Module 4- Real-World Physics Discussion
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Embry-Riddle Aeronautical University *
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Course
102
Subject
Aerospace Engineering
Date
Nov 24, 2024
Type
docx
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2
Uploaded by CountHyenaPerson312
1
Hi class,
For this week's topic, I chose to talk about pressure. My 1st impression of
the idea of pressure went something like this, "pressure" yeah I know the
concept, we use air to fill up the tires of our car, and the more air in it the
more pressure it has. Well, folks I really only understood like 5% before I
read about it. Turns out it's a lot more than just filling up tires, there are
different types. By the definition straight from the book, it is "the force per
unit area when the force acts perpendicular to a surface. The
perpendicular component of a force acting on a surface divided by the
area of the surface. P=F/A" (Ostdiek, 2018). In my own words, it's pretty
much any type of force acting on an area. I did mention there are different
kinds of pressure, it can come from a solid and fluid, then it can branch off
to different types of principles like Bernoulli's principle.
In the aviation world, we care about pressure in general, this is because
things like pressure altitude help us understand how our aircraft is
performing. This could be determining altitude or understanding our
airspeeds. Then you get things like the density of the atmosphere.
Here's a real example of why it's important to understand the concept of
"Pressure" I'm going to talk about the weather for a little but bear with
me. Have you ever been on final on a hot day and as you get closer to the
ground you hit pockets of turbulence where it can throw off airspeed and
altitude? I have, well turns out when you think about it in terms of
pressure, the air is classified as fluid because the air is made up of
different gasses. When the fluid gets hotter its atoms go crazy and want
to expand, when the molecules begin to expand they will have the
tendency to rise up. When the air rises up and hits an object that is the
force you feel when you go through a thermal. I know I put it in very
simple terms but it's a real-life thing that pilots should be aware off
because it will help them adjust and compensate for the forces hitting an
aircraft. Thermals will be more prevalent when you fly over objects like
buildings or mountainous landscapes because it forces the molecules to
rise higher affecting the forces you feel.
2
Aviation Weather. (n.d.).
Thermal Soaring
.
https://www.aviationweather.ws/095_Thermal_Soaring.php
References
Ostdiek, V., & Bord, D. (2018).
Inquiry into Physics.
(8th ed.) Cengage
Learning Inc.
Aviation Weather. (n.d.).
Thermal Soaring
.
https://www.aviationweather.ws/095_Thermal_Soaring.php
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