Vortex dynamics in supersonic mixing flows
Maddalena, Luca Aerodynamics Research Center, Department of Mechanical and Aerospace Engineering, University of Texas at Arlington, Arlington, Texas.
Vergine, Fabrizio Aerodynamics Research Center, Department of Mechanical and Aerospace Engineering, University of Texas at Arlington, Arlington, Texas.
- Reduced-order model
- Simulations, experiments, and comparisons
- Links to Primary Literature
The effectiveness of supersonic combustion is crucial for the development of air-breathing hypersonic vehicles. The current effort is to transition from technological demonstrators (that is, the X-43A or the X-51 WaveRider) that are small-scale flight vehicles [4.5 kg/s (10 lb/s) or less of airflow] to larger engine sizes (45 kg/s or 100 lb/s), with the final goal of reaching full-scale, hypersonic air-breathing-based vehicle technology. This technology would be a “game changer” for commercial hypersonic flight and affordable reusable space transportation systems. Decades of studies have been devoted to the understanding of the fundamental physics of the combustion processes in supersonic combustion ramjet (scramjet) engines. However, many complications still arise in the design of practical scramjet combustors. Among these is the achievement of efficient fuel-air mixing in the extremely short residence times of the supersonic flow in the engine (typically milliseconds). Enhanced mixing and rapid combustion imply an increase in combustion efficiency and a reduction of the combustor length, thus reducing the skin-friction drag and increasing the net thrust. For cycle efficiency purposes, the process must also induce low total pressure losses. See also: Hypersonic flight; Hypersonic vehicles; Scramjet
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. Its dedicated editorial team is led by Sagan Award winner John Rennie. Contributors include more than 9000 highly qualified scientists and 42 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 17,000 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