Development of a Supercooled Large Droplet Environment within the NRC Altitude Icing Wind Tunnel

Paper #:
  • 2015-01-2092

Published:
  • 2015-06-15
DOI:
  • 10.4271/2015-01-2092
Citation:
Orchard, D., Clark, C., and Oleskiw, M., "Development of a Supercooled Large Droplet Environment within the NRC Altitude Icing Wind Tunnel," SAE Technical Paper 2015-01-2092, 2015, https://doi.org/10.4271/2015-01-2092.
Pages:
6
Abstract:
Simulations of supercooled large droplet (SLD) icing environments within the NRC's Altitude Icing Wind Tunnel (AIWT) have been performed in which broad band mass distribution spectra are achieved that include a distinct pattern of liquid water content (LWC) over a range of droplet sizes (i.e., bi-modal distribution). The mass distribution is achieved through modification of the existing spray system of the AIWT to allow two spray profiles with differing LWC and median volumetric diameter (MVD) to be simultaneously injected into the flow.Results of spray profile distributions measured in the test section have demonstrated that freezing drizzle conditions, where MVD is either less than or greater than 40 μm, can be achieved. Work performed to provide freezing rain conditions is also discussed and highlights the challenges of providing this environment as a result of limitations of the spray system in providing the large droplet sizes (up to 1 mm diameter) or where gravitational settling of these larger drops prevents them from reaching the test section.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Technical Paper / Journal Article
1999-10-19
Article
2016-12-08
Technical Paper / Journal Article
2011-06-13
Technical Paper / Journal Article
2011-04-12