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The Effect of Face Topography on Frostbite

Author
Chen, Fang; Huan, Zhongling; Kendl, Sarah; Cambonchi, Alejandra
Abstract
Winters in most countries within the Northern hemisphere, which include heavily populated
regions of Russia, Canada, China, and the United States, are commonly known to be harsh,
unforgiving, and unpredictable. Cold weather injuries such as frostbite can occur within only a
few minutes of exposure to extremely cold temperatures and high wind chill. We seek to
provide a quantitative model of the effects of extremely cold and freezing temperature on the
face and the extent of damage to tissue over time. In this study, our model will take into account
the airflow of cold temperature on the face and the convective heat given off by the face. Using
the duo model, we will be able to show the severity of tissue damaged.
In this study, we consider both the tissue temperature on the face and the temperature of the
airflow. To investigate the mechanism of forced convection heat extraction in the face, we will
use COMSOL, a multiphysics finite element analysis and simulation software, to develop a
simple geometry of the face and replicate the heat exchanging properties when exposed to
extreme temperature conditions. Our model will be a 3D simulation of the face with boundary
conditions a close distance away from the face. We are primarily focused on simulating that the
airflow is coming directly in front of the face and that is where the primary damage will occur.
We will use the data provided by the National Weather Service that demonstrates how quickly
hypothermia and frostbite can occur depending on the windchill and temperature.
The model will demonstrate the extent of damage that can occur in varied temperature settings. It
will simulate how long the body can retain thermal energy while convective heat loss is
simultaneously occurring. This model will allow us to demonstrate the importance of
preventative care during extreme temperature conditions to avoid frostbite. It will allow us to
quantitatively demonstrate how much tissue is damaged to help diagnose and treat frostbite
cases.
Date Issued
2019-05Subject
Frostbite
Type
presentation
Accessibility Feature
large print