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Questions tagged [aerospace-engineering]

Aerospace engineering is the primary branch of engineering concerned with the research, design, development, construction, and testing of aircraft and spacecraft.

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0 answers
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Improving a poorly designed project. Seed dispersal using a BLDC Turbine

I would like to get ideas on how a project of this sort can be improved. The Project A simple sphere of diameter 130mm that is split horizontally by a wall. The wall does not equally divide the sphere,...
user avatar
0 votes
5 answers
834 views

Why did the Mythbuster's dimple car get better fuel economy?

I'm trying to understand why the Mythbuster's dimple car gets better fuel economy - if it actually would as I'm not I understand that a golf ball functions by creating turbulent air flow and via the ...
Grant Curell's user avatar
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0 answers
49 views

F-1 rocket engine - gas generator data

I’m doing some research on Rocketdyne F-1 engine of Saturn V. In particular I am searching geometric data of the gas generator that feeds the turbo pump. Has someone found this kind of data? It seems ...
daniele__'s user avatar
1 vote
0 answers
45 views

How often is discrete-time control used in industry?

Although in reality I know that computers handle all systems in discrete time, in my limited industry work experience I've only used continuous-time control system analysis/standard frequency domain ...
jgholder's user avatar
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How to use a high current 2 Second current pulse to actuate a servo - First year Electrical Engineer

I am using a dual deployment system controller, an Eggtimer Quark REVC2 which at apogee outputs a high current 2 second pulse. I don't have time to buy a more advanced Eggtimer which outputs proper ...
Engineerin.com's user avatar
2 votes
1 answer
75 views

Does MEMS/Optical Gyroscope record Earth's Rotational and revolutional angular velocities

I am using a 3 axis gyroscope (Android device) to record angular velocities using a sensor data logger application. When the device is placed stationary, the gyroscope recorded the following values: ...
Akash Sagar's user avatar
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0 answers
78 views

Calculating the doppler shift between a satellite receiver and ground station transmitter with python

I'm trying to write a python script calculate the doppler shift that occurs between a satellite receiver and ground station transmitter. Below are the examples that I've been following . What I don't ...
gabriel92's user avatar
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0 answers
37 views

Location of Reaction wheels in a cubesat

In a pyramid 4 reaction wheel configuration, where would you want to place the reaction wheels. I know that you would want them closer to the center of mass. If you were to place them in a CubeSat for ...
sneh patel's user avatar
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0 answers
84 views

Investigation of Body Motion in SolidWorks: Euler Angles Rate or Angular Velocity?

This is my first question in this community. I decided to demonstrate my problem on simple rigid body, but task may be applied to more complex shapes. So, a cube is built in SolidWorks: Using the ...
ayr's user avatar
  • 226
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1 answer
30 views

Saturation of penetration length using Lucas-Washburn equation

The Washburn equation for capillary flow provides the following expression for the calculation of the penetration depth (or capillary rise): $L \propto \sqrt(t)$ My question is when t goes to infinity,...
Mechanician's user avatar
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2 answers
297 views

How to theoretically determine the flow rate for a fan design?

I am trying to design a ducted axial fan. The fan will be pulling air through a filter, and ejecting out into the atmosphere (For a CO2 direct air capture application). However I want to start with ...
Prismatic_compass's user avatar
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0 answers
111 views

Why are stress intensity units MPa√m

The units of stress intensity are usually taken as MPa√m. Cracks are usually measured in (mm), could someone please explain why this convention is used an not consistent SI units
aerobic's user avatar
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0 answers
20 views

How Does The Aerodynamics Of This Hanging Rotating Wing VAWT Turbine Function?

We are examining videos of this very fast rotating "hanging VAWT" shown on Youtube: https://youtu.be/O2MZsK0mvBk https://youtu.be/7hVQ_rVNRUI It say in the text description that "...
Ahmad Al-Masri's user avatar
1 vote
1 answer
284 views

What is the approximate horsepower/kW output of a cyclist riding a bike at near ~300km/h?

In 2018, a female cyclist set the outdoors record for fastest cycling clocking in at almost 300km/h. (https://en.m.wikipedia.org/wiki/Denise_Mueller-Korenek), and I am curious to know the approximate ...
Raiden Snaker's user avatar
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2 answers
390 views

How to calculate missile's radius of turn?

I want to make a simple simulator game and in this game there is a missile that must hit something. The problem is, I can't find the equation to calculate its radius of turn. The game is a simulator ...
Curious guy's user avatar

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