We studied the effects of wing deformation on the aerodynamic forces of wings of hovering hoverflies by solving the Navier-Stokes equations on a dynamically deforming grid, employing the recently measured wing deformation data of hoverflies in free-flight. Three hoverflies were considered. By taking out the camber deformation and the spanwise twist deformation one by one and by comparing the re...

Title of Thesis: CHARACTERIZING CIGARETTE LIGHTER FLAMES TO REDUCE UNWANTED IGNITION Justin Wade Williamson, Master of Sciences, 2003 Thesis Directed By: Professor André W. Marshall Department of Fire Protection Engineering This investigation provides detailed measurements and analysis for improved understanding of ignition from the ‘small’ flames produced by cigarette lighters. This research p...

Laser interferometric methods have been utilized for the measurement of natural convection heat transfer from a heated vertical flat plate, in the investigation presented here. The study mainly aims at comparing two different fringe orientations in the wedge fringe setting of Mach-Zehnder interferometer (MZI), used for the measurements. The interference fringes are set in horizontal and vertica...

Centripetal instabilities in two flows involving time-dependent Rayleigh layers on a rotating circular cylinder are examined. In one case we consider the stability of the flow induced in an infinite expanse of quiescent fluid when the cylinder is impulsively given a constant angular velocity; in the other problem the angular velocity increases as the square root of time so that the undisturbed ...

1959 SUMMARY A method is given for representing the results of wind-tunnel tests of fan wings in a non-dimensional form suitable for the analysis of transition mQtion3. The procedure takes into account the effect on power requirements of variation of thrust engine loading in relation to that of the fan. As an example, results are displayed of tests of a rectangular wing of aspect ratio I with f...

Saleh, Ahmad M. M.S.E., Purdue University, May 2012. Modeling Of Flat-Plate Solar Collector Operation in Transient States. Major Professor: Hosni Abu-Mulaweh. Solar energy is becoming an alternative for the limited fossil fuel resources. One of the simplest and most direct applications of this energy is the conversion of solar radiation into heat, which can be used in water heating systems. A c...