A new wind tunnel facility for ice crystal icing experiments

Saeed, Ramiz and Buttsworth, David and Saleh, Khalid (2019) A new wind tunnel facility for ice crystal icing experiments. In: 2019 International Conference on Icing of Aircraft, Engines, and Structures, 17-21 June 2019, Minneapolis, MN, USA.

Abstract

The design and characterization of a new ice crystal icing wind tunnel facility is introduced through this work. The arrangement proposed in this work involves water droplet freeze-out using liquid nitrogen evaporation followed by natural particle melting through dilution with warm air. The viability of the concept was first demonstrated theoretically using a conservation of energy analysis. Thermodynamic performance of the facility is dictated largely by the availability of the liquid nitrogen, and in order to establish a facility with modest operating costs, the proposed operation specified using a maximum of 20 liter of liquid nitrogen per run with a maximum duration of two minutes. The target operating conditions for the facility were: flow speed around 50 m/s, temperatures around 0 ºC, and total water content up to 10 g/m3 with melting ratio up to 0.2. Experimental results have demonstrated a generally favorable agreement with the energy equation analysis, and with results from Computational Fluid Dynamics (CFD) simulations. Experiments have demonstrate sufficient uniformity of flow speed and temperature for the facility to be regarded as a viable wind tunnel for ice crystal icing experimentation. Although the measured flow speed was around 28 m/s, this can be readily increased to achieve the target condition in future work.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2019 SAE International. All Rights Reserved.
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 July 2013 -)
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 July 2013 -)
Date Deposited: 27 Jun 2019 06:22
Last Modified: 05 Jul 2019 05:21
Uncontrolled Keywords: aircraft icing, wind tunnel testing
Fields of Research : 09 Engineering > 0901 Aerospace Engineering > 090101 Aerodynamics (excl. Hypersonic Aerodynamics)
09 Engineering > 0906 Electrical and Electronic Engineering > 090603 Industrial Electronics
09 Engineering > 0901 Aerospace Engineering > 090105 Avionics
09 Engineering > 0913 Mechanical Engineering > 091302 Automation and Control Engineering
09 Engineering > 0901 Aerospace Engineering > 090104 Aircraft Performance and Flight Control Systems
Identification Number or DOI: 10.4271/2019-01-1926
URI: http://eprints.usq.edu.au/id/eprint/36593

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