Image-based Flow Visualization

picture info	Image-based Flow Visualization In scientific visualization, image-based flow visualization (or visualisation) is a computer modelling technique developed by Jarke van Wijk to visualize two dimensional flows of liquids such as water and air, like the wind movement of a tornado. Compared with integration techniques it has the advantage of producing a whole image at every step, as the technique relies upon graphical computing methods for frame-by-frame capture of the model of advective transport of a decaying dye. It is a method from the texture advection family. Principle The core idea is to create a noise texture on a regular grid and then bend this grid according to the flow (the vector field). The bent grid is then sampled at the original grid locations. Thus, the output is a version of the noise, that is displaced according to the flow. The advantage of this approach is that it can be accelerated on modern graphics hardware, thus allowing for real-time Real-time or real time describes various operations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Image-based Flow Visualization In scientific visualization, image-based flow visualization (or visualisation) is a computer modelling technique developed by Jarke van Wijk to visualize two dimensional flows of liquids such as water and air, like the wind movement of a tornado. Compared with integration techniques it has the advantage of producing a whole image at every step, as the technique relies upon graphical computing methods for frame-by-frame capture of the model of advective transport of a decaying dye. It is a method from the texture advection family. Principle The core idea is to create a noise texture on a regular grid and then bend this grid according to the flow (the vector field). The bent grid is then sampled at the original grid locations. Thus, the output is a version of the noise, that is displaced according to the flow. The advantage of this approach is that it can be accelerated on modern graphics hardware, thus allowing for real-time Real-time or real time describes various operations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Scientific Visualization Scientific visualization ( also spelled scientific visualisation) is an interdisciplinary branch of science concerned with the visualization of scientific phenomena.Michael Friendly (2008)"Milestones in the history of thematic cartography, statistical graphics, and data visualization" It is also considered a subset of computer graphics, a branch of computer science. The purpose of scientific visualization is to graphically illustrate scientific data to enable scientists to understand, illustrate, and glean insight from their data. Research into how people read and misread various types of visualizations is helping to determine what types and features of visualizations are most understandable and effective in conveying information. History One of the earliest examples of three-dimensional scientific visualisation was Maxwell's thermodynamic surface, sculpted in clay in 1874 by James Clerk Maxwell. This prefigured modern scientific visualization techniques that use computer graph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Jarke Van Wijk Jarke J. (Jack) van Wijk (born 1959) is a Dutch computer scientist, a professor in the Department of Mathematics and Computer Science at the Eindhoven University of Technology, and an expert in information visualization. Biography Van Wijk received his M.S. from the Delft University of Technology in 1982. His master's thesis, on simulation of traffic collisions, led him to become interested in computer visualization, and he remained at Delft for his doctoral studies, completing a Ph.D. in 1986 under the supervision of Dennis J. McConalogue. He worked at the Energy Research Centre of the Netherlands from 1988 until 1998, when he joined the Eindhoven faculty; he was promoted to a full professorship in 2001. As well as being a faculty member at TU Eindhoven, van Wijk is the vice president for scientific affairs at MagnaView, a Dutch information visualization company. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Tornado A tornado is a violently rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. It is often referred to as a twister, whirlwind or cyclone, although the word cyclone is used in meteorology to name a weather system with a low-pressure area in the center around which, from an observer looking down toward the surface of the Earth, winds blow counterclockwise in the Northern Hemisphere and clockwise in the Southern. Tornadoes come in many shapes and sizes, and they are often visible in the form of a condensation funnel originating from the base of a cumulonimbus cloud, with a cloud of rotating debris and dust beneath it. Most tornadoes have wind speeds less than , are about across, and travel several kilometers (a few miles) before dissipating. The most extreme tornadoes can attain wind speeds of more than , are more than in diameter, and stay on the ground for more than 100 k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Texture Advection Texture may refer to: Science and technology * Surface texture, the texture means smoothness, roughness, or bumpiness of the surface of an object * Texture (roads), road surface characteristics with waves shorter than road roughness * Texture (cosmology), a theoretical topological defect in the structure of spacetime * Texture (crystalline), material's individual crystallites sharing some degree of orientation * Texture (geology), a physical appearance or character of a rock * Texture mapping, a bitmap image applied to a surface in computer graphics * Soil texture, a relative proportion of grain sizes of a soil * Scalar field Arts * Texture (visual arts), an element of design and its application in art Music * Texture (music), an overall sound created by the interaction of aspects of a piece of music * ''Textures'' (album), a 1989 album by Brian Eno * Textures (band), a metal band from the Netherlands, who formed in 2001 in Tilburg Other uses * Texture (app), a digital app giv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Image-Based Flow Visualization In scientific visualization, image-based flow visualization (or visualisation) is a computer modelling technique developed by Jarke van Wijk to visualize two dimensional flows of liquids such as water and air, like the wind movement of a tornado. Compared with integration techniques it has the advantage of producing a whole image at every step, as the technique relies upon graphical computing methods for frame-by-frame capture of the model of advective transport of a decaying dye. It is a method from the texture advection family. Principle The core idea is to create a noise texture on a regular grid and then bend this grid according to the flow (the vector field). The bent grid is then sampled at the original grid locations. Thus, the output is a version of the noise, that is displaced according to the flow. The advantage of this approach is that it can be accelerated on modern graphics hardware, thus allowing for real-time Real-time or real time describes various operations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Real-time Simulation Real-time simulation refers to a computer model of a physical system that can execute at the same rate as actual "wall clock" time. In other words, the computer model runs at the same rate as the actual physical system. For example, if a tank takes 10 minutes to fill in the real world, the simulation would take 10 minutes as well. Real-time simulation occurs commonly in computer gaming, but also is important in the industrial market for operator training and off-line controller tuning. Computer languages like LabVIEW, VisSim and Simulink allow quick creation of such real-time simulations and have connections to industrial displays and programmable logic controllers via OLE for process control or digital and analog I/O cards. Several real-time simulator are available on the market like xPC Target and RT-LAB for mechatronic systems and using Simulink, eFPGASIM and eDRIVESIM for power electronic simulation and eMEGASIM, HYPERSIM and RTDS for power grid real-time (RTS) simulati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Scientific Visualization Scientific visualization ( also spelled scientific visualisation) is an interdisciplinary branch of science concerned with the visualization of scientific phenomena.Michael Friendly (2008)"Milestones in the history of thematic cartography, statistical graphics, and data visualization" It is also considered a subset of computer graphics, a branch of computer science. The purpose of scientific visualization is to graphically illustrate scientific data to enable scientists to understand, illustrate, and glean insight from their data. Research into how people read and misread various types of visualizations is helping to determine what types and features of visualizations are most understandable and effective in conveying information. History One of the earliest examples of three-dimensional scientific visualisation was Maxwell's thermodynamic surface, sculpted in clay in 1874 by James Clerk Maxwell. This prefigured modern scientific visualization techniques that use computer graph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Numerical Function Drawing Numerical may refer to: * Number * Numerical digit * Numerical analysis Numerical analysis is the study of algorithms that use numerical approximation (as opposed to symbolic computation, symbolic manipulations) for the problems of mathematical analysis (as distinguished from discrete mathematics). It is the study of ... {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]