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Videos search results: "Rayleigh"
 
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Title          
Standing Waves in Air Columns 
   
 
Abstract    

Standing Waves in Air Columns is demonstrated. Nodes and antinodes are excited by a tuning fork for pipes that are open-open and open-closed. A classic demonstration of the Rayleigh's Criteria (widely used in studying combustion stability in aircraft, rocket and gas turbine engines) is demonstrated using a heated wire gauze placed inside a pipe at a suitable location inside the tube. This is called the Rijke Tube experiment.

 
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Added By - reberg
Subject - Physics
Document Type - Demonstration
Video Duration - 00:09:58
 
 
 

 

Title          
Lamina Flow Stirling Engine 
   
 
Abstract    

This amazingly simple engine runs at 700rpm heated only by a small candle.

Thermoacoustic hot air engines (Sonic heat pump and refrigeration or thermoacoustic heat pump and refrigeration) of which nearly all are thermoacoustic stirling engines is a technology that uses high-amplitude sound waves in a pressurized gas to pump heat from one place to another - or uses a heat temperature difference to induce sound, which can be converted to electricity with high efficiency, with a (piezoelectric) loudspeaker.

This type of heat pump or refrigerator has no

 
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Added By - quantum
Subject - Energy
Document Type - Demonstration
Video Duration - 00:01:00
 
 
 

 

Title          
Cavitation in zero-g (Shockwave-Nuclei) 
   
 
Abstract    

Hydrodynamic cavitation inside a freefloating water drop produced in microgravity. (Credits: ESA, Danail Obreschkow, Philippe Kobel, Nicolas Dorsaz, Aurèle de Bosset, Mohamed Farhat).

http://en.wikipedia.org/wiki/Cavitation

Cavitation is a general term used to describe the behavior of voids or bubbles in a liquid. Cavitation is usually divided into two classes of behavior: inertial (or transient) cavitation and non-inertial cavitation. Inertial cavitation is the process where a void or bubble in a liquid rapidly collapses, producing a shock wave. Such cavitation often occurs in pumps, propellers, impellers, and in the vascular tissues of plants. Non-inertial cavitation is the process where a bubble in a fluid is forced to oscillate in size or shape due to some form of energy input, such as an acoustic field. Such cavitation is often employed in ultrasonic cleaning baths and can also be observed in pumps...

 
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Added By - matlabuser
Subject - Aeronautics and Astronautics
Document Type - Experiments
Video Duration - 00:00:38
 
 
 

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