winds, ground vehicles can experience strong aerodynamic forces and moments that may increase drag, reduce their stability, generate noise and induce accidents in the case of strong side winds. However, prevention of the unwanted influences of side winds requires that the flow structures around vehicles are fully understood in both the instantaneous and time-averaged flow. LÄS MER