Focused sonic booms
Coulouvrat, François Institut Jean Le Rond d'Alembert, Centre National de La Recherche Scientifuque, Université Pierre et Marie Curie, Paris, France.
Marchiano, Régis Institut Jean Le Rond d'Alembert, Centre National de La Recherche Scientifuque, Université Pierre et Marie Curie, Paris, France.
Thomas, Jean-Louis Institut des NanoSciences de Paris, Centre National de la Recherche Scientifique, Université Pierre et Marie Curie, Paris, France.
- Boom formation by cruising aircraft
- Boom formation by accelerating aircraft
- Distinctive features of focused booms
- Solution of the governing equation
- Links to Primary Literature
- Additional Readings
A sonic boom is the loud impulsive sound produced by any object moving faster than the local sound speed. Human-made sonic booms have existed for a long time, due to cracking whips or artillery shells, but they were not recognized as such before World War I, when booms interfered with Ernest Esclangon's attempts to localize German guns by acoustical goniometry (direction finding). Then sonic booms quickly returned to obscurity until the birth of the “supersonic age” in 1947 when Charles Yeager broke the sound barrier on the aircraft Bell X-1. This event was followed by the design of supersonic fighters and the launch in the 1960s of civil supersonic projects (the B2707 in the United States, the Soviet TU144, and the British-French Concorde), at a time of cold war competition when the future of air travel was confidently forecast as supersonic. But high costs, increasing environmental concerns, surging oil prices, and the political turmoil of the 1970s contradicted optimistic anticipations. The Concorde alone achieved the dream of supersonic travel, but only for wealthy customers flying transatlantic. Indeed, the Federal Aviation Administration banned civil supersonic flight over U.S. territory in 1973 as a protection against undesirable booms (at that time, the Concorde's). This ban was also adopted by other countries.
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 9000 highly qualified scientists and 43 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information