College of Engineering

Dept. of Aerospace Engr.


Aircraft Icing Physics & Anti-/De-icing Technology Laboratory








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A Flayer about ISU-IRT

ISU Usage rate (updated on 10/01/2021)


Icing Research Tunnel of Iowa State University (ISU-IRT), which was donated by UTC Aerospace System (former Goodrich Inc.) to ISU in 2010, is a newly refurnished, research-grade icing wind tunnel. ISU-IRT is a multi-functional icing research tunnel. It can be run over a range of test conditions from rime ice to extremely wet glaze ice, which can be used to duplicate/simulate icing phenomena over a range of conditions for icing physics studies pertinent to aircraft/aero-engine/power transmission line/wind turbine icing and various anti-/de-icing applications. 


The working parameters of ISU-IRT are:

  • Test section size:                 W X H X L = 400mm (height) by 400mm(width) by 2,000mm (length);

  • Airflow speed:                     Vair = 5 to 60 m/s;

  • Airflow temperature:         Tair = -25oC to 20oC;

  • Water Droplet Size:            d = 10 ~ 100 micrometers;

  • Liquid Water Content:        LWC = 0.1 to 5.0 grams/cubic meter.


A schematics of ISU-IRT

KCCI News Report about ISU-IRT on 02/14/2014




Icing Research Tunnel (ISU-IRT) of Iowa State University



(a). Over the upper surface of the airfoil


 (b). Over the lower surface of the airfoil

Glaze ice accretion process over a NACA0012 airfoil with airflow speed V=35m/s, T=-8°C, α = 5.0 deg. (Waldman & Hu, 2015)



              (a). airflow velocity V=15m/s                                       (b). airflow velocity V=20m/s                                                  (c). airflow velocity V=25m/s

Surface water rivulet/film flow over a NACA0012 airfoil pertinent to aircraft icing phenomena  (Zhang, Tian and Hu, 2015)



Effects of superhydrophobic surface (SHS) coating on the ice accreting process over an airfoil surface (Waldman & Hu, 2015)


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Department of Aerospace Engineering, Iowa State University, 2271 Howe Hall, Room 1200, Ames, Iowa 50011
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