AE2353 WIND TUNNEL TECHNIQUES L T P C
3 0 0 3
OBJECTIVE
To introduce the basic concepts of measurement of forces and moments on models during the wind tunnel testing.
UNIT I WIND TUNNELS 10
Classification –non-dimensional numbers-types of similarities - Layout of open circuit and closed circuit subsonic wind tunnels – design parameters-energy ratio - HP calculations. Calibration.
UNIT II HIGH SPEED WIND TUNNELS 10
Blow down, in draft and induction tunnel layouts and their design features, Transonic, supersonic and hypersonic tunnels, their peculiarities and calibration. Helium and gun tunnels, Shock tubes,
UNIT III WIND TUNNEL MEASUREMENTS 12
Pressure,velocity and temperature measurements – Force measurements – types of balances-Three component and six component balances – calibration of measuring instruments.
UNIT IV FLOW VISUALIZATION 6
Smoke and Tuft grid techniques – Dye injection special techniques – Optical methods of flow visualization.
UNIT V NON-INTRUSIVE FLOW DIAGNOSTICS 7
Laser – Doppler anemometry. Particle image velocimetry. Laser induced fluorescence.
TOTAL: 45 PERIODS
TEXT BOOK
1. Rae, W.H. and Pope, A. “Low Speed Wind Tunnel Testing”, John Wiley Publication, 1984.
REFERENCE
1. Pope, A., and Goin, L., “High Speed wind Tunnel Testing”, John Wiley, 1985.
3 0 0 3
OBJECTIVE
To introduce the basic concepts of measurement of forces and moments on models during the wind tunnel testing.
UNIT I WIND TUNNELS 10
Classification –non-dimensional numbers-types of similarities - Layout of open circuit and closed circuit subsonic wind tunnels – design parameters-energy ratio - HP calculations. Calibration.
UNIT II HIGH SPEED WIND TUNNELS 10
Blow down, in draft and induction tunnel layouts and their design features, Transonic, supersonic and hypersonic tunnels, their peculiarities and calibration. Helium and gun tunnels, Shock tubes,
UNIT III WIND TUNNEL MEASUREMENTS 12
Pressure,velocity and temperature measurements – Force measurements – types of balances-Three component and six component balances – calibration of measuring instruments.
UNIT IV FLOW VISUALIZATION 6
Smoke and Tuft grid techniques – Dye injection special techniques – Optical methods of flow visualization.
UNIT V NON-INTRUSIVE FLOW DIAGNOSTICS 7
Laser – Doppler anemometry. Particle image velocimetry. Laser induced fluorescence.
TOTAL: 45 PERIODS
TEXT BOOK
1. Rae, W.H. and Pope, A. “Low Speed Wind Tunnel Testing”, John Wiley Publication, 1984.
REFERENCE
1. Pope, A., and Goin, L., “High Speed wind Tunnel Testing”, John Wiley, 1985.
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