Tracking A Turbulent Spot In An Immersive Environment
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Author | : David C. Banks |
Publisher | : |
Total Pages | : 20 |
Release | : 1995 |
Genre | : Computer graphics |
ISBN | : |
Abstract: "We describe an interactive, immersive 3D system called Tracktur, which allows a viewer to track the development of a turbulent flow. Tracktur displays time-varying vortex structures extracted from a numerical flow simulation. The user navigates the space and probes the data within a windy 3D landscape. In order to sustain a constant frame rate, we enforce a fixed polygon budget on the geometry. We supplement the interactive system with interactive, hypertext documentation available on the World Wide Web. In actual use by a fluid dynamicist, the system has yielded new insights into the transition to turbulence in a laminar flow."
Author | : |
Publisher | : |
Total Pages | : 380 |
Release | : 1995 |
Genre | : Aeronautics |
ISBN | : |
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author | : |
Publisher | : |
Total Pages | : 176 |
Release | : 1996 |
Genre | : Aeronautics |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 172 |
Release | : 1996 |
Genre | : Astronautics |
ISBN | : |
This document is a compilation of the scientific and technical information that the Langley Research Center has produced during the calendar year 1995. Included are citations for formal reports, high-numbered conference publications, high-numbered technical memorandums, contractor reports, journal articles and other publications, meeting presentations, technical talks, computer programs, tech briefs, and patents.
Author | : |
Publisher | : |
Total Pages | : 1000 |
Release | : 1996-07 |
Genre | : Government publications |
ISBN | : |
Author | : David C. Banks |
Publisher | : |
Total Pages | : 36 |
Release | : 1995 |
Genre | : Computer graphics |
ISBN | : |
Abstract: "We present a method for visualizing unsteady flow by displaying its vortices. The vortices are identified by using a vorticity- predictor pressure-corrector scheme that follows vortex cores. The cross- sections of a vortex at each point along the core can be represented by a Fourier series. A vortex can be faithfully reconstructed from the series as a simple quadrilateral mesh, or its reconstruction can be enhanced to indicate helical motion. The mesh can reduce the representation of the flow features by a factor of one thousand or more compared with the volumetric dataset. With this amount of reduction it is possible to implement an interactive system on a graphics workstation to permit a viewer to examine, in three dimensions, the evolution of the vortical structures in a complex, unsteady flow."
Author | : |
Publisher | : |
Total Pages | : 674 |
Release | : 1996 |
Genre | : Government publications |
ISBN | : |
Author | : G. Bruce Wiersma |
Publisher | : CRC Press |
Total Pages | : 792 |
Release | : 2004-04-27 |
Genre | : Technology & Engineering |
ISBN | : 0203495470 |
The current rate and scale of environmental change around the world makes the detection and understanding of these changes increasingly urgent. Subsequently, government legislation is focusing on measurable results of environmental programs, requiring researchers to employ effective and efficient methods for acquiring high-quality data. Focusing on pollution issues and impacts resulting from human activities, Environmental Monitoring is the first to bring together the conceptual basis behind the complex and specific approaches to the monitoring of air, water, and land. Coverage includes integrated monitoring at the landscape level, as well as case studies of existing monitoring programs such as the Chesapeake Bay Program. The book also addresses the recent legislative focus on high-quality data results and conducting monitoring programs in different ecosystems and environmental media.
Author | : András Benczúr |
Publisher | : Springer |
Total Pages | : 299 |
Release | : 2018-07-28 |
Genre | : Computers |
ISBN | : 3319983989 |
This book constitutes the proceedings of the 22nd European Conference on Advances in Databases and Information Systems, ADBIS 2018, held in Budapest, Hungary, in September 2018. The 17 regular papers presented together with two invited papers were carefully selected and reviewed from numerous submissions. The papers are organized in topical sections such as information extraction and integration; data mining and knowledge discovery; indexing, query processing and optimization; data quality and data cleansing; distributed data platforms, including cloud data systems, key-value stores, and big data systems; and streaming data analysis; web, XML and semi-structured databases.
Author | : Constantin Andronache |
Publisher | : Elsevier |
Total Pages | : 302 |
Release | : 2017-09-28 |
Genre | : Science |
ISBN | : 012810550X |
Mixed-Phase Clouds: Observations and Modeling presents advanced research topics on mixed-phase clouds. As the societal impacts of extreme weather and its forecasting grow, there is a continuous need to refine atmospheric observations, techniques and numerical models. Understanding the role of clouds in the atmosphere is increasingly vital for current applications, such as prediction and prevention of aircraft icing, weather modification, and the assessment of the effects of cloud phase partition in climate models. This book provides the essential information needed to address these problems with a focus on current observations, simulations and applications. - Provides in-depth knowledge and simulation of mixed-phase clouds over many regions of Earth, explaining their role in weather and climate - Features current research examples and case studies, including those on advanced research methods from authors with experience in both academia and the industry - Discusses the latest advances in this subject area, providing the reader with access to best practices for remote sensing and numerical modeling