Blunt-Body Wave Drag Reduction Using Focused Energy Deposition

Author

David W. Riggins, Missouri University of Science and TechnologyFollow
Harlan F. Nelson, Missouri University of Science and TechnologyFollow
E. Johnson

Abstract

A parametric computational study of energy deposition upstream of generic two-dimensional and axisymmetric blunt bodies at Mach numbers of 6.5 and 10 is performed utilizing a full Navier-Stokes computational fluid dynamics code. The energy deposition modifies the upstream shock structure and results in large wave drag reduction and very high power effectiveness. Specifically, drag is reduced to values as low as 30% of baseline drag (no energy deposited into flow) and power effectiveness ratios (ratio of thrust power saved to power deposited into the flow) of up to 33 are obtained. The fluid dynamic and thermodynamic bases of the observed drag reduction are examined.

Recommended Citation

D. W. Riggins et al., "Blunt-Body Wave Drag Reduction Using Focused Energy Deposition," AIAA Journal, American Institute of Aeronautics and Astronautics (AIAA), Jan 1999.

The definitive version is available at https://doi.org/10.2514/2.756

Department(s)

Mechanical and Aerospace Engineering

International Standard Serial Number (ISSN)

0001-1452

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1999 American Institute of Aeronautics and Astronautics (AIAA), All rights reserved.

Publication Date

01 Jan 1999