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However, for specific configurations such as focused booms and booms near the carpet cut-off, studies (Coulouvrat, 2002; Rend on and Coulouvrat, 2005) have shown that ground absorption.

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Am. 149, A74-A75 (2021) https://doi.org/10.1121/10.0004561 Split-Screen Share Tools The Institute of Air Transportation Systems in Hamburg, Germany, researches methodologies for optimized supersonic flight routing that prevents the (primary) sonic boom from reaching the ground. The sonic boom shall either be cut off vertically or laterally.

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NASA's Quesst (Quiet SuperSonic Technology) mission teams are designing and building the X-59 supersonic aircraft—an advanced low-boom flight demonstrator that will be used to test the noise created by future supersonic transport designs.

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These are defined by estimated carpet width, which is the area where shockwaves from the supersonic boom can reach the ground. While this area would be dependent on aircraft altitude and speed, we.

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This paper describes a robust low-boom design in a primary boom carpet for a 50-seat twinjet supersonic airliner. For a reduction of front boom loudness, a design method that enables low-boom design considering off-design conditions such as off-design Mach numbers and off-track sonic boom loudness.

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Theory and modeling of sonic boom propagation (1) Flight faster than Mach 1 produces shock waves propagating at the speed of sound On the way down, shock waves are gradually bent upward due to rising temperatures Shock waves reach ground only inside a "sonic boom carpet" of certain width Sound-bending governed by Snell's law, similar to light pa.

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The idea, Shin said, is that people in this "boom carpet" area may hear a bit of rumbling in the background, but not a disruptive boom. After NASA develops the concept vehicle, the plan is to.

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A sonic boom is a sound associated with shock waves created when an object travels through the air faster than the speed of sound. Sonic booms generate enormous amounts of sound energy, sounding similar to an explosion or a thunderclap to the human ear.

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in the figure is within the sonic boom carpet, while the bottom pressure signature is most likely in the shadow zone. It can be seen that pressure signatures within the sonic boom carpet are traditional N-waves, but with increasing distance laterally beyond the sonic boom carpet, they attenuate in amplitude while increasing in length. Figure 4.

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The boom is generated continuously as long as the aircraft is supersonic. A narrow path on the ground is generated along the flight path of the aircraft, known as " boom carpet ." How Large Can.

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Sonic Boom Carpet Computation as a Basis for Supersonic Flight Routing. B. Liebhardt. Published in AIAA Aviation Forum 17 June 2019. Engineering, Computer Science. AIAA Aviation 2019 Forum. TLDR. The goal is to transform the sharp signature of pressure change, the so-called N-wave, into a more benign form with slower pressure rise, which has.

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The goal of this study is to investigate the variation in sonic boom carpet created by a commercial supersonic transport (SST) during steady, level flight due to different meteorological and flight conditions. Having a clear understanding of SST en-route noise is important for the re-introduction of civil supersonic flight because of the impact.

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In this study, sonic boom loudness is evaluated in a primary boom carpet, while the focus boom is not considered. Two geometries having different robustness with respect to loudness distribution in a primary boom carpet are designed. One is designed considering only a cruise Mach number, and sonic boom loudness is reduced at both under-track.

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October 4, 2016 NASA Photo / Ken Ulbrich Engineers and researchers at NASA's Armstrong Flight Research Center monitored the flights, and were able to observe the mapping of the sonic boom carpet from the F-18, from the center's Mission Control Center.

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