1,721,053 research outputs found
Institutional data management blueprint project: Initial findings report
No full textIn the 10th anniversary year of the Open Archiving Initiative it is necessary to elevate research data to be a first-class citizen in the world of open scholarly communication. Such a profound goal requires far more than technical capability, but encompasses significant change for all stakeholders. Data curation and data management is often seen as an additional task for researchers. It is, however, a critical part of research best practice. In this project we are attempting to make it a seamless part of a researchers' daily workflow across a wide range of disciplines as a cornerstone of research practice.This report describes the initial findings from the Institutional Data Management Blueprint (IDMB) project, which aims to create a practical and attainable institutional framework for managing research data throughout its lifecycle that facilitates ambitious national and international e-research practice. The objective is to produce a framework for managing research data across the whole lifecycle that encompasses a whole institution (exemplified by the University of Southampton) and based on an analysis of current data management requirements for a representative group of disciplines with a range of different data.This report covers the data management audit, kick-off workshop, and data management framework development within the project
Service-oriented architectures for flight simulation: opportunities and challenges
No full textThere is a wide variety of scenarios that must be catered for in current and future flight simulation systems; from flight training devices, through to aircraft research and development, accident investigation and mission rehearsal. The development of distributed flight simulation systems has largely focused on coupling multiple simulator sessions in a common battle environment, using the High-Level Architecture (HLA) framework. This provides runtime interoperability, but relies on close-coupling between systems and a common runtime infrastructure. The HLA framework is implemented differently by different developers, so ultimately struggles to fulfill its purpose as an open standard. Service-oriented architectures (SOAs) could be the key to realizing these dreams of interoperability, because of the increased level of abstraction. In this paper a whole systems approach is discussed in the context of SOAs for flight simulation. SOAs based on loosely-coupled services are described, that will allow customers in the future to aggregate services from multiple vendors and data sources in a coherent and cost-effective manner. The design and delivery of Web Services and Software + Services infrastructures for flight simulation are possible solutions that are described in detail; they will be discussed in terms of flexibility, interoperability, extensibility, and reusability. As examples, end-to-end simulation system workflows are described: from content creation, validation, and publication across organisations; to flight mission design, execution and debrief for single and many user scenarios. The postulation is put forward that such an ecosystem is necessary for the industry, to be able to effectively deliver value to customers in the future, as the commoditisation of data becomes more prevalent.Lessons learned and future prospects, leveraging SOA research, development and deployment in the business domain, are highlighted. The technical and business opportunities and challenges facing the flight simulation industry, both from the customer and supplier viewpoints, will be discussed
Microsoft ESP: changing the game?
No full textThe development of commodity (PC) based computing hardware and software is having a significant impact on the training and simulation industry. A number of gaming platforms are already being used for military training applications, and having a positive impact. Microsoft ESP is a new simulation platform based on the popular Microsoft Flight Simulator series, and is fully supported for training and simulation applications. In this paper we describe how ESP bridges the gap between traditional and PC-based flight simulation solutions. Potential future directions and opportunities that ESP may enable will be explored in detail. The implications for standards and interoperability, and how this may be accelerated within the industry, will be addressed. Issues such as integration, validation and certification will be discussed. How this new simulation platform will affect business models in the industry is an open question, and the impact of, for example, long-tail economics will be assessed. The paper will conclude with thoughts on how ESP may be a key to reshaping the simulation industry in the future
Flying high at university: flight simulation in the lecture theatre
No full textIn this talk we described how the University of Southampton has integrated flight simulation into its Aerospace Engineering Bachelor of Engineering and Master of Engineering undergraduate degree courses. The development of a PC-based flight simulator, with support from BAE SYSTEMS, Microsoft and Intel, was described, along with exciting examples of how it has been used by students. Future directions for how flight simulation can be brought into the curriculum were also be discussed
Parallel discrete vortex methods for viscous flow simulation
No full textSIGLEAvailable from British Library Document Supply Centre-DSC:DXN027099 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
A generic operational simulation for early design civil unmanned aerial vehicles
No full textContemporary aerospace programmes often suffer from large cost overruns, delivery delays and inferior product quality. This is caused in part by poor predictive quality of the early design phase processes with regards to the operational environment of a product. This paper develops the idea of a generic operational simulation that can help designers to rigorously analyse and test their early product concepts. The simulation focusses on civil Unmanned Air Vehicle products and missions to keep the scope of work tractable. The research agenda is introduced along with ideas, initial results and future work. Designers specify details about their product, its environment and anticipated operational procedures. The simulation returns information that can help to estimate the value of the product using the value-driven design approach. Information will include recurring and non-recurring mission cost items. The research aim is to show that an operational simulation can improve early design concepts, thereby reducing delays and cost overruns. Moreover, a trade-off between mission fidelity and model generality is sought along with a generic ontology of civil Unmanned Air Vehicle missions and guidelines about capturing operational informatio
Comparative performance of a commodity Alpha cluster running Linux and Windows NT
No full textUsing a cluster of commodity Alpha processors we compare two software platforms based on Linux and Windows NT and intended to support intensive scientific computations. Networking and compiler performance are separately analyzed and then results for NAS parallel benchmarks are given. We find that a compiler able to make good use of the cache is more important than low network latency in obtaining high performance. We argue that for all types of cluster, the choice of compiler is critical in selecting a cost effective platform for computationally intensive scientific application
Real-time computational fluid dynamics for flight simulation
No full textA service oriented architecture is described that enables computational fluid dynamics (CFD) simulations to run alongside a human-in-the-loop flight simulator; thereby informing the behavior of a simulated aircraft whilst it is being piloted. The scenario of a helicopter landing on a moving ship at sea, is used as an example application.A generic service-oriented architecture is presented that allows coupling of a real-time flight simulator, flight dynamics model and CFD simulation running on a high performance computer. The case study used is performing unsteady CFD calculations used to model the aerodynamic development of, and interaction between, the ship and helicopter wakes; The CFD code resides on a cluster computer and is exposed to a PC-based flight simulator as a service, enabling two-way data exchange between the CFD and flight model whilst the simulation is running. Real-time analysis of the CFD results and control inputs allows prediction of the forces acting on the helicopter rotor, this is fed into a full six degree of freedom flight model. Performance results for the full end-to-end architecture are presented to demonstrate the capability, and limitations, of this approach. The paper concludes with a short discussion regarding the potential for this architecture to provide a generic representation of aircraft-environment interactions, and their influence on performance and handling. Implementing a more accurate representation of these phenomena in flight simulators could improve the ability to prepare pilots for challenging tasks such as: landing on ships, flying in urban environments, dealing with „brown-out? conditions, and encountering the wakes of other aircraft
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