Droplet Interaction And Dynamic Wettability Of
Advanced Materials Used In Aeronautics
Author(s)
O. Gohardani & D. W. Hammond
Abstract
In aircraft icing applications the interaction of Super-Cooled Liquid Droplets
(SLD) with the forward facing surfaces of an aircraft is of outmost importance,
as it influences the consequent icing that ensues on the structure. In this study,
empirical results are shown that characterize different droplet splashing scenarios
onto polymeric matrix composites reinforced with carbon nanotubes. Results are
presented for droplet interaction upon advanced pristine and eroded aerospace
materials based on a numerical scheme, that identifies different splashing features
into distinct categories. The purpose of utilizing the dynamic wetting analysis
scheme is to numerically represent the type of splashing events that are evident
on the experimental photographs. Images are presented for splashing features
on different surfaces and their similarities and differences are discussed based
on the analysis. Hydrophobicity and hydrophilicity of the different specimen
surfaces are further examined based on both static and dynamic contact angle
measurements and a correlation between the two modes of wetting is presented
for the aforementioned materials.
Keywords: dynamic wettability, contact angle, droplet interaction, carbon
nanotubes, aeronautics.
1 Introduction
The potential usage of advanced materials such as polymeric matrix composites
and carbon nanotubes have widely been recognized due to the number of
possible applications where these materials may present desired characteristics. In
aerospace applications, composite materials are widely being considered because
of their higher stiffness and strength [1]. The present study investigates the
Keywords
dynamic wettability, contact angle, droplet interaction, carbon
nanotubes, aeronautics.
Related Book
Other papers in this volume
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