9 research outputs found

    Aircraft Leading Edge Strakes on Conventional NACA Wings

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    The prevention of stall on aircraft wings has been a great challenge over the history of airplanes. As the aircraft become more and more complex, it becomes harder to fit high lift devices and leading-edge devices onto high camber, supercritical airfoil aircraft wings. In the fighter jet class of aircraft the obstacle of stall is usually delayed by the implementation of leading-edge root extensions or strakes. Strakes create a tip vortice along the sharp leading edge that transitions over the surface of the wing preventing separation on both the upper and lower surface of the wing allowing the fighter jet to experience higher angles of attack. Implementation of a strake has been proven to be effective on thin, low aspect ratio wings since there is not an aggressive curve that vortice must overcome at the leading edge of the wing. In this study, using Computation Fluid Dynamics (CFD) via the Department of Defense’s new program HPCMP Create Genesis we are creating a series of geometry sets that will be run though the CFD flow simulation program to show what each iteration of strake does for a conventional NACA airfoil with camber and a much thicker cross section and if strakes aid in delaying onset of stall allowing aircraft, such as passenger planes, to safely operate at higher angles of attack. This information can be of great use as it can help prevent airline crashes that involve stall at take-off. POSTER PRESENTATION IGNITE AWAR

    SAE Aero West Heavy Lift Competition Team - Eaglenautics

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    ERAU’s SAE Aero Design West Competition team encourages students of all majors who have an interest in the design of heavy-lift cargo and passenger aircraft to design, build, and fly a large RC aircraft to meet a new set of regulations each competition year. Since the team, Eaglenautics, was founded in 2017 it has successfully been to competition once in April 2019 in California. The team’s aircraft flew 4 out of 5 flight rounds, passed all technical inspections, and is now on display in ERAU’s Aero-Fab in the AXFAB. The 2020 competition requirements are unique in that the cargo’s weight-to-volume ratio directly affect the team’s overall flight score. The 2020 rules also dictate a maximum wingspan of 10 feet, maximum gross takeoff weight (GTOW) of 55 lbs, and a maximum power limitation of 1000 Watts. For Eaglenautics’ competition class, fiber-reinforced plastics such as carbon fiber are prohibited. These regulations simulate similar design requirements for large passenger or cargo aircraft. The team utilizes modern engineering techniques like Computational Fluid Dynamics (CFD), aircraft optimization, and structural analysis to verify more traditional methods. This process gives students practical experience with aircraft design not found in coursework which can be applied at companies such as Boeing after graduation. The team’s 2020 aircraft design has a wingspan of 5.5 ft, an estimated GTOW of 31 lbs, and will be manufactured by the team over the next month to compete in Texas in April 2020. POSTER PRESENTATION EAGLE PRIZE AWAR

    The Biomolecular Interaction Network Database and related tools 2005 update

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    The Biomolecular Interaction Network Database (BIND) (http://bind.ca) archives biomolecular interaction, reaction, complex and pathway information. Our aim is to curate the details about molecular interactions that arise from published experimental research and to provide this information, as well as tools to enable data analysis, freely to researchers worldwide. BIND data are curated into a comprehensive machine-readable archive of computable information and provides users with methods to discover interactions and molecular mechanisms. BIND has worked to develop new methods for visualization that amplify the underlying annotation of genes and proteins to facilitate the study of molecular interaction networks. BIND has maintained an open database policy since its inception in 1999. Data growth has proceeded at a tremendous rate, approaching over 100 000 records. New services provided include a new BIND Query and Submission interface, a Standard Object Access Protocol service and the Small Molecule Interaction Database (http://smid.blueprint.org) that allows users to determine probable small molecule binding sites of new sequences and examine conserved binding residues

    The therapeutic potential of epigenetic manipulation during infectious diseases.

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    Epigenetic modifications are increasingly recognized as playing an important role in the pathogenesis of infectious diseases. They represent a critical mechanism regulating transcriptional profiles in the immune system that contributes to the cell-type and stimulus specificity of the transcriptional response. Recent data highlight how epigenetic changes impact macrophage functional responses and polarization, influencing the innate immune system through macrophage tolerance and training. In this review we will explore how post-translational modifications of histone tails influence immune function to specific infectious diseases. We will describe how these may influence outcome, highlighting examples derived from responses to acute bacterial pathogens, models of sepsis, maintenance of viral latency and HIV infection. We will discuss how emerging classes of pharmacological agents, developed for use in oncology and other settings, have been applied to models of infectious diseases and their potential to modulate key aspects of the immune response to bacterial infection and HIV therapy

    New Department of Defense Computational Fluid Dynamics Software Suite Evaluation

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    The Department of Defense High Performance Computing Modernization Program CREATE Genesis software suite is a newly developed Computational Fluid Dynamics (CFD) package targeted towards education and research. The purpose of this project is to evaluate this software suite, which is divided into three parts known as Genesis-Geometry, Capstone, and GenesisCFD, for potential use for Senior Capstone projects at Embry – Riddle Aeronautical University (ERAU) in Prescott Arizona. Based on the research findings, certain aspects of this software suite could be implemented while others cannot be recommended for various reasons. Genesis-Geometry, a Computer Aided Drafting program, is unrefined and difficult to learn and use, so cannot be recommended for implementation. Although Capstone is a decent tool for meshing simple objects like wings and cylinders, as the geometry becomes larger in volume and more complex the program quickly struggles or fails completely. GenesisCFD is robust and easy to use as a CFD software and although simplistic, GenesisCFD is suitable for most educational and undergraduate research simulation cases. It is also easy to learn and understand, even with little to no background in CFD simulations; however, a background in Linux systems is very helpful, as this portion of the suite only runs on Linux. Overall, GenesisCFD is the only portion of the suite to be recommended because of its ease of use and education-promoting design

    Design, Simulate, Build, and Fly a Heavy Lift Aircraft

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    The SAE Aero Design West Competition challenges undergraduate students to design, build, and fly (DBF) an RC aircraft with maximum passengers and luggage possible. Power is limited to 1,000 W, maximum takeoff weight is 55 lbs, and maximum wing span is 12 feet. ERAU’s SAE DBF team, Eaglenautics, was founded in 2017 with the intent of applying computer simulations to DBF activities, emphasizing the use of modern engineering methods such as Computational Fluid Dynamics (CFD), aircraft optimization, and Finite Element Analysis (FEA). These methods support and validate the aircraft design process while utilizing ERAU’s Advanced Computing and Simulation Laboratory’s High-Performance Computers (HPC), allowing students to effectively meet or exceed the given challenges, save time, and conserve money and effort. Effectively designing and manufacturing a heavy lift aircraft and competing with other groups will give students practical experience in solving engineering problems, as well as providing them with experience and knowledge necessary to contribute to larger projects. The Eaglenautics team has designed a 40lb, 12-foot wingspan aircraft carrying 36 tennis ball passengers with 18 lb. of steel-plates as luggage. The team will compete at the April 2019 SAE Aero Design West competition in Van Nuys, CA. POSTER PRESENTATION EAGLE PRIZE AWAR
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