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 scaled-up models of the HSA probe were performed.
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Received: 24 April 2001/Accepted: 16 December 2001
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Olim, A., Riethmuller, M. & da Silva, M. Flowfield characterisation in the wake of a low-velocity heated sphere anemometer. Exp Fluids 32, 645–651 (2002). https://doi.org/10.1007/s00348-001-0403-6
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DOI: https://doi.org/10.1007/s00348-001-0403-6