46033 research outputs found
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Carlos Montoya
No full textCarlos Montoyahttps://commons.und.edu/performing-arts-photos/1279/thumbnail.jp
CO2 Enhanced Oil Recovery in the Dickinson Lodgepole Mounds
No full textThis fact sheet describes the potential for CO2 enhanced oil recovery (EOR) in the Dickinson Lodgepole Mounds of Stark County, North Dakota. It highlights how geology and established practices can increase oil production while securely storing CO2 and supporting local communities.https://commons.und.edu/eerc-brochures/1170/thumbnail.jp
Colburn Hvidston III and Governor Guy, ca.1960s
No full textBlack and white photographs taken in the 1960\u27s of North Dakota State Governor, William Guy (1961-1973) sitting in the open cockpit of what appears to be a 1960\u27s US Airforce Jet Fighter. He looks to be engaged in conversation with Colburn Hvidston III Fargo Forum), a well known local photographer, who can be seen boarding the top of the cockpit ladder.
The quote on the back of photo explains in light humor, Colburn Hvidston III (Forum) decides to eject when Gov. Guy says he\u27ll fly the plane.
Location is unknown.https://commons.und.edu/gf-city-photos/1306/thumbnail.jp
When Wheat Failed, Oil Beckoned: Rural Desperation and New Dreams in Depression-Era North Dakota
No full textThis zine explores how economic desperation during the Great Depression reshaped the attitudes of North Dakota farm families, leading them to view oil development as a potential path to survival and long-term stability. By combining scholarly research with primary-source context, it highlights how personal hardship, state leadership, and broader economic forces converged to transform oil from a speculative curiosity into a serious alternative to failing agriculture.https://commons.und.edu/history-hawks/1010/thumbnail.jp
Aerodynamic Analysis of the Constrained NACA 8412 Airfoil for Formula SAE Application using Thin-Airfoil and Lifting-Line Theories
No full textThis project applies Thin-Airfoil Theory (TAT) and Lifting-Line Theory (LLT) to evaluate the aerodynamic characteristics of the inverted NACA 8412 airfoil as a single-element rear wing for Formula SAE. The 2D analysis was validated against XFOIL (Re = 480,000), confirming a zero- lift angle of αL=0 = -8.326° and establishing a viscous limit of cl,max ≈ 1.90 at αstall ≈ 13.0°. The 3D LLT model quantified the induced drag (CD,i), demonstrating that the wing\u27s low aspect ratio and rectangular planform reduce efficiency compared to elliptic loading, with the induced drag being the dominant total drag component at high angles of attack. Parametric analysis demonstrated that increasing the Aspect Ratio (up to AR = 4.0) minimized the induced drag for a given lift coefficient, while dimensional downforce scaled quadratically with velocity, giving high structural loads at the 18 m/s operational limit. These results provide important data for balancing efficiency and downforce targets in the final FSAE wing design
Aerodynamic Forces in Water and Air with Changing Wing Geometry
No full textThis paper is an exploration of how the effects of wing geometry on the lift and drag in both air and water. The purpose of these findings is to understand if there exists a foil geometry that would offer the best lift-drag ratio in both fluids. To find the answer, chamber, chord, span, and aspect ratio were adjusted in an attempt to maximize lift and drag. The calculations were done through Matlab and the results are shown through Matlab figures. The Matlab code created shows that symmetric airfoils have the greatest lift to drag ratios due to their lower drag and relatively high lift. Cambered foils create higher lift at the cost of higher drag, reducing the lift-drag ratio. It is further found that aspect ratio has the greatest effect over lift-drag ratios. To maximize lift and minimize drag, aspect ratio should be as high as possible
Memory?
No full textA non representational painting of green and gold leaf swirls and dots on a dark blue background and lines of gold leafing that resemble a streak of lightninghttps://commons.und.edu/uac-all/4951/thumbnail.jp
Hawk-ey
No full textA detailed hawk with vintage pilot\u27s goggles and a leather hat against an olive background with kelly green stripes.https://commons.und.edu/uac-all/4946/thumbnail.jp