CFD-supported data reduction of hot-wire anemometry signals for compressible organic vapor flows

For obtaining turbulent fluctuations in compressible organic vapor flows, computational fluid dynamics (CFD) analysis tools were used to support the data reduction process of hot-wire anemometry signals. It was found that CFD can help during the calibration process of actual hot-wire probes operated...

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Bibliographic Details
Published in:Journal of physics. Conference series 2023-05, Vol.2511 (1), p.12011
Main Authors: Hake, L, Sundermeier, S, Wiesche, S aus der, Bienner, A., Gloerfelt, X, Matar, C, Cinnella, P
Format: Article
Language:English
Subjects:
Compressibility
Computational fluid dynamics
Data reduction
Fluid flow
Mach number
Numerical analysis
Physics
Turbulence
Vapors
Velocity measurement
Wire
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Summary:For obtaining turbulent fluctuations in compressible organic vapor flows, computational fluid dynamics (CFD) analysis tools were used to support the data reduction process of hot-wire anemometry signals. It was found that CFD can help during the calibration process of actual hot-wire probes operated in the constant-temperature mode. Such an approach is beneficial for determining the dependency of the sensitivity coefficients on Reynolds and Mach numbers. Due to the small Kolmogorov scales, corrections are needed for probes with finite wire lengths. The experimental and numerical analysis considering the decay of turbulence downstream a grid indicated that the correction scheme proposed by Wyngaard leads to consistent results for compressible organic vapors. The new developments provide recommendations for obtaining turbulent quantities of compressible organic vapor flows utilizing hot-wire anemometry.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2511/1/012011