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Full-Text Articles in Mechanical Engineering
Transient Analysis Of Full Scale And Experimental Downburst Flows, Junayed Chowdhury
Transient Analysis Of Full Scale And Experimental Downburst Flows, Junayed Chowdhury
Electronic Thesis and Dissertation Repository
Downbursts are highly transient natural phenomena which produce strong downdrafts evolving from a cumulonimbus cloud They induce an outburst of damaging winds on or near to the ground causing an immense damage to the ground mounted structures and aircrafts. This study investigates the transient nature of downbursts using wind speed records from full scale downburst events employing an objective methodology. This method can detect the abrupt change points in a downburst time series based on statistical parameters such as mean, standard deviation and linear trend. In addition to the analysis of the full scale downburst events, several large scale experimental …
Fundamentals Of Applied Smouldering Combustion, Marco Zanoni
Fundamentals Of Applied Smouldering Combustion, Marco Zanoni
Electronic Thesis and Dissertation Repository
Smouldering combustion is defined as a flameless oxidation reaction occurring on the surface of the condensed phase (i.e., solid or liquid). Traditional research on smouldering was related to economic damages, fire risk, and death, due to the release of toxic gases and slow propagation rates. Recently, smouldering has been applied as an intentional, engineering technology (e.g., waste and contaminant destruction). Smouldering involves the transport of heat, mass, and momentum in the solid and fluid phases along with different chemical reactions. Therefore, numerical models are essential for the fundamental understanding of the process. Smouldering models either neglected heat transfer between phases …