Overview:
We are developing a high-speed UAV (target speed 500 km/h) powered by a tandem Electric Ducted Fan (EDF) configuration. We need an experienced CFD engineer to simulate, analyze, and optimize the airflow within the duct, focusing on the interaction between two sequential rotor stages.
Project Scope:
Inlet & Duct Optimization: Design and simulate the intake geometry to ensure uniform airflow at high flight speeds.
Tandem Stage Interaction: Analyze how the wake and swirl from the first stage affect the performance of the second stage.
Stator Design: Optimize the stationary guide vanes (stators) between the stages to recover pressure and straighten the flow.
Performance Mapping: Calculate thrust, torque, and efficiency at various airspeeds (0 to 170 m/s) and RPMs.
Required Skills & Tools:
Software: Proven expertise in ANSYS Fluent / CFX, STAR-CCM+, or OpenFOAM. (SolidWorks Flow Simulation is acceptable only for preliminary drafts, high-fidelity CFD is required for final stages).
Techniques: Experience with Sliding Mesh (Transient), MRF, and advanced turbulence modeling (k-omega SST).
Domain: Deep understanding of turbomachinery, blade element theory, and high-subsonic aerodynamics.
Deliverables:
Detailed CFD report with velocity streamlines, pressure contours, and thrust/efficiency curves.
Optimized CAD geometry (STEP/IGES) for the duct and stator vanes.
Recommendations for motor synchronization (RPM offsets) for maximum efficiency.
We will provide 3D models of EDF.
Contract duration of 1 to 3 months. with 30 hours per week.
Mandatory skills: CFD Analysis, Computational Fluid Dynamics, Finite Element Analysis, ANSYS