Embedded Files
Automotive aerodynamics is the study of the aerodynamics of road vehicles. Its main goals are reducing drag and wind noise, minimizing noise emission, and preventing undesired lift forces and other causes of aerodynamic instability at high speeds. Air is also considered a fluid in this case. For some classes of racing vehicles, it may also be important to produce downforce to improve traction. In this challenge, you will not only learn about how build and design a race car but will also realize how the design the surface of a car can help minimize drag and improve its motion through the air for better performance.
CO2 Car Assembly
CO2 Car Assembly
Drawing
Drawing
Assembly
Assembly
Thin Wheels (Flow Simulation)
Thin Wheels (Flow Simulation)
Both Wheels (Flow Simulation)
Both Wheels (Flow Simulation)
Thin Wheels (ALL)
Thin Wheels (ALL)
Flow Simulation (Side View)
Flow Simulation (Side View)
(LIFT)
(LIFT)
(DRAG)
(DRAG)
Flow Simulation (Thin/Thick GIF)
Flow Simulation (Thin/Thick GIF)
Flow Simulation (Side View)
Flow Simulation (Side View)
(LIFT)
(LIFT)
(DRAG)
(DRAG)
Construction (CO2 Car Body rail)
Construction (CO2 Car Body rail)
Bottom Cut
Bottom Cut
Cartridge Hole
Cartridge Hole
Fillets
Fillets
Rear Fender
Rear Fender
Axle Holes
Axle Holes
Cut extrude
Cut extrude
Loft
Loft
Front Wheel
Front Wheel
-Main components of constructed CO2 RAILCAR #1
-Main components of constructed CO2 RAILCAR #1
Wheel Assembly (Front/Back)
Wheel Assembly (Front/Back)
Front Wheel Assembly (carousel)
Front Wheel Assembly (carousel)
Back Wheel Assembly (carousel)
Back Wheel Assembly (carousel)
Cartridge
Cartridge
-Cartridge Final
-Cartridge Final
CO2 CAR FINAL (DRAWING)
CO2 CAR FINAL (DRAWING)
AUTOMOTIVE
AUTOMOTIVE
AERODYNAMICS
AERODYNAMICS
Colum #1: First Design
Colum #1: First Design
Colum #2: Final Design
Colum #2: Final Design
First design (SIDE VIEW)
First design (SIDE VIEW)
First Design (ORTHOGRAPHIC)
First Design (ORTHOGRAPHIC)
Final design (ORTHOGRAPHIC)
Final design (ORTHOGRAPHIC)
Final design (SIDE VIEW)
Final design (SIDE VIEW)
Data (FIRST DESIGN)
Data (FIRST DESIGN)
Data (FINAL DESIGN)
Data (FINAL DESIGN)
(LIFT)
(LIFT)
(DRAG)
(DRAG)
(LIFT)
(LIFT)
(DRAG)
(DRAG)
(LIFT)
(LIFT)
(DRAG)
(DRAG)
(LIFT/DRAG)
(LIFT/DRAG)
I managed to improve the drag during my re-design but the lift went up on my car due to changing the length and modifying the shape. Overall change:
FIRST DESIGN: FINAL DESIGN:
DRAG-0.99645 DRAG- 0.77053
LIFT-0.20950 LIFT-0.33095
-Race Day-
-Race Day-
Finished Co2 Race Car
Finished Co2 Race Car
Orthographic view
Top view
Rear view
Side view
This is my final design of my Co2 car. I had this design in mind during most of the brainstorming process, but its been slowly changed and modified along the way. Some of my main features include the holes in the back for proper airflow (Rear), the fender protecting the back thick wheel from dirty air/turbulence (Side), and my top view showing the structure of my body as well as the slim middle causing the car to be light and fast. My speed managed to improve each race I participated in with race #1 at 1.716 seconds, race #2 at 1.625, and the third and final race finishing at 1.462. By Calculating all these races we get an average overall speed of 1.601.
RACE #1: 2/27/24
RACE #2: 2/28/24
RACE #3: 2/29/24
Wheels Used: Combo (Slim/Thick)
Race #1 Jack Thompson vs. Nate Shaklee
Race #1 Jack Thompson vs. Nate Shaklee
Jacks time: 1.875
Jacks time: 1.875
Race #1 GIF
Race attempt #1: Jack Thompsons car is located on the right while mine is on the left. During the first attempt Jacks car launched and I mistakenly forgot to turn off the safety.
My time: 1.716
My time: 1.716
Race #1 GIF
Race attempt #2: After correctly setting my car I was able to launch my car are record my time. I ended up with a time of 1.716 making me the winner by 0.159 seconds.
Race #2
Race #2
Time: 1.625
Time: 1.625
Race #3
Race #3
Time: 1.462
Time: 1.462
Time Sped up GIF
Time Sped up GIF
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