Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Unsteady Aerodynamic Characteristics"”.
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Measurement of unsteady aerodynamic characteristics of a subscale aerobatic aircraft in high angle-of-attack maneuvers
… trajectory plots, time histories and aircraft aerodynamic coefficient data. These plots showed unsteady aerodynamic effects exhibited by the aircraft. Among these results was one version of wing rock, where given a certain aircraft configuration with constant control surface inputs, the …
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An Aerodynamic Model for Use in the High Angle of Attack Regime
… a linear filter must be used to extract out the aerodynamic responses. To achieve this, a Finite Impulse Response (FIR) is designed using the Remez exchange algorithm. Based on the reduced data, a state–space model is developed to describe the unsteady aerodynamic characteristics of the aircraft …
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Aerodynamics and multi-fidelity surrogate modelling of an inverted wing with vortex generators in ground effect
… a moving belt rig, studying time-averaged and unsteady aerodynamic characteristics. The experimental work performed shows that a use of vortex generators, notably of the counter-rotating sub-boundary layer vortex generator type, can be effective at controlling flow separation, with a resultant …
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Identification of an Unsteady Aerodynamic Model up to High Angle of Attack Regime
… by Remez exchange algorithm to extract the aerodynamic characteristics responses to the programmed motions from the resampled measurements. These data reduction procedures are also illustrated through examples. The results obtained from the harmonic oscillatory tests are then illustrated and …
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Time-domain and harmonic balance turbulent Navier-Stokes analysis of wind turbine aerodynamics using a fully coupled low-speed preconditioned multigrid solver
… with a particular emphasis on the steady and unsteady aerodynamics analysis of complex low speed turbulent flows. Such turbulent flow problems include horizontal axis wind turbine (HAWT) and vertical axis wind turbine (VAWT) operating at design and off-design conditions. On the algorithmic …