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Investigation at Supersonic Speeds of Some of the Factors Affecting the Flow Over a Rectangular Wing With Symmetrical Circular-Arc Section and 30-Percent-Chord Trailing-Edge Flap
Report presenting an investigation at supersonic speeds of some of the factors affecting the flow over a rectangular wing with a symmetrical circular-arc section and a 30-percent-chord trailing-edge flap. The main purpose is to obtain more information on which to base the design of supersonic controls. Results regarding the effect of Mach number, effect of wing thickness, effect of fixing transition, effect of sealing the hinge gap, effect of model surface condition and asymmetry, and shock boundary-layer interaction are provided.
Date:
January 2, 1951
Creator:
Czarnecki, K. R. & Mueller, James N.
System:
The UNT Digital Library
Flame velocities of propane- and ethylene-oxygen-nitrogen mixtures
Report presenting the laminar flame velocities of propane and ethylene with various oxygen-nitrogen mixtures as determined from schileren photographs of Bunsen-type flames. Flame velocity was determined as a function of equivalence ratio for each oxygen-nitrogen mixture at two initial temperatures.
Date:
January 2, 1953
Creator:
Dugger, Gordon L. & Graab, Dorothy D.
System:
The UNT Digital Library
Prediction of flame velocities of hydrocarbon flames
Report presenting some laminar-flame-velocity data surveyed with respect to the correspondence between experimental flame velocities and values predicted by semitheoretical and empirical methods.
Date:
January 2, 1953
Creator:
Dugger, Gordon L. & Simon, Dorothy M.
System:
The UNT Digital Library
Preliminary Experiments with Pilot Burners for Ram-Jet Combustors
Memorandum presenting a preliminary development program on can-type pilot burners as part of an overall program to develop a high-altitude, low-drag ramjet combustor. Results regarding single-row circular pilot burners, six-row circular pilot burners, and annular-segment pilot burners are provided.
Date:
January 2, 1953
Creator:
Farley, John M.; Smith, Robert E. & Povolny, John H.
System:
The UNT Digital Library
A Low-Speed Investigation of the Magnus Effects on a Sting-Mounted Model of a Typical Mortar Shell
Memorandum presenting an investigation made in the stability tunnel with a 2.3-scale spinning model of a typical mortar shell. The tests were made to measure the aerodynamic forces and moments acting on a typical spinning mortar shell. Results regarding the basic configuration, effect of changes in tail configuration, effect of changes in the nose configuration, and comparison of mortar shell and antisubmarine rocket are provided.
Date:
January 2, 1957
Creator:
Lichtenstein, Jacob H.
System:
The UNT Digital Library
Wind-Tunnel Investigation of the Low-Speed Characteristics of a 1/8-Scale Model of the Republic XP-91 Airplane with a Vee and a Conventional Tail. Addendum - Characteristics with a Revised Conventional Tail and Drooped Wing Tips
"Additional wind-tunnel tests were made of a 1/8-scale model of the Republic XP-91 airplane to determine its characteristics with various modifications. The modifications included a revised conventional tail, revised rocket arrangement, drooped wing tips, and revised landing gear and doors. Tests were also made to determine the effectiveness of the control surfaces of the model with the conventional tail and the effect of changing wing incidence and tail length. The revised rocket arrangement provided a considerable increase in the static directional stability contributed by the vee tail at small angles of yaw" (p. 1).
Date:
January 2, 1958
Creator:
Weiberg, James A. & Anderson, Warren E.
System:
The UNT Digital Library