The document describes the specifications and components of a small-scale subsonic wind tunnel. It includes details about the test section measurements, total length, components like the contraction cone, test section, and diffuser. It can measure wind speeds up to 0.2 Mach and lift and drag forces. The wind tunnel allows testing of aerodynamic properties of objects and has applications in designing vehicles, drones, airfoils and more. It provides an educational opportunity for students to learn about engineering challenges.

1. Small-Scale
Subsonic
Wind Tunnel
Technical
Specifications
Structure
Breakdown
Wind speeds of up to 0.2 Mach (68m/s) in the test section
Lift and Drag forces measurement system
Test Section measurements - 28cm x 28cm x 45cm
Total Length of the wind tunnel - 4.5meters
1 -Contraction Cone
2 - Test Section
3 - Diffuser
4 - Axial Fan (Suction)
5 - Distribution Board and VFD
1 3
5
2 4
DAQ and Analysis
Force Measurement System Fan Speed Control
Data Acquisition Flow
Simulation
Distribution Board
About Wind
Tunnels
Wind tunnels are devices used to test the aerodynamic properties of
objects. Everything that interacts with air and needs to be designed
with a streamlined flow in mind can be tested in a wind tunnel. The
applications are endless. Cars, drone propellers, plane aerofoils,
athletic wear and even buildings can be designed and tested with the
help of a wind tunnel. It was a great learning opportunity for the
team and the challenges faced helped the members understand real
life engineering.
Manufacturing Process
Finished Product
Bilal Sharqi Sadiya Siddique Usama Shah
Sarkhail Khan Varsha Behrunani Rahul Lakhi
Pressure Analysis Velocity Analysis
Cutting Welding Grinding Bending
Stress Analysis
for Contraction Cone
Flow Simulation
for NACA 0012 Aerofoil
Stress Analysis
for Diffuser
Pressure, Velocity and CFD Simulations
The project has great scope for the future. It can be used to
study aerodynamic theories and real life applications of
drag forces. It can be used as an educational tool to
demonstrate mechanical principles, as a device to study
control systems and DAQs. It is a sustainable project for any
educational institution as future students can add and
improve upon the existing model.