Accession Number:

AD0747772

Title:

Quasi Area Rule for Heat Addition in Transonic and Supersonic Flight Regimes

Descriptive Note:

Final technical rept. 1 Oct 1970-31 Aug 1971

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

• Fuhs, Allen E.

Report Date:

1972-08-01

Pagination or Media Count:

155.0

Abstract:

Body shapes, including axisymmetric and three dimensional, have been developed to minimize wave drag. The von Karman ogive and the area rule are examples. Similar work has not been accomplished for optimum shapes with propulsion. Propulsion can be divided into two categories--those devices with internal heat addition and those with external burning. For internal heat addition an analytical model is formulated which introduces the propulsive disc. Attention is shifted to external burning, which is examined for one dimensional and two dimensional linearized flow. Heat fronts and combustion fans are discussed as examples. Forces on a heat source in a uniform stream and adjacent to bodies are derived.

Descriptors:

• *DRAG
• *AIRFRAMES
• *AIRCRAFT ENGINES
• THERMAL ANALYSIS
• TURBOJET EXHAUST NOZZLES
• PLUG NOZZLES
• SUPERSONIC COMBUSTION RAMJET ENGINES
• FLAT PLATE MODELS
• REDUCTION
• NOZZLE AREA RATIO
• OPTIMIZATION

Subject Categories:

• Aerodynamics
• Fluid Mechanics
• Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE