Optimizing Aerodynamics for the Quarkus P3 Pikes Peak with LS-DYNA and DEP MeshWorks
2024 International LS-DYNA Conference, Metro Detroit, Michigan, USA - N. Van Dorsselaer, M. Le Garrec, V. Lapoujade (Dynas+)

Abstract
The study of external aerodynamics is a cornerstone of vehicle development, particularly in the context of energy efficiency and high-performance racing. This publication highlights the use of LS-DYNA’s ICFD solver and DEP MeshWorks for optimizing the aerodynamics of the Quarkus P3 Pikes Peak Version. With simulations performed across multiple altitudes and speeds, the study explores methodologies for reducing drag, increasing downforce, and improving airflow to enhance engine performance under extreme race conditions.

Key Insights from the Study
- Objective: Optimize the Quarkus P3 for the demanding Pikes Peak race, balancing drag reduction and downforce improvement.
- Challenges Addressed:
- High altitudes impacting aerodynamic performance.
- The need for efficient airflow to the engine and enhanced stability in sharp turns.
- Technological Advantages:
- DEP MeshWorks enabled rapid design changes and mesh modifications.
- LS-DYNA’s ICFD solver facilitated accurate simulations across varying conditions.
- Results:
- Increased downforce by 134% with only a 19% increase in drag.
- Improved airflow to the engine by 10% with minimal drag impact.
- Up to 4% improvement in front downforce with optimized splitter length.

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Advanced Aerodynamic Optimization Techniques
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Simulation Workflow:
- DEP MeshWorks used for meshing the vehicle’s complex geometry.
- LS-DYNA’s ICFD solver applied to simulate airflow and aerodynamic forces.
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Design Iterations:
- Modifications tested: rear spoiler size, front splitter length, air intake scoops, and bodywork internal flows.
- Sensitivity studies performed on splitter length, drag/lift ratios, and engine air intake performance.

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Innovating for Racing and Beyond
The Quarkus P3 Pikes Peak Version exemplifies how DEP MeshWorks and LS-DYNA drive innovation in high-performance vehicle design. These tools are not only pivotal for racing applications but also extend to energy-efficient vehicle development in commercial contexts.
This study underscores the power of LS-DYNA’s ICFD solver and DEP MeshWorks for tackling complex aerodynamic challenges. By leveraging these advanced tools, the Quarkus P3 achieved remarkable aerodynamic improvements, ensuring performance and safety for the Pikes Peak race.
As Dynas+ and Quarkus continue their collaboration, future innovations will integrate additional fluid-structure interactions and enhanced design methodologies to push the boundaries of performance further.

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