Micro Air Vehicle

UNIVERSITY OF SHEFFIELD • M.SC. AEROSPACE ENGINEERING

Micro Air Vehicle
Aerodynamic Design & Optimisation

Aerodynamics • XFOIL • MATLAB • Aircraft Performance Analysis

Project Description

This MSc project investigated the aerodynamic design of a fixed-wing Micro Air Vehicle (MAV) using analytical calculations, MATLAB and XFOIL. The objective was to optimise the wing configuration by evaluating aspect ratio, airfoil performance, lift-to-drag ratio and thrust requirements before selecting the final design.

Project Snapshot

MATLAB

Automated aerodynamic calculations and performance analysis.

XFOIL

Evaluated aerodynamic characteristics of candidate airfoils.

AR Optimisation

Compared multiple aspect ratios to minimise induced drag.

NACA 2412

Selected as the optimum airfoil for the final wing design.

My Role

I worked on:

  • Developed MATLAB scripts to automate aerodynamic calculations and performance analysis.
  • Used XFOIL to evaluate the aerodynamic characteristics of multiple NACA airfoils.
  • Compared aspect ratios to minimise induced drag and improve aerodynamic efficiency.
  • Selected the optimum wing configuration based on lift-to-drag ratio, drag coefficient and thrust requirements.

Aspect Ratio Optimisation

Different aspect ratios were evaluated to investigate their influence on induced drag. The study identified the optimum configuration by balancing aerodynamic efficiency and practical wing geometry.

Induced Drag vs Aspect Ratio

Airfoil Selection

Seven NACA airfoils were evaluated using XFOIL to compare their aerodynamic performance. Drag polars and lift-to-drag characteristics were assessed to identify the most suitable airfoil for the final Micro Air Vehicle wing.

Drag Polar

Drag Polar Comparison

Airfoil Comparison

Airfoil Performance Comparison

XFOIL Aerodynamic Analysis

The selected airfoil was analysed in XFOIL to investigate its aerodynamic behaviour over a range of angles of attack. Lift and drag characteristics were used to assess aerodynamic performance before the final wing design was selected.

Lift Curve

Lift Coefficient vs Angle of Attack

Drag Curve

Drag Coefficient vs Angle of Attack

MATLAB Performance Analysis

MATLAB was used to automate the aerodynamic calculations and evaluate the thrust required for steady level flight. The results supported the final wing configuration by confirming that the selected design satisfied the required performance criteria.

Required Thrust Analysis

Engineering Skills

MATLAB

Numerical calculations and performance analysis.

XFOIL

Airfoil aerodynamic analysis and comparison.

Aerodynamics

Airfoil selection and wing optimisation.

Engineering Analysis

Performance evaluation and engineering decision making.

Conclusion

The study successfully identified an optimum wing configuration through systematic aerodynamic analysis using MATLAB and XFOIL. By evaluating aspect ratio, airfoil performance and thrust requirements, the final design achieved an efficient balance between aerodynamic performance and practical design constraints, demonstrating a structured engineering approach to Micro Air Vehicle wing optimisation.