A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dispersion of windborne debris
Abstract The dispersion of windborne debris that is caused by the object's aerodynamics and shape is investigated. It is shown that the flight may be divided into two phases. The initial phase, where the relative velocity is high and the rate of rotation low, is characterised by high transverse accelerations. The second phase, which has much lower accelerations, can be modelled as that of a compact object, where only the drag force is significant. The initial conditions for the second phase are determined by the initial phase. Approximate solutions to the equations of motion are proposed for rectangular plate and rod type debris. The results are is good agreement with wind tunnel observations.
Highlights ► The dispersion of windborne debris caused by the object's aerodynamics and shape is considered. ► The trajectory is divided into two phases. ► The initial phase is characterised by high transverse accelerations. ► The second phase is modelled as that of a compact object, where only the drag force matters. ► Approximate solutions to the equations of motion are provided. ► The results are shown to match wind tunnel observations.
Dispersion of windborne debris
Abstract The dispersion of windborne debris that is caused by the object's aerodynamics and shape is investigated. It is shown that the flight may be divided into two phases. The initial phase, where the relative velocity is high and the rate of rotation low, is characterised by high transverse accelerations. The second phase, which has much lower accelerations, can be modelled as that of a compact object, where only the drag force is significant. The initial conditions for the second phase are determined by the initial phase. Approximate solutions to the equations of motion are proposed for rectangular plate and rod type debris. The results are is good agreement with wind tunnel observations.
Highlights ► The dispersion of windborne debris caused by the object's aerodynamics and shape is considered. ► The trajectory is divided into two phases. ► The initial phase is characterised by high transverse accelerations. ► The second phase is modelled as that of a compact object, where only the drag force matters. ► Approximate solutions to the equations of motion are provided. ► The results are shown to match wind tunnel observations.
Dispersion of windborne debris
Richards, Peter J. (author)
Journal of Wind Engineering and Industrial Aerodynamics ; 104-106 ; 594-602
2012-01-01
9 pages
Article (Journal)
Electronic Resource
English
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