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  2. Inlet cone - Wikipedia

    en.wikipedia.org/wiki/Inlet_cone

    An inlet cone, as part of an Oswatitsch-type inlet used on a supersonic aircraft or missile, is the 3D-surface on which supersonic ram compression for a gas turbine engine or ramjet combustor takes place through oblique shock waves. Slowing the air to low supersonic speeds using a cone minimizes loss in total pressure (increases pressure recovery).

  3. Blast wave - Wikipedia

    en.wikipedia.org/wiki/Blast_wave

    Blast waves cause damage by a combination of the significant compression of the air in front of the wave (forming a shock front) and the subsequent wind that follows. [15] A blast wave travels faster than the speed of sound, and the passage of the shock wave usually lasts only a few milliseconds. Like other types of explosions, a blast wave can ...

  4. Ludwieg tube - Wikipedia

    en.wikipedia.org/wiki/Ludwieg_tube

    Ludwieg tube installation with a dump tank (left), nozzle and test section (center) and expansion tube (right) A Ludwieg tube is a cheap and efficient way of producing supersonic flow. Mach numbers up to 4 in air are easily obtained without any additional heating of the flow. With heating, Mach numbers of up to 11 can be reached.

  5. Shock tube - Wikipedia

    en.wikipedia.org/wiki/Shock_tube

    More recently, laboratory scale shock tubes driven by fuel-air mixtures have been developed that produce realistic blast waves and can be operated in more ordinary laboratory facilities. [8] Because the molar volume of gas is much less, the jet effect is a fraction of that for compressed-gas driven shock tubes.

  6. Shock wave - Wikipedia

    en.wikipedia.org/wiki/Shock_wave

    In this case, the gas ahead of the shock is stationary (in the laboratory frame) and the gas behind the shock can be supersonic in the laboratory frame. The shock propagates with a wavefront which is normal (at right angles) to the direction of flow. The speed of the shock is a function of the original pressure ratio between the two bodies of gas.

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  8. The Moccamaster is the Cadillac of coffee makers — and it's ...

    www.aol.com/lifestyle/the-moccamaster-is-the...

    Many of the Amazon shoppers note that the Moccamaster is well worth the splurge if you can spot it on sale. They note that if it dips below $250, it becomes a must-buy. Today, ahead of Black ...

  9. Drag-reducing aerospike - Wikipedia

    en.wikipedia.org/wiki/Drag-reducing_aerospike

    A drag-reducing aerospike is a device (see nose cone design) used to reduce the forebody pressure aerodynamic drag of blunt bodies at supersonic speeds. The aerospike creates a detached shock ahead of the body. Between the shock and the forebody a zone of recirculating flow occurs which acts like a more streamlined forebody profile, reducing ...

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