Euler Solution-Generated Database for a High-Speed Guided Projectile
Abstract
This investigation documents the generation of an inviscid aerodynamic database for a high-speed guided projectile. The database was generated using the Cart3D inviscid computational fluid dynamics solver. The characteristics of this database are primarily depicted in this report as surface plots showing a variety of perspectives with commentary providing additional insight and rationale for the shape and behavior of trends in the data. Fitting techniques were used for interpolation and, in rare cases, extrapolation to fill in a small percentage of anomalous data in the database. In addition to documenting the characteristics of the database, more insights and context for the roll dependent aerodynamics of this projectile are provided as complementary to previous reports on such subject matter. As expected, the inviscid database exhibited decreasing aerodynamic coefficient magnitude with increasing Mach number and increasing normal force coefficient and pitching moment coefficient with increasing total angle of attack. Sinusoidal roll reversal in rolling moment coefficient was also observed with increasing Mach number. Finally, comparisons of the inviscid database are plotted against more sophisticated methods of evaluating the aerodynamic performance to evaluate the accuracy of the database.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 2023
- Accession Number
- AD1207262
Entities
People
- Justin Paul
Organizations
- United States Army Research Laboratory