CFD Review  
Serving the CFD Community with News, Articles, and Discussion
 
CFD Review

User Preferences
Site Sponsorship
Headline Feeds
Mobile Edition
Privacy Policy
Terms of Service
twitter

Submit a CFD Story

Site Sponsors
The Choice for CFD Meshing
Azore CFD
CFD Review

Tell a Friend
Help this site to grow by sending a friend an invitation to visit this site.

CFD News by Email
Did you know that you can get today's CFD Review headlines mailed to your inbox? Just log in and select Email Headlines Each Night on your User Preferences page.

 
Fluid Dynamics Investigation of the Sonic Boom on a Supersonic Aircraft Concept
Posted Mon August 03, 2020 @10:01AM
Print version Email story Tweet story
Application The return to supersonic flight is amongst the hottest topics in aviation today, as several companies (Boom Supersonic and Aerion Supersonic, among others) are actively developing new supersonic commercial airliners targeted to enter in service in the coming years. In this context, a quiet flight over land is one of the major challenges to ensure the regulatory compliance of such airliners. Several research centers and companies are building demonstrators to show large sonic boom reductions with smarter designs of all the parts of the aircraft.

Sponsor CFD Review

The nature of the sonic boom is associated with shockwaves that are longitudinal waves generated by an object that travels faster than the speed of sound. Such shockwaves caused by large supersonic aircraft, are perceived by people on the ground as a sound similar to an explosion or thunder.

Exposure to aircraft noise is known to be linked to health issues, such as disturbance of sleep, developmental delays in children, obesity, and cardiovascular problems. The International Council on Clean Transportation report published in 2019 warns that a network of 2,000 supersonic aircraft linking 500 city-city pairs would potentially create sonic booms as frequently as once per five minutes in some regions. In view of an imminent return to commercial supersonic flight, the issue of supersonic aircraft noise is back in the spotlight of the industry and research community.

Recent research proves that it is possible to mitigate the sonic boom issue via a careful shaping of the vehicle geometry. The idea behind the low-boom supersonic aircraft concepts is the minimization of the amplitude of longitudinal sound waves also called N-waves.

The use of CFD in the field of supersonic aeronautics significantly cuts the time to market and associated development costs. Sonic Boom Prediction Workshops organized by NASA aim at assessment of the sonic boom prediction methods reliability. The near-field pressure signatures prediction with CFD is perhaps its key component. Every subsequent workshop features cases with lower noise signatures, thus bringing new challenges for CFD codes. NUMECA is active in this field and was involved in the CFD investigation of a sonic boom and aerodynamic prediction of NASA Concept 25D Powered supersonic aircraft developed in the framework of recent research work.

Read all about this case HERE

[ Post Comment ]

Turbulence Model Influence on Flow in the FDA Benchmark Model | Azore Software Launches CFD Simulation Software  >

 

 
CFD Review Login
User name:

Password:

Create an Account

Related Links
  • Aerion Supersonic
  • Boom Supersonic
  • HERE
  • International Council on Clean Transportation
  • NASA
  • Numeca
  • Sonic Boom Prediction Workshops
  • More on Application
  • 'Fluid Dynamics Investigation of the Sonic Boom on a Supersonic Aircraft Concept' | Login/Create an Account | Search Discussion

    The following comments are owned by whoever posted them.
    We are not responsible for them in any way.

    Your best consolation is the hope that the things you failed to get weren't really worth having. All content except comments
    ©2022, Viable Computing.

    [ home | submit story | search | polls | faq | preferences | privacy | terms of service | rss  ]