Project 42 Acoustical Model of Mach Cut-off Flight

Details

• Alternative Title:
  Sensitivity Analysis of Acoustical Model for Mach Cut-off Flight
• Creators:
  Sparrow, Victor W. ; Bailey, Michael ; Mavris, Dimitri N. ; Page, Juliet A. ; Vigeant, Michelle C. ; Tai, Jimmy ; Busch, Greg ; Huang, Zhendong ; Ortega, Nick ; Duca, Ruxandra ; Mohan, Ratheesvar
• Corporate Creators:
  Georgia Tech Research Corporation ; Pennsylvania State University ; University of Washington ; John A. Volpe National Transportation Systems Center (U.S.)
• Corporate Contributors:
  United States. Department of Transportation. Federal Aviation Administration. Center of Excellence for Alternative Jet Fuels and Environment ; United States. Department of Transportation. Federal Aviation Administration. Office of Environment and Energy
• Subject/TRT Terms:
  Acoustics Aircraft Noise ASCENT Aviation Mach Number Supersonic Aircraft
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. Federal Aviation Administration. Center of Excellence for Alternative Jet Fuels and Environment
• Abstract:
  Georgia Tech has completed the research plan for this task. Georgia Tech has also acquired both the source code and executable for PCBoom 6.7. PCBoom 6.7 was used to perform the sensitivity analysis on the acoustical model provided by Aerion, Volpe, and Penn State University. Georgia Tech completed the initial benchmarking study for the sensitivity of Mach cut-off flight on a standard sonic boom signature (F-18 geometry provided with the executable). Georgia Tech assessed the sensitivity of the resultant ground boom strength and shape of the F-18 model with variations in atmospheric temperature and humidity as well as various flight Mach numbers. A tool to help facilitate the execution of task 4, the PCBoom wrapper, was developed and utilized. The Aerion AS2 model was successfully incorporated into the study, and the sensitivity of the model was assessed for both Mach cut-on and Mach cut-off conditions. The sensitivity study was performed and completed for various temperatures, winds, and relative humidity in both standard atmospheric profiles and realistic atmospheric profiles. The results of the study were compiled and presented in this report. Task 5 was completed through extensive research into various technologies that could help enable Mach cut-off flight. Insight on many of the technologies was solicited from scientists and researcher in the atmospheric sciences. The most promising technologies were investigated further, and a summary of those technologies is presented in this report.
• Format:
  PDF
• Funding:
  13-C-AJFE-GIT-023
• Collection(s):
  Federal Aviation Administration
• Main Document Checksum:
  urn:sha-512:f7f762827679ebe065d74a241abdce4541150e520a83fd5eadf8b805caf862c8a3041a6b310d31b4e318b668924c4c48966731cd7a6aa1c72888bca2dba29f98
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/89730/dot_89730_DS1.pdf
• File Type:
  [PDF - 4.03 MB ]