mirror of
https://github.com/ArthurIdema/Zoekeend-Phrase-Indexing.git
synced 2025-10-26 16:24:21 +00:00
12 KiB
12 KiB
| 1 | 1 | what similarity laws must be obeyed when constructing aeroelastic models of heated high speed aircraft . |
|---|---|---|
| 2 | 2 | what are the structural and aeroelastic problems associated with flight of high speed aircraft . |
| 3 | 3 | what problems of heat conduction in composite slabs have been solved so far . |
| 4 | 4 | can a criterion be developed to show empirically the validity of flow solutions for chemically reacting gas mixtures based on the simplifying assumption of instantaneous local chemical equilibrium . |
| 5 | 5 | what chemical kinetic system is applicable to hypersonic aerodynamic problems . |
| 6 | 6 | what theoretical and experimental guides do we have as to turbulent couette flow behaviour . |
| 7 | 7 | is it possible to relate the available pressure distributions for an ogive forebody at zero angle of attack to the lower surface pressures of an equivalent ogive forebody at angle of attack . |
| 8 | 8 | what methods -dash exact or approximate -dash are presently available for predicting body pressures at angle of attack. |
| 9 | 9 | papers on internal /slip flow/ heat transfer studies . |
| 10 | 10 | are real-gas transport properties for air available over a wide range of enthalpies and densities . |
| 11 | 11 | is it possible to find an analytical, similar solution of the strong blast wave problem in the newtonian approximation . |
| 12 | 12 | how can the aerodynamic performance of channel flow ground effect machines be calculated . |
| 13 | 13 | what is the basic mechanism of the transonic aileron buzz . |
| 14 | 14 | papers on shock-sound wave interaction . |
| 15 | 15 | material properties of photoelastic materials . |
| 16 | 16 | can the transverse potential flow about a body of revolution be calculated efficiently by an electronic computer . |
| 17 | 17 | can the three-dimensional problem of a transverse potential flow about a body of revolution be reduced to a two-dimensional problem . |
| 18 | 18 | are experimental pressure distributions on bodies of revolution at angle of attack available . |
| 19 | 19 | does there exist a good basic treatment of the dynamics of re-entry combining consideration of realistic effects with relative simplicity of results . |
| 20 | 20 | has anyone formally determined the influence of joule heating, produced by the induced current, in magnetohydrodynamic free convection flows under general conditions . |
| 21 | 21 | why does the compressibility transformation fail to correlate the high speed data for helium and air . |
| 22 | 22 | did anyone else discover that the turbulent skin friction is not over sensitive to the nature of the variation of the viscosity with temperature . |
| 23 | 23 | what progress has been made in research on unsteady aerodynamics . |
| 24 | 24 | what are the factors which influence the time required to invert large structural matrices . |
| 25 | 25 | does a practical flow follow the theoretical concepts for the interaction between adjacent blade rows of a supersonic cascade . |
| 26 | 26 | what is a single approximate formula for the displacement thickness of a laminar boundary layer in compressible flow on a flat plate . |
| 27 | 27 | how is the design of ring or part ring wings by linear theory affected by thickness . |
| 28 | 28 | what application has the linear theory design of curved wings . |
| 29 | 29 | what is the effect of cross sectional shape on the flow over simple delta wings with sharp leading edges . |
| 30 | 30 | papers on flow visualization on slender conical wings . |
| 31 | 31 | what size of end plate can be safely used to simulate two-dimensional flow conditions over a bluff cylindrical body of finite aspect ratio . |
| 32 | 32 | to find an approximate correction for thickness in slender thin-wing theory . |
| 33 | 33 | how do interference-free longitudinal stability measurements (made using free-flight models) compare with similar measurements made in a low-blockage wind tunnel . |
| 34 | 34 | have wind tunnel interference effects been investigated on a systematic basis . |
| 35 | 35 | are there any papers dealing with acoustic wave propagation in reacting gases . |
| 36 | 36 | has anyone investigated relaxation effects on gaseous heat transfer to a suddenly heated wall . |
| 37 | 37 | are there any theoretical methods for predicting base pressure . |
| 38 | 38 | does transition in the hypersonic wake depend on body geometry and size |
| 39 | 39 | how can one detect transition phenomena in boundary layers . |
| 40 | 40 | how can one detect transition phenomena in hypersonic wakes . |
