PRESENTED BY:

ALI BIN QAMAR (3564)

FAHAD JAVAID (3664)

NOMAN WAHEED (3677)

TALHA ALI (3775)

ADVISOR: ENGR.

NAJEEB JAFRI

SDP 1 - REQUIREMENT SPECIFICATION

LOW SPEED SUB SONIC WIND TUNNEL

• INTRODUCTION• PROBLEM ANALYSIS• ASSUMPTIONS• ADDITIONAL FEATURES• FUNCTIONALITY• LITERATURE REVIEW• ENVIRONMENTAL FACTORS• MINIMUM ACCEPTABLE STANDARDS• CONCLUSION

ROADMAP

INTRODUCTIONAIMWIND TUNNEL FOR OBSERVING MANEUVERS AND IMPACT OF RELATIVE AIR FLOW ON AN AIRFOIL.

OBJECTIVE• TO BUILD A WIND TUNNEL

• INDICATION OF DIFFERENT PROPERTIES • ASPECT RATIO CALCULATION

• SCALED DOWN AIRFOIL

• TO CHECK AERODYNAMIC PARAMETERS

PROBLEM ANALYSIS• KIET STUDENTS ARE FACING PROBLEMS • SPECIAL DEPARTMENT

• DESIGN AND STRUCTURE OF TUNNEL

• THE ACT OF AERODYNAMIC FORCES

• DIFFERENT DESIGNS HAVE DIFFERENT EFFECTS

• LIMITATIONS AS PER STRUCTURE

ASSUMPTIONS

• FLUID FLOW IS LAMINAR

• FLUID MASS FLOW IS CONSTANT

• CONSTANT DENSITY OF FLUID SEA LEVEL

• CONSTANT PRESSURE DIFFUSER SECTION

• CONSTANT TEMPERATURE

ADDITIONAL FEATURES

• VARIOUS DIGITAL DISPLAYS

• DIRECT CALIBRATION OF SPEED TO M/S

• DIFFERENT SYSTEM OF UNITS

• ROBUST MODEL

• COMPATIBILITY TO CONVERT INTO CLOSE LOOP

ENVIRONMENTAL FACTORS

• WORK SPACE OBSTRUCTION FREE

• OUTSIDE PRESSURE CONSTANT

• TEMPERATURE VARIATION IS LESS

POWER SUPPLY

REGULATOR

BLOWER(RPM)

HONEY COMB

AOA CONTROL MECHANISM

MOTOR

CONTROLLER

ACTUATOR

FEEDBACKERROR

PRESSURE MEASUREME

NT

AIRSPEED MEASUREME

NT

OUTLET

BLOCK DIAGRAM

FUNCTIONALITY

LITERATURE REVIEW

PIC Atmel 8051

Cost Moderate Cheap

Programing language Assembly,C and VB

Assembly,C and VB

Built-in module ADC, USB, UARTPWM None

Market Availability Easily Available Easily Available

Simulator Proteus Proteus

LITERATURE REVIEW

Stepper Servo

Driving circuit for accuracy Needs additional circuitry Not required

Noise Often Rare

Speed Slow Fast

Load capacity Can lift medium load Can lift high load

Additional circuitry Needs for closed loop Built in feedback circuit

cost Cheap Expensive

Selected Motor : Servo

MINIMUM ACCEPTABLE STANDARD

•  VARIABLE AOA MEASUREMENTS

• PRESSURE MEASUREMENT • AIRSPEED MEASUREMENTS • DIGITAL DISPLAY

• OUTPUT UP TO 70% TO 80%

• ATTITUDE CHANGE DISPLAY • RAF REGULATION • AOA CALCULATION • HELP FOR LEARNERS

CONCLUSION

QUERIES/SUGGESTIONS