Results 111 to 120 of about 74,712 (235)

Development of a computer program to obtain ordinates for NACA 4-digit, 4-digit modified, 5-digit, and 16 series airfoils [PDF]

open access: yes
A computer program developed to calculate the ordinates and surface slopes of any thickness, symmetrical or cambered NACA airfoil of the 4-digit, 4-digit modified, 5-digit, and 16-series airfoil families is presented.
Brooks, Cuyler W., Jr., Ladson, C. L.
core   +1 more source

Energy efficient engine: Low-pressure turbine subsonic cascade component development and integration program [PDF]

open access: yes
A subsonic cascade test program was conducted to provide technical data for optimizing the blade and vane airfoil designs for the Energy Efficient Engine Low-Pressure Turbine component. The program consisted of three parts.
Knudsen, L. K.   +3 more
core   +1 more source

A compressible solution of the Navier-Stokes equations for turbulent flow about an airfoil [PDF]

open access: yes
A compressible time dependent solution of the Navier-Stokes equations including a transition turbulence model is obtained for the isolated airfoil flow field problem. The equations are solved by a consistently split linearized block implicit scheme.
Gibeling, H. J., Shamroth, S. J.
core   +1 more source

NASA low- and medium-speed airfoil development [PDF]

open access: yes
The status of NASA low and medium speed airfoil research is discussed. Effects of airfoil thickness-chord ratios varying from 9 percent to 21 percent on the section characteristics for a design lift coefficient of 0.40 are presented for the initial low ...
Beasley, W. D.   +2 more
core   +1 more source

An analytic study of nonsteady two-phase laminar boundary layer around an airfoil [PDF]

open access: yes
Recently, NASA, FAA, and other organizations have focused their attention upon the possible effects of rain on airfoil performance. Rhode carried out early experiments and concluded that the rain impacting the aircraft increased the drag.
Hsu, Yu-Kao
core   +1 more source

Application of shock tubes to transonic airfoil testing at high Reynolds numbers [PDF]

open access: yes
Performance analysis of a gas-driven shock tube shows that transonic airfoil flows with chord Reynolds numbers of the order of 100 million can be produced, with limitations being imposed by the structural integrity of the facility or the model.
Chaney, M. J.   +3 more
core   +1 more source

High Reynolds number tests of a Douglas DLBA 032 airfoil in the Langley 0.3-meter transonic cryogenic tunnel [PDF]

open access: yes
A wind-tunnel investigation of a Douglas advanced-technology airfoil was conducted in the Langley 0.3-Meter Transonic Cryogenic Tunnel (0.3-m TCT). The temperature was varied from 227 K (409 R) to 100 K (180 R) at pressures ranging from about 159 kPa (1 ...
Bui, Minh H.   +4 more
core   +1 more source

Langley airfoil-research program [PDF]

open access: yes
An overview of past, present, and future airfoil research activities at the Langley Research Center is given. The immediate past and future occupy most of the discussion; however, past accomplishments and milestones going back to the early NACA years are
Bobbitt, P. J.
core   +1 more source

Experimental verification of a new laminar airfoil: A project for the graduate program in aeronautics [PDF]

open access: yes
Two reports on student activities to determine the properties of a new laminar airfoil which were delivered at a conference on soaring technology are presented.
Korkan, Kenneth D., Nicks, Oran W.
core   +1 more source

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