Results 151 to 160 of about 405 (198)

Sonic Boom Prediction Using Euler / Full Potential Methodology

45th AIAA Aerospace Sciences Meeting and Exhibit, 2007
Sonic Booms of two different bodies, a double cone configuration and a modified F5E aircraft are predicted using Euler solvers for the near field, and a Full Potential Propagation method for the far field. Shock fitting and grid adaptation are used to enhance accuracy of computations.
Isik Ozcer, Isik Ali Ozcer
openaire   +2 more sources

Comparison of Low-boom Predictions from Different Sonic Boom Propagation Codes

, 2020
International audienceA comparison of sonic boom propagation codes from NASA and ONERA was conducted using low-boom test cases from the 3rd AIAA Sonic Boom Prediction Workshop.
Loubeau, Alexandra, Carrier, Gérald, Malbéqui, Patrice, Rallabhandi, Sriram, Lonzaga, Joel   +4 more
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Prediction of sonic boom at a focus

14th Aerospace Sciences Meeting, 1976
The behavior of sonic boom at a focus has been reviewed for the purpose of extending present sonic boom computational methods to include focal zones. The geometry of a focal zone - whether a smooth caustic, a cusped caustic, or a perfect focus to a point - determines the character of focused signatures.
K. PLOTKIN, J. CANTRIL
openaire   +1 more source

Development of a Library for Far-Field Sonic Boom Prediction in OpenFOAM

Lecture Notes in Computer Science
Andrey Epikhin
exaly   +2 more sources

Near-Field Sonic-Boom Prediction and Analysis with Hybrid Grid Navier–Stokes Solver

Journal of Aircraft, 2018
A high-fidelity prediction of near-field sonic-boom signature is performed. Three benchmark cases (including an axisymmetric body, a simple delta wing–body, and a complete low-boom supersonic transport configuration) and the Lockheed Martin 1021 (LM1021)
Boping Ma, Gecheng Zha
exaly   +2 more sources

Sonic Boom Structural Damage Prediction

The Journal of the Acoustical Society of America, 1974
A technique has been developed for predicting the probability of sonic boom structural damage. This technique utilizes the probability density functions (pdf's) of the sonic boom induced stress and the material strength. Analysis of the data from experiments performed at Oklahoma City, White Sands, and Edwards Air Force Base has shown the stresses ...
Robert Hershey, Thomas Higgins
openaire   +1 more source

Review of Sonic Boom Generation Theory and Prediction Methods

The Journal of the Acoustical Society of America, 1971
Within the past two decades the combined contributions of scientists and engineers in this country and abroad have resulted in development of systematic and reliable methods for the prediction of sonic-boom phenomena. The prediction techniques reviewed in the present paper permit the calculation of sonic booms produced by rather complex conventional ...
H. W. Carlson, D. J. Maglieri
openaire   +1 more source

Validation of launch vehicle sonic boom predictions

The Journal of the Acoustical Society of America, 1996
Concern has been raised about the sonic boom levels generated by launch vehicle operations. To address this concern the USAF recently monitored the sonic boom generated by the launch of a Titan IV rocket and the reaction of the local wildlife. The sonic boom generated by this launch intersected the Channel Islands off the coast of Southern California ...
J. Micah Downing, Kenneth Plotkin
openaire   +1 more source

Accurate Prediction of Sonic Boom Signals

12th AIAA/CEAS Aeroacoustics Conference (27th AIAA Aeroacoustics Conference), 2006
The development of a new sonic boom prediction methodology is discussed. By solving Burgers’ equation, the new method is able to accurately predict the thickness of the shock waves in a boom signal, resulting in a smoothly varying, continuous signal. The resultant signal allows for spectral analysis and the calculation of sonic boom noise metrics.
openaire   +1 more source

Summary and progress made in modeling of sonic boom propagation during AIAA sonic boom prediction workshops

The Journal of the Acoustical Society of America, 2017
This paper summarizes the atmospheric propagation modeling portion of the Second American Institute of Aeronautics and Astronautics (AIAA) Sonic Boom Prediction Workshop held in 2017 as well as an informal propagation comparison and benchmarking effort conducted prior to the First AIAA Sonic Boom Prediction Workshop in 2014. The motivation behind these
Sriram Rallabhandi, Alexandra Loubeau
openaire   +1 more source