CFD Online Logo CFD Online URL
Home > CFD News and Announcements > Message Display

CFD News and Announcements - Message DisplayCFD-Wiki

Post Response | Return to Index | Read Prev Msg | Read Next Msg

Fluid Dynamics Investigation of the Sonic Boom on a Supersonic Aircraft Concept

Posted By: Anne-Marie Schelkens
Date:Mon, 3 Aug 2020, 8:48 a.m.

supersonic aircraft sonic boom simulation


The return to supersonic flight is amongst the hottest topics in aviation today, as several companies (Boom Supersonic and Aerion, 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.

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 Response

Your Name:
Your Email Address:
If you'd like to include a link to another page with your message,
please provide both the URL address and the title of the page:
Optional Link URL:
Optional Link Title:
If you'd like to include an image (picture) with your message,
please provide the URL address of the image file:
Optional Image URL:
If you'd like email notification of responses, please check this box:
Post Response | Return to Index | Read Prev Msg | Read Next Msg
Go to top Go to top