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Tracking airborne Legionella and Legionella pneumophila at a biological treatment plant
(2008)
Biological treatment plants are frequently used to degrade organic substances in wastewater from wood refinement processes. Aeration ponds in such plants provide an optimal growth environment for many microorganisms, ...
Consequence assessment of indoor dispersion of sarin-A hypothetical scenario
(2010)
The objective of this study is to provide a hypothetical scenario of indoor dispersion of the highly toxic nerve agent sarin in a large building, which can be used as a starting point for discussion, planning, training and ...
Post-blast explosive residue-a review of formation and dispersion theories and experimental research
(2014)
The presence of undetonated explosive residues following high order detonations is not uncommon, however the mechanism of their formation, or survival, is unknown. The existence of these residues impacts on various scenarios, ...
Large-eddy simulation of dense gas dispersion over a simplified urban area
(2017)
Dispersion of neutral and dense gas over a simplified urban area, comprising four cubes, has been investigated by the means of large-eddy simulations (LES). The results have been compared to wind tunnel experiments and ...
Large-eddy simulations of dense-gas dispersion within a high-Reynolds number turbulent boundary layer
(2017)
Large-eddy simulations of flows over a backward-facing step with release of four different gases with increasing densities have been performed. The results have been analysed with particular emphasis on the part of the ...
Assessment of the dispersion of Legionella-containing aerosols from a biological treatment plant
(2011)
Legionella was detected in aeration ponds (biological treatment plant) at Borregaard Ind. Ltd., Norway, and in air samples harvested directly above these ponds. Since 2005, three outbreaks of legionellosis occurred within ...
Flow noise reduction from superhydrophobic surfaces
(2012)
This work investigates how a highly (super)hydrophobic
surface can be used to reduce turbulence-generated drag and
noise on a towed streamer cable. The work is done by analyzing
full-scale drag and flow noise measurements ...
On the Use of Computational Fluid Dynamics to Investigate Aerosol Dispersion in an Industrial Environment: A Case Study
(2012)
Aerosol dispersion in the area surrounding an existing biological treatment facility is investigated using large-eddy simulation, with the objective to investigate the applicability of computational fluid dynamics to complex ...
Anisotropy and shear-layer edge dynamics of statistically unsteady,stratified turbulence
(2015)
Direct numerical simulation data of an evolving Kelvin-Helmholtz instability have been analyzed in order to characterize the dynamic and kinematic response of shear-generated turbulent flow to imposed stable stratification. ...
A model for the viscous dissipation rate in stably stratified, sheared turbulence
(2013)
A model for the turbulence dissipation rate in stably stratified shear turbulence is developed and validated. The functional dependence of the model is derived from first principles and it represents a conceptually new ...