Abstract
Vorticity, the measure of the rotation of a fluid element, is an important characteristic of turbulence. There have been numerous attempts using various methods to measure vorticity. Vorticity measurements in turbulent flows using a hot-wire/hot-film anemometer (HWA) are briefly reviewed in this paper. The velocity components and their partial derivatives were measured simultaneously using a newly constructed 6-sensor hot-wire (HW) probe assuming ideal yaw and pitch factors and using Jorgensen’s expression and Taylor’s hypothesis to analyze the data. Accurate results from the 6-sensor HW probe for the velocity field were used to determine the velocity gradients and, therefore, the vorticity vector field in an isothermal model of a tangentially fired furnace (TFF). Numerical results for the TFF compared well with the experimental data.
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