Engineering topics
Publications and source records attributed to Drischler, J. A..
High-lift wing concepts being considered for application to commercial STOL transports are discussed. The flow patterns which produce dynamic loads on these wings are indicated. Measurements of surface pressure and acceleration on a one-half-scale model of an externally blown double-slotted flap are reported. Root-mean-square values, power spectra, and scaling parameters are shown.
Some of the principal results obtained in three series of measurements of fluctuating surface pressures induced on externally blown flaps by jet impingment are presented. Large- and small-scale models and hot- and cold-flow tests are considered. The discussion sets forth scaling parameters and consistent features of the root-mean-square values and spectra of the loading. Implications of these results with regard to sonic fatigue are indicated.
Pressure distribution analysis of sound inside duct of ducted propellers
Sound radiation from unflanged circular waveguide duct with flow, calculating reflection coefficients, directivity pattern and power for comparison with approximate methods
Experiments and theory on strain response of simply supported beams to point and acoustic loading
Numerical lifting-surface method to calculate direct gust forces and moments on wings at subsonic speeds
Integral equation relating general time-dependent lift & downwash distributions of finite wings in subsonic flow
Time-dependent aerodynamic forces with application to a wing deforming harmonically according to a general polynomial equation
Strain response of simply supported structural beams to point and acoustic loading