Theory and application of an edge gradient system for generating optical transfer functions
Edge gradient analysis for measuring optical transfer functions
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Edge gradient analysis for measuring optical transfer functions
Quantitative determination of optical imperfection by mathematical analysis of Foucault knife edge test pattern in large orbiting telescope
Stress intensity factor and shape of edge crack in plate under tension
FORTRAN 4 computer program for design of sharp-edged-throat supersonic nozzles with boundary layer correction
Leading edge shock impingement and interaction heating on scale model straight wing orbiter
Wind tunnel static longitudinal stability and control characteristics of cruciform delta winged missile with various horizontal canards and trailing-edge flap control between Mach 1.50 and 4.63
Aerodynamic characteristics of twin jet, swept wing fighter aircraft model with leading edge Kreuger flaps at subsonic speeds
Disordered materials electronic structure band states localization, examining mobility edges
Maximum stagnation temperature on swept wing leading edge for equilibrium glide entry of space shuttle
Single edge notch tension Al alloy specimens mechanical compliance measurement, solving stress functions for various gage length-sample width combinations
Vortex breakdown on slender sharp edged and modified delta wings with varying sweep angles investigated in wind tunnel using schlieren system for flow visualization
Performance prediction of fixed wing leading edges radiative, ablative and active cooling thermal protection systems and system weights comparison for space shuttle entry mission
Blue edge of RR Lyrae instability strip, examining convection, radiation and surface boundary conditions effects
Edge cracked metal sheet elastoplastic strain distribution determination, using optical interference, moire technique and plane stress model finite element method
Peak resonant response of thin rectangular plate with elastic edge restraint under concentrated load
Crack shapes and stress intensity factors for deep edge crack in plate under tension or bending
Pitot-pressure profiles and surface pressure measurements have been obtained at four axial stations along the center lines of space shuttle straight-wing and delta-wing orbiters at angles of attack from 20 deg to approximately 60 deg and Mach numbers of 20.3 (helium) and 6.8 (air). The results show that the Mach number at the edge of the boundary layer is best predicted by tangent-cone theory up to shock detachment.
A theoretical analysis and a computer program have been developed for the prediction of unsteady lifting surface loadings caused by motions of trailing edge control surfaces having sealed gaps. The final form of the downwash integral equation has been formulated by isolating the singularities from the non-singular terms and establishing a preferred solution process to remove and evaluate the downwash discontinuities in a systematic manner. Comparisons of theoretical and experimental pressure data are made for several control surface configurations. The comparisons indicate that reasonably accurate theoretical pressure distributions and generalized forces may be obtained for a wide variety of control surface configurations. Spanwise symmetry or antisymmetry of motion, and up to four control surfaces on each half span can be accommodated.