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2D CFD Bullet in a Pipe 
This is not my video. I found it on the web. Thought it would be interesting to the community. This is a 2d CFD simulation of a supersonic bullet fired down a pipe, made using a special version of VH1 that can simulate flow around rigid objects.The solver is PPM-LR, piecewise-parabolic method (Collela & Woodward), with a Lagrangian remap.
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Added By - matlabuser
Subject - Aeronautics and Astronautics
Document Type -
Video Duration - 00:00:46


IBM Research Computational Biology Center  

Computational biology is an interdisciplinary field that applies the techniques of computer science, applied mathematics and statistics to address biological problems. The main focus lies in the development of computational and statistical data analysis methods and in developing mathematical modeling and computational simulation techniques. By these means it addresses scientific research topics with their theoretical and experimental questions without a laboratory. It is connected to the following fields: (1) Computational biomodeling, a field concerned with building computer models of biological systems.(2)  

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Added By - autocrawler
Subject - Bioengineering
Document Type - Documentary
Video Duration - moderate


Flow Visualization: Aerodynamics of Truck vs.... 

A video showing the flow of dye over and through a Nascar and Truck illustrating fluid mechanics and aerodynamics. In fluid dynamics it is critically important to see the patterns produced by flowing fluids, in order to understand them. We can appreciate this on several levels: Most fluids (air, water, etc.) are transparent, thus their flow patterns are invisible to us without some special methods to make them visible.On another level, we know the governing equations of fluid motion (the Navier-Stokes equations), but they are nonlinear partial differential equations with very few general solutions of practical utility. We can solve them numerically with modern computer methods, but these solutions may not correspond to ...

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Added By - justin
Subject - Aeronautics and Astronautics
Document Type - Experiments
Video Duration - 00:04:45


Finite Difference 
A finite difference is a mathematical expression of the form f(x + b) − f(x + a). If a finite difference is divided by b − a, one gets a difference quotient. The approximation of derivatives by finite differences plays a central role in finite difference methods for the numerical solution of differential equations, especially boundary value problems. In mathematical analysis, operators involving finite differences are studied. A difference operator is an operator which maps a function f to a function whose values are the corresponding finite differences. An important application of finite differences is in numerical analysis, especially in numerical ordinary differential equations and numerical partial differential equations, which aim at the numerical solution of ordinary and partial differential equations respectively. The idea is to replace the derivatives appearing in the differential equation by finite differences that approximate them. The resulting methods are called finite difference methods. Common applications of the finite difference method are in computational science and engineering disciplines, such as thermal engineering, fluid mechanics, etc.
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Added By - Ipshita Chakraborty
Subject - Aeronautics and Astronautics
Document Type - White Board
Video Duration - 00:11:05


Manipulating Animated Functions in Mathematic... 
This is an example of the use of the Manipulate function in Mathematica 6 to animate a 3D plot. The function is sin(mx) x^p y + b where m, b, and p are being manipulated.

Mathematica is a general computing environment, organizing many algorithmic, visualization, and user interface capabilities within a document-like user interface paradigm. It was originally conceived by Stephen Wolfram, developed by a team of mathematicians and programmers that he assembled and led, and it is sold by his company Wolfram Research of Champaign, Illinois.

Since version 1.0 in 1988, Mathematica has steadily expanded into more and more general computational capabilities. Besides addressing nearly every field of mathematics, it provides cross-platform support for a wide range of tasks such as giving computationally interactive presentations, a multifaceted language for data integration, graphics editing, and symbolic user interface construction. An organized index of its functionality can be found here.

Many major educational and research organizations have Mathematica site licenses, and individual licenses are also sold. With Mathematica 6, a free interactive player is provided for running M...
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Added By - 123456
Subject - Softwares and Programming Languages
Document Type - Demonstration
Video Duration - 00:00:02


UCSD Computational MS Demo 

Video demo of the UCSD computational mass spectrometry tool.

I have copied the accompanying article from wikipedia. The link to the wikipedia page is given below.

The earliest devices that measured the mass-to-charge ratio of ions were called mass spectrographs because they were instruments that recorded a spectrum of mass values on a photographic plate.[2][3] Removing several letters, such as the bound morphemes and free morphemes, and combining the lingustical roots of spectr-um and phot-<...

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Added By - appliedmath
Subject - Softwares and Programming Languages
Document Type - Demonstration
Video Duration - 00:03:25


MIT builds trillion-frame-per-second video 

MIT researchers from the Media Lab  (Ramesh Raskar, Moungi G. Bawendi, Andreas Velten)  have created a new imaging system that can acquire visual data at a rate of one trillion exposures per second. That’s fast enough to produce a slow-motion video of a burst of light traveling the length of a one-liter bottle, bouncing off the cap and reflecting back to the bottle’s bottom.

For more information on this topic, please visit MIT's link at :


MIT's page says that "The trillion-frame-per-second imaging system, which the researchers have presented both at the Optical Society's Computational Optica...

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Added By - A Ghosh
Subject - Electrical Engineering
Document Type - Documentary
Video Duration - moderate

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