论文信息 - Interference between exhaust system and afterbody of twin-engine fuselage configurations

Interference between exhaust system and afterbody of twin-engine fuselage configurations

Some of the mutual aircraft afterbody and engine nozzle interferences that can exist on aircraft complex aft-ends and on simplified twin-jet afterbodies are reviewed. Emphasis is placed on studies of twin-engine fuselage configurations with nozzles installed near the terminus of the afterbody where the interactions of the nozzle exhausts and external stream produce a complex flow-field environment. The magnitude of the aft-end problem for real aircraft configurations is illustrated, and some theoretical and empirical considerations of afterbody drag on simple bodies are treated. Many of the factors regarding airframe-installation effects on nozzle performance are discussed, as well as nozzle-installation effects on aircraft performance.

J. F. Runckel

[1] D. Bergman. Implementing the design of airplane engine exhaust systems , 1972 .

[2] F. H. Wood,et al. Effect of jet velocity and axial location of nozzle exit on the performance of a twin-jet afterbody model at Mach numbers up to 2.2 , 1969 .

[3] Blake W. Corson,et al. Summary of research on jet-exit installations , 1966 .

[4] E. Glasgow,et al. Aft-end design criteria and performance prediction methods applicable to air superiority fighters having twin buried engines and dual nozzles , 1972 .

[5] J. Hess,et al. Calculation of potential flow about arbitrary bodies , 1967 .

[6] M. R. Nichols,et al. Aerodynamics of airframe-engine integration of supersonic aircraft , 1966 .

[7] D. R. Ferguson,et al. Analytical method for predicting the pressure distribution about a nacelle at transonic speeds , 1973 .

[8] J. F. Runckel. Jet-exit and airframe interference studies on twin-engine-fuselage aircraft installations , 1966 .