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 and thus cornering abilities.Â
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 and thus cornering abilities.Â
CO2 Rail Car Research - Blank
Construction of the Extruded Cut Features
GIF of completed Blank Part
CO2 Rail Car Research - Body
Construction of the Lofted Boss Feature (Cockpit)
Construction of the Extruded Boss Feature (Rear Fender)
Construction of the Extruded Boss Feature (Front Wheel Standoff)
Construction of the Variable Fillets (Aerodynamics)
GIF of completed Body Rail Part
CO2 Rail Car Research - Front Rim Lx
Construction of the Revolved Base Feature
Construction of the first Extruded Cut Circular Pattern
Construction of the second Extruded Boss Circular Pattern
Construction of the 4 Fillets on the edges of the Rim
GIF of completed Front Rim Part
CO2 Rail Car Research - Front Tire
Construction of the Revolved Base Feature
GIF of completed Front Tire Part
CO2 Rail Car Research - Rear Rim Px
Construction of the Revolved Base FeatureÂ
Construction of the first Extruded Cut Circular Pattern
Construction of the second Extruded Boss Circular Pattern
Construction of the Fillets on the edges of the Rim
GIF of completed Rear Rim Part
CO2 Rail Car Research - Rear Tire
Construction of the Revolved Base Feature
Construction of the Text Sketch and Extruded Boss Features
GIF of completed Rear Tire Part
CO2 Rail Car Research - Cartridge
Construction of the Revolved Base Feature
Construction of the Chamfer Feature
GIF of completed Cartridge Part
CO2 Rail Car Research - Assembly
GIF of completed Body Rail Assembly with all previous Parts
CO2 Rail Car Research - Drawing
Drawing of Right, Top, Back, and Isometric views
CO2 Rail Car Research - Flow Sim
Arrow Trajectory Animation (Fat Rear Tires)
 Arrow Trajectory Animation (Skinny Rear Tires)
Sphere Trajectory Animation (Fat Rear Tires)
Sphere Trajectory Animation (Skinny Rear Tires)
Surface Plot (Fat Rear Tires)
Surface Plot (Skinny Rear Tires)
Lift and Drag Data (Fat Rear Tires)
Lift and Drag Data (Skinny Rear Tires)
Drag Chart (Fat Rear Tires)
Drag Chart (Skinny Rear Tires)
Lift Chart (Fat Rear Tires)
Lift Chart (Skinny Rear Tires)
CO2 Rail Car Project - Thumbnail Drawings
CO2 Rail Car Project - Body Design
Construction of the Extruded Base Feature
Construction of the first Extruded Cut Feature
Construction of the second Extruded Cut Feature
Construction of the first Extruded Boss Feature
Construction of the second Extruded Boss Feature
Construction of the Main Body Fillets
Construction of the Outer Body Fillets
Construction of the Guideline using Extruded Boss and Cut Features
GIF of completed Body Part
CO2 Rail Car Project - Assembly
GIF of the completed CO2 Car Assembly
CO2 Rail Car Project - Drawing
Drawing of Right, Top, Back, and Isometric Views
CO2 Rail Car Project - Flow Sim
Arrow Trajectory Animation (Initial Design)
Arrow Trajectory Animation (Improved Design)
Sphere Trajectory Animation (Initial Design)
Sphere Trajectory Animation (Improved Design)
Surface Plot (Initial Design)
Surface Plot (Improved Design)
Drag Chart (Initial Design)
Drag Chart (Improved Design)
Lift Chart (Initial Design)
Lift Chart (Improved Design)
Drag and Lift Data (Initial Design)
Drag and Lift Data (Improved Design)
CO2 Rail Car Project - Test Prints
Isolating the problematic features of the car to test print
Test print of the problematic features in PrusaSlicer
Successful test print
CO2 Rail Car Project - Final Print
View of the full car before slicing
Final print of the car with supports in PrusaSlicer
Successful final print
CO2 Rail Car Project - Race Day 1
Finished car with axles, tires, and cartridge inserted
IMG_4905.MOVLine-drive view from the back of the starting pad
IMG_5724.MOVView of the car approaching the finish line;
obtaining visible air-time and flipping
Race 1 Statistics:
Time (60 ft. track) - 1.384 seconds
Average Speed - 29.56 MPH
Maximum Velocity - 43.43 MPH
Class Standing - 1st
CO2 Rail Car Project - Race Day 2
IMG_4911.MOVLine-drive view from the back of the starting pad
20240228_092352_1.MP4Side view of the car passing the halfway point;
bumping and going airborne along track
Race 2 Statistics:
Time (60 ft. track) - 1.306 seconds
Average Speed - 31.32 MPH
Maximum Velocity - 45.31 MPH
Improvement (from Race 1) - 5.64%
Class Standing - 2nd
CO2 Rail Car Project - Race Day 3
IMG_2634.movView of the car approaching the finish line
IMG_4397.MOVSide view of the car passing the halfway point
Race 3 Statistics:
Time (60 ft. track) - 1.232 seconds
Average Speed - 33.21 MPH
Maximum Velocity - 47.24 MPH
Improvement (from Race 1) - 10.98%
Class Standing - 3rd
CO2 Rail Car Project - Racing Calculations
Average Speed and Percentage Improvement calculations
Maximum Velocity calculations
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