Article Dans Une Revue Journal of Turbomachinery Année : 2023

Hot-Wire Anemometry in High Subsonic Organic Vapor Flows

Leander Hake
  • Fonction : Auteur
Stefan Aus Der Wiesche
  • Fonction : Auteur
Stephan Sundermeier
  • Fonction : Auteur
Leon Cakievski
  • Fonction : Auteur
Joshua Bäumer
  • Fonction : Auteur
Paola Cinnella

Résumé

The present contribution reports the outcome of an experimental and numerical investigation of the behavior of a constant-temperature hot-wire anemometer in the high-subsonic flow up to a Mach number of 0.7 of the organic vapor Novec™ 649 at pressure and temperature levels of typical organic Rankine cycle (ORC) turbine applications. The experiments were carried out in the calibration section of a closed-loop organic vapor wind tunnel test facility enabling the independent variation of Reynolds numbers, Mach numbers, and total temperature within a certain range. It was found that the calibration and the determination of the sensitivity coefficients can be done in a way as proposed by de Souza and Tavoularis for air. The sensitivity coefficients for velocity and density were essentially equal for higher overheat ratios which support the interpretation of the signals and data reduction for turbulent quantities. Computational fluid dynamics (CFD) provided additional insight into potential real gas effects for hot-wire performance.

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Dates et versions

hal-05080739 , version 1 (23-05-2025)

Identifiants

Citer

Leander Hake, Stefan Aus Der Wiesche, Stephan Sundermeier, Leon Cakievski, Joshua Bäumer, et al.. Hot-Wire Anemometry in High Subsonic Organic Vapor Flows. Journal of Turbomachinery, 2023, 145 (9), ⟨10.1115/1.4062676⟩. ⟨hal-05080739⟩
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