Abstract
For a flow with time-dependent temperature, velocity and temperature can be determined as functions of time by analysing the time-dependence of temperature of two wires of different values of the thermal time-constant. Neither of the wires, immersed in the flow, is heated like in the case of hot-wire anemometry.
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References
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Sakao, F. 1973: Constant temperature hot wires for determining velocity fluctuations in an air flow accompanied by temperature fluctuations. J. Phys. E: Sci. Instrum. 6, 913–916
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Sakao, F. Proposal of a new method to determine the varying temperature and velocity of a flow field with dual cold wires. Experiments in Fluids 2, 111 (1984). https://doi.org/10.1007/BF00261331
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DOI: https://doi.org/10.1007/BF00261331