Flowfield characterisation in the wake of a low-velocity heated sphere anemometer
Riethmuller, O. A. M. M. L. and Silva, M. C. G.
2002 Experiments in Fluids, 32, 645-651
Riethmuller, O. A. M. M. L. and Silva, M. C. G., (2002), "Flowfield characterisation in the wake of a low-velocity heated sphere anemometer", Experiments in Fluids, 32, 645-651.
Abstract:
Heated sphere anemometers (HSA) are the most widely used instruments for low-velocity measurements in the heating, ventilation and air-conditioning industry. Experiments were conducted to characterise the flowfield around the spherically shaped sensor and upper probe assembly of a HSA. Particle image velocimetry was the main quantitative experimental technique. Measurements of the flowfield around a HSA probe and a 2:1 scaled-up model were performed in a uniform isothermal axisymmetrical jet air flow at Re around 350, based on sensor diameter, for different pitch angle incident flows. Additionally, extensive flow visualisation studies around scaledup models of the HSA probe were performed.
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