| 41 | 41 | has anyone investigated and developed a simple model for the vortex wake behind a cruciform wing . |
| 42 | 42 | what is a criterion that the transonic flow around an airfoil with a round leading edge be validly analyzed by the linearized transonic flow theory . |
| 43 | 43 | can the transonic flow around an arbitrary smooth thin airfoil be analysed in a simple approximate way . |
| 44 | 44 | what are the details of the rigorous kinetic theory of gases . (chapman-enskog theory) . |
| 45 | 45 | has anyone investigated the effect of surface mass transfer on hypersonic viscous interactions . |
| 46 | 46 | what is the combined effect of surface heat and mass transfer on hypersonic flow . |
| 47 | 47 | what are the existing solutions for hypersonic viscous interactions over an insulated flat plate . |
| 48 | 48 | what controls leading-edge attachment at transonic speeds . |
| 49 | 49 | can the three-point boundary-value problem for the blasius equation be integrated numerically, using suitable transformations, without iteration on the boundary conditions . |
| 50 | 50 | what are the effects of small amounts of gas rarefaction on the characteristics of the boundary layers on slender bodies of revolution . |
| 51 | 51 | what is the available information pertaining to boundary layers on very slender bodies of revolution in continuum flow (the ?transverse curvature effect) . |
| 52 | 52 | what is the available information pertaining to the effect of slight rarefaction on boundary layer flows (the ?slip? effect) . |
| 53 | 53 | what investigations have been made of the flow field about a body moving through a rarefied, partially ionized gas in the presence of a magnetic field . |
| 54 | 54 | how is the heat transfer downstream of the mass transfer region effected by mass transfer at the nose of a blunted cone . |
| 55 | 55 | to what extent can the available information for incompressible boundary layers be applied to problems involving compressible boundary layers . |
| 56 | 56 | to what extent can readily available steady-state aerodynamic data be utilized to predict lifting-surface flutter characteristics . |
| 57 | 57 | what are the significant steady and non-steady flow characteristics which affect the flutter mechanism . |
| 58 | 58 | is it possible to determine rates of forced convective heat transfer from heated cylinders of non-circular cross-section, (the fluid flow being along the generators) . |
| 59 | 59 | how much is known about boundary layer flows along non-circular cylinders . |
| 60 | 60 | is there any simple, but practical, method for numerical integration of the mixing problem (i.e. the blasius problem with three-point boundary conditions) . |
| 61 | 61 | does there exist a closed-form expression for the local heat transfer around a yawed cylinder . |
| 62 | 62 | how far around a cylinder and under what conditions of flow, if any, is the velocity just outside of the boundary layer a linear function of the distance around the cylinder . |
| 63 | 63 | where can i find pressure data on surfaces of swept cylinders . |
| 64 | 64 | can't the static deflection shapes be used in predicting flutter in place of vibrational shapes . if so, can we provide a justification by means of an example . |
| 65 | 65 | does the boundary layer on a flat plate in a shear flow induce a pressure gradient . |
| 66 | 66 | can the procedure of matching inner and outer solutions for a viscous flow problem be applied when the main stream is a shear flow . |
| 67 | 67 | can series expansions be found for the boundary layer on a flat plate in a shear flow . |
| 68 | 68 | what possible techniques are available for computing the injection distribution corresponding to an isothermal transpiration cooled hemisphere . |
| 69 | 69 | what is known regarding asymptotic solutions to the exact boundary layer equations . |
| 70 | 70 | previous solutions to the boundary layer similarity equations . |
| 71 | 71 | experimental results on hypersonic viscous interaction . |
| 72 | 72 | what has been done about viscous interactions in relatively low reynolds number flows, particularly at high mach numbers . |
| 73 | 73 | what role does the effect of chemical reaction (particularly when out of equilibrium) play in the similitude laws governing hypersonic flows over slender aerodynamic bodies . |
| 74 | 74 | how significant is the possible pressure of a dissociated free stream with respect to the realization of hypersonic simulation in high enthalpy wind tunnels . |
| 75 | 75 | do the discrepancies among current analyses of the vorticity effect on stagnation-point heat transfer result primarily from the differences in the viscosity-temperature law assumed . |
