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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
Objectives -Â
Objectives -Â
- Describe three factors important to the performance of a CO2-powered rocket car
- Calculate the area of a solid’s planar face
- Calculate the volume of a solid, and, when given the density, calculate the mass
- Create a new assembly
- Insert components
- Add mating relationships between components.
- Use Additive Manufacturing to build it and make it ready for racing.
Rail Car
Rail Car
Designing of Basic Parts
Designing of Basic Parts
Basic Blank
Basic Blank
Designing CO2 Cartridge
Designing CO2 Cartridge
Designing Thin Tires for Front of Car
Designing Thin Tires for Front of Car
Designing Fat Tires for Back of Car
Designing Fat Tires for Back of Car
Designing Body
Designing Body
Cutting Blank to form basic body shape
Cutting Blank to form basic body shape
Designing Cockpit
Designing Cockpit
Designing Front Wheel Well
Designing Front Wheel Well
Final Body
Final Body
Final Rail Car Assembly
Final Rail Car Assembly
Final Assembly
Final Assembly
Engineering Drawing of Final Assembly
Flow Simulation Comparison
Flow Simulation Comparison
Thin + Thick Tires
Thin + Thick Tires
Only Thin Tires
Only Thin Tires
Surface Mapping
Surface Mapping
Drag and Lift Data
Drag and Lift Data
Arrows Flow SimÂ
Arrows Flow SimÂ
Flow Sim Animation with Spheres
Flow Sim Animation with Spheres
Personal Car
Personal Car
Research and Thumbnail Sketches
Research and Thumbnail Sketches
Body Construction
Body Construction
Lofting the main body
Lofting the wings
Extruding the tail
Final body design
Assembling the Car
Assembling the Car
Front View
Back View
Isometric view of final assembly
Simulation One
Simulation One
Surface Plot Simulation
Flow Simulation
Data from the Flow Simulation
Slight Redesign
Slight Redesign
The guideline hole (beneath the car) and the edges of the wings were filleted to benefit the car aerodynamically
Ensuing data with slightly decreased numbers
Below is a comparison of the data from the first design and the redesign
Below is a comparison of the data from the first design and the redesign
Shows a very slight but meaningful improvement in drag
Shows a very slight but meaningful improvement in drag
Final Design Drawing and Flow Simulation
Final Design Drawing and Flow Simulation
Additive Manufacturing of JETCAR
Additive Manufacturing of JETCAR
Slicing the test print for the wings
Slicing the test print for the wings
The completed prints of the wings, the, smaller, horizontal stabilizers were to small and accordingly altered in the model
The completed prints of the wings, the, smaller, horizontal stabilizers were to small and accordingly altered in the model
Slicing the complete body
Slicing the complete body
Video displaying the layers of the print
Video displaying the layers of the print
Completed print of the JETCAR
Completed print of the JETCAR
Hydro Dipping The Car
Hydro Dipping The Car
Final Product
Final Product
Team car picture
Team car picture
Race Videos and Results
Race Videos and Results
Race 1 - 1.764 seconds
Race 1 - 1.764 seconds
20240227_091904_1.MP4IMG_9407.MOVIMG_5710.MOVIMG_6226.movRace 2 - 1.210 seconds
Race 2 - 1.210 seconds
20240228_090321_1.MP4IMG_6216.MOVIMG_6246.MOVIMG_1909.movOn this race the guidelines got crossed causing the car to run into the pole at the finish line destroying the nose. (Somewhat seen in above video)
On this race the guidelines got crossed causing the car to run into the pole at the finish line destroying the nose. (Somewhat seen in above video)
I was able to reattach the nose with super glue making it race ready for day three
I was able to reattach the nose with super glue making it race ready for day three
Race 3 - 1.153 seconds
Race 3 - 1.153 seconds
IMG_6228.movIMG_9434.MOVIMG_2630.movEnded with the fastest car (of those that met the design requirements) in the class
Ended with the fastest car (of those that met the design requirements) in the class
Maximum Velocity Calculations
Maximum Velocity Calculations
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