Design and fabrication requirements for low noise supersonic/hypersonic wind tunnels [PDF]
A schematic diagram of the new proposed Supersonic Low Disturbance Tunnel (SLDT) is shown. Large width two dimensional rapid expansion nozzles guarantee wide quiet test cores that are well suited for testing models at large angle of attack and for swept ...
Beckwith, Ivan E. +2 more
core +1 more source
Solid rocket booster internal flow analysis by highly accurate adaptive computational methods [PDF]
The primary objective of this project was to develop an adaptive finite element flow solver for simulating internal flows in the solid rocket booster. Described here is a unique flow simulator code for analyzing highly complex flow phenomena in the solid
Bass, J. M. +5 more
core +1 more source
Comparison of experimental surface pressures with theoretical predictions on twin two-dimensional convergent-divergent nozzles [PDF]
A three-dimensional subsonic aerodynamic panel code (VSAERO) was used to predict the effects of upper and lower external nozzle flap geometry on the external afterbody/nozzle pressure coefficient distributions and external nozzle drag of nonaxisymmetric ...
Burley, J. R., II +2 more
core +1 more source
Static internal performance of ventral and rear nozzle concepts for short-takeoff and vertical-landing aircraft [PDF]
The internal performance of two exhaust system concepts applicable to single-engine short-take-off and vertical-landing tactical fighter configurations was investigated.
Carson, George T., Jr., Re, Richard J.
core +1 more source
Acoustic interactions between an altitude test facility and jet engine plumes: Theory and experiments [PDF]
The overall objective of the described effort was to develop an understanding of the physical mechanisms involved in the flow/acoustic interactions experienced in full-scale altitude engine test facilities. This is done by conducting subscale experiments
Ahuja, K. K. +4 more
core +1 more source
Performance of twin two-dimensional wedge nozzles including thrust vectoring and reversing effects at speeds up to Mach 2.20 [PDF]
Transonic tunnel and supersonic pressure tunnel tests were reformed to determine the performance characteristics of twin nonaxisymmetric or two-dimensional nozzles with fixed shrouds and variable-geometry wedges.
Capone, F. J., Maiden, D. L.
core +1 more source
Multiaxis thrust vectoring using axisymmetric nozzles and postexit vanes on an F/A-18 configuration vehicle [PDF]
A ground-based investigation was conducted on an operational system of multiaxis thrust vectoring using postexit vanes around an axisymmetric nozzle.
Bowers, Albion H. +4 more
core +1 more source
A study of nozzle and ejector flow problems by the method of integral relations [PDF]
The application of the method of integral relations to nozzle and ejector flow problems was examined. For nozzle flow problems, the general formulation is that the approaching flow may be rotational.
Chow, W. L., Howlett, L. D.
core +1 more source
Multiple-scale turbulence modeling of boundary layer flows for scramjet applications [PDF]
As part of an investigation into the application of turbulence models to the computation of flows in advanced scramjet combustors, the multiple-scale turbulence model was applied to a variety of flowfield predictions.
Edelman, R. B. +2 more
core +1 more source
Mechanistic Investigation of Microdroplet Formation in High-Viscosity Shear-Thinning Hydrogel Bioinks. [PDF]
GelsGao Q +6 more
europepmc +1 more source