Pressure Sensitive Paint

Pressure sensitive paint is an optical method to obtain the pressure on an object surface without instrumenting the object. The surface is coated with a paint containing luminophore molecules(florescent or…

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Dye Injection

Dye can be used to mark and visualize particular regions of flow or individual fluid streamlines. To mark streamlines adjacent to a test body, dye is injected from small ports…

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LDV – Laser Doppler Velocimetry

Laser Doppler Velocimetery (LDV) is a technique used to measure the instantaneous velocity of a flow field. This technique, like PIV is non-intrusive and can measure all the three velocity…

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Visualization Techniques in a Wind Tunnel

The needs of aircraft designers and aerodynamicists have begun to grow at a pace that requires changes in equipment and techniques used by those that produce aerodynamic data for the…

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FLOW VISUALIZATION TECHNIQUE

Pressure Sensitive Paint on C-5 Galaxy Model Flow visualization is concerned with a study of fluid flow near the surface of objects or test specimens. The technique is commonly used…

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smoke and tuft grid technique

Aerodynamicists use wind tunnels to test models of proposed aircraft and engine components. During a test, the model is placed in the test section of the tunnel and air is made to flow past the model.…

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Wind Tunnel Instrumentation System

Fig 2 Tunnel wind speed control Block Diagram

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Store Separation

Store separation testing is vital before a new store (such as a missile or a fuel tank) can be used in service on an aircraft. These tests are used to ensure…

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Intake Performance

The intakes of the vehicle (i.e. aircraft, cruise missile etc) deliver the air to the engines. It is important that the air flowing into any engine is well behaved so…

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Hypersonic impulse facilities

Impulse Test Facilities Shock Tube Diaphragm-less Shock Tube Combustion Driven Shock Tube

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