| 76 | 76 | how far can one trust the linear viscosity-temperature solution assumed in some of the analyses of hypersonic shock layer at low reynolds number . |
| 77 | 77 | how close is the comparison of the shock layer theory with existing experiments in the low reynolds number (merged-layer) regime . |
| 78 | 78 | has anyone explained the kink in the surge line of a multi-stage axial compressor . |
| 79 | 79 | have any aerodynamic derivatives been measured at hypersonic mach numbers and comparison been made with theoretical work . |
| 80 | 80 | are methods of measuring aerodynamic derivatives available which could be adopted for use in short running time facilities . |
| 81 | 81 | what are wind-tunnel corrections for a two-dimensional aerofoil mounted off-centre in a tunnel . |
| 82 | 82 | how do kuchemann's and multhopp's methods for calculating lift distributions on swept wings in subsonic flow compare with each other and with experiment . |
| 83 | 83 | what is the present state of the theory of quasi-conical flows . |
| 84 | 84 | references on the methods available for accurately estimating aerodynamic heat transfer to conical bodies for both laminar and turbulent flow . |
| 85 | 85 | what parameters can seriously influence natural transition from laminar to turbulent flow on a model in a wind tunnel . |
| 86 | 86 | can a satisfactory experimental technique be developed for measuring oscillatory derivatives on slender sting-mounted models in supersonic wind tunnels . |
| 87 | 87 | what effect has the boundary layer in modifying the basic inviscid flow behind the shock, neglecting effects of leading edge and corner . |
| 88 | 88 | how does a satellite orbit contract under the action of air drag in an atmosphere in which the scale height varies with altitude . |
| 89 | 89 | how is the flow at transonic speeds about a delta wing different from that on a closely-related tapered sweptback wing . |
| 90 | 90 | recent data on shock-induced boundary-layer separation . |
| 91 | 91 | what interference effects are likely at transonic speeds . |
| 92 | 92 | given complete freedom in the design of an airplane, what procedure would be used in order to minimize sonic boom intensity, and is there a limit to the degree of minimizing that can be accomplished . |
| 93 | 93 | can methane-air combustion product be used as a hypersonic test medium and predict, within experimental accuracies, the results obtained in air . |
| 94 | 94 | what is the theoretical heat transfer rate at the stagnation point of a blunt body . |
| 95 | 95 | what is the theoretical heat transfer distribution around a hemisphere . |
| 96 | 96 | has anyone investigated the unsteady lift distributions on finite wings in subsonic flow . |
| 97 | 97 | what information is available for dynamic response of airplanes to gusts or blasts in the subsonic regime . |
| 98 | 98 | will forward or apex located controls be effective at low subsonic speeds and how do they compare with conventional trailing-edge flaps . |
| 99 | 99 | given that an uncontrolled vehicle will tumble as it enters an atmosphere, is it possible to predict when and how it will stop tumbling and its subsequent motion . |
| 100 | 100 | what are the effects of initial imperfections on the elastic buckling of cylindrical shells under axial compression . |
| 101 | 101 | why does the incremental theory and the deformation theory of plastic stress-strain relationship differ greatly when applied to stability problems . |
| 102 | 102 | basic dynamic characteristics of structures continuous over many spans . |
| 103 | 103 | is the information on the buckling of sandwich sphere available . |
| 104 | 104 | can the load deformation characteristics of a beam be obtained with the material being inelastic and a non uniform temperature being present . |
| 105 | 105 | what is the effect of an internal liquid column on the breathing vibrations of a cylindrical shell . |
| 106 | 106 | experimental techniques in shell vibration . |
| 107 | 107 | in summarizing theoretical and experimental work on the behaviour of a typical aircraft structure in a noise environment is it possible to develop a design procedure . |
| 108 | 108 | what data is there on the fatigue of structures under acoustic loading . |
| 109 | 109 | panels subjected to aerodynamic heating . |
| 110 | 110 | can increasing the edge loading of a plate beyond the critical value for buckling change the buckling mode . |
| 111 | 111 | have the effects of an elastic edge restraint been considered in previous papers on panel flutter . |
| 112 | 112 | has the solution of the clamped plate problem, in the classical theory of bending, been reduced to two successive membrane boundary value problems . |