Filton Low Speed Wind Tunnel
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Filton Low Speed Wind Tunnel . Lecture Overview. Why do we need low speed wind tunnel testing Wind tunnel technology Instrumentation overview Expected daily tasks Individual projects Conclusions Questions and answers. Why Low Speed W ind T unnel T esting is Needed.

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Filton Low Speed Wind Tunnel

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Filton low speed wind tunnel

Filton Low Speed Wind Tunnel


Filton low speed wind tunnel

Lecture Overview

  • Why do we need low speed wind tunnel testing

  • Wind tunnel technology

  • Instrumentation overview

  • Expected daily tasks

  • Individual projects

  • Conclusions

  • Questions and answers


Filton low speed wind tunnel

Why Low Speed Wind Tunnel Testing is Needed

  • Take of and landing

  • Refuelling of aircraft in the air

  • Testing ground effects


Filton low speed wind tunnel

Wind Tunnel technology 2


Filton low speed wind tunnel

Wind Tunnel technology 3


Filton low speed wind tunnel

Wind Tunnel technology 4


Filton low speed wind tunnel

Wind Tunnel technology 4

  • Details

  • Date built 1955

  • MAX.SPEED 97 m/s, 318 f/s, 218 m.p.h, 188 knots. (0.28 MACH No.) (EMPTY TUNNEL)

  • 6 - components, electro-mechanical, virtual centre under floor Balance

  • Fluorescent, Ultra Violet and Photo-floods

  • Used for tests on Concorde


Filton low speed wind tunnel

Wind Tunnel Instrumentation

  • Analogue to digital conversion

    • Tail plain pressures

    • Wing pressures

    • Fuselage pressures

    • Modal Temperature

    • Incidence

    • Vibration

  • Control and automation

    • Pitch

    • Yaw

    • Needle valve control for HP air engine simulation


Filton low speed wind tunnel

Wind Tunnel Instrumentation

  • Hardware used

    • NI instrument DAQ modules

    • NI PXI Software

    • PIC Microcontroller

    • PSI8000 System

    • GE Druck pressure sensors

    • Custom Built LOLA Actuator

  • Software

    • Lab view

    • MP Lab IDE

    • C Compiler

    • C++ For tunnel specific applications


Filton low speed wind tunnel

Wind tunnel Responsibilities

  • Report writing for every wind tunnel modal

    • Modal Instrumentation Report

    • Facility Instrumentation Report

    • Operations Report

  • Wind tunnel electrical stock control

  • Wind tunnel instrumentation support

  • Modal configuration support

  • Support from Co workers

    • Good team spirit

    • Every one willing to help

    • Manufacturing team a little hard sometimes


Filton low speed wind tunnel

Individual Projects 1

  • Remote DVD Controller

    • PIC Microcontroller

    • RS232 communications

    • IR Interface

    • PWM Output

    • PCB component design and manufacturer

  • Modal position DAQ

    • PIC microcontroller

    • TCP/IP communication protocol

    • RS232 capability

    • 24 bit ADC implementation


Filton low speed wind tunnel

Individual Projects 2

  • Remote control for DC Motor

    • Analogue circuit principles

    • Unipolar switching circuit for two directions

    • Limit and safety circuit implementation

  • HP Air (Torbar) DAQ

    • PIC Microcontroller

    • 64 bit ADC via SPI

    • RS232 protocol

    • TCP/IP Protocol

    • Time crucial code expectation

    • Used to test IPEKA Counter rotating prop blades for aircraft


Filton low speed wind tunnel

Biggest Success

  • DAQ Instrumentation for use with real live projects

  • Worst Mistake

  • Destruction of actuator costing around £10,000


Filton low speed wind tunnel

Most usefull module

  • Digital Signal Processing-2nd year

  • Embedded systems -2nd year

  • Analogue circuit principles -1st year

  • Least useful module

  • Group project management


Filton low speed wind tunnel

Conclusions

  • Valuable experience in the work place

  • Practical experience to enhance the subjects

  • learnt at UWE

  • Real sense of being part of a team

  • Real team work experience

  • Pressure to meet deadlines

  • Gave me a real interest in Engineering as a whole

  • Return job possibilities


Filton low speed wind tunnel

Questions ??


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