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Showing 1 to 8 of 8 for “"THERMAL PLUMES"”.
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Forward scattering of a pulsed continuous wave signal through laminar and turbulent thermal plumes
The results of an experiment examining the forward propagation or an acoustic signal through a buoyant plume are discussed. Two distinct testing sights were used. One made use of a small fresh water tank in NUWC to provide a controlled plume. The other used a larger salt water tank at WHOI to …
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System design of an unmanned aerial vehicle (UAV) for marine environmental sensing
… such phenomena: Harmful Algal Blooms (HABs) and thermal plumes. A complete field-operable system was developed to identify and characterize HAB events through a human-monitored supervisory control system. This capability was extended with an infrared imaging camera for remote sensing of thermal …
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Geothermal Systems Performance and Environmental Impacts
… GSHPs have many advantages, they might develop thermal subsurface plumes, which can affect the efficiency of the system and other subsurface infrastructures. In the present research, the effect of a multi-borehole vertical GSHP system located in various locations in Canada was examined. To do …
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Numerical Modeling of Turbulent Combustion and Flame Spread
… been tested against both plane and axisymmetric thermal plumes and an axisymmetric buoyant diffusion flame. When compared with the widely used standard buoyancy-modified model, it gives significant improvement on numerical results. These developed models have been fully incorporated into CFD …
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Thermal sustainability of low-temperature geothermal energy systems: System interactions and environmental impacts.
… Due to their good efficiency, the use of geothermal energy is often encouraged; however, two issues arise in the long-term use of ground for thermal purposes: the sustainability and impact of these systems on the environment. Studies show the potential of the geothermal heat exchangers for …
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Flow visualisation and fundamental aspects of two-dimensional turbulent plumes
Understanding the behaviour of turbulent, buoyant plumes is fundamental to modelling a multitude of fluid dynamics problems, for example, indoor airflows. Specifically, this thesis focuses on the turbulent plumes which develop above sources which directly supply buoyancy, but zero momentum, to the …
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Lagrangian dynamics of turbulence: Applications with 3D particle tracking velocimetry
… to uncover distinctive Lagrangian statistics of thermal plumes. A laterally extended investigation volume allowed for capturing dynamics of the high vertical motion. The PDFs of the vertical Lagrangian acceleration exhibit heavier tails than the lateral acceleration. The second-order PDFs …
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ΠΕΙΡΑΜΑΤΙΚΗ ΜΕΛΕΤΗ ΤΟΥ ΑΤΜΟΣΦΑΙΡΙΚΟΥ ΟΡΙΑΚΟΥ ΣΤΡΩΜΑΤΟΣ ΠΑΝΩ ΑΠΟ ΕΝΑ ΟΞΥ ΒΟΥΝΟ
A DETAILED EXPERIMENTAL STUDY OF THE ATMOSPHERIC BOUNDARY LAYER OVER THE TOP OF A HIGH STEEP MOUNTAIN IS PRESENT. THE INSTRUMENTATION INCLUDED A CONVENTIONAL BISTATIC AND A HIGH-RESOLUTION MONOSTATIC ACOUSTIC SOUNDER, AN ATMOSPHERIC TURBULENCE PROBE, A TETHERED BALLOON AS WELL AS STANDARD GROUND …