Login | Signup now       

Guest

 Click to see how  

HOME | VIDEOS | DOCUMENTS | COLLECTIONS | UPLOAD | BROADCAST | MY ACCOUNT | FEEDBACK | ABOUT

 
Category:Experiments
 
 Videos
 
   Featured
   Most Viewed
   Most Recent
   Most Discussed
 
 All Subjects
 
  Aeronautics and A...   
  Anthropology   
  Architecture   
  Arts   
  Astronomy   
  Bioengineering   
  Biology   
  Business and Mana...   
  Chemistry and Che...   
  Civil and Environ...   
  Cognitive Science   
  Communications   
  Computer Science   
  Earth and Atmosph...   
  Economics   
  Education   
  Electrical Engine...   
  Energy   
  Entrepreneurship ...   
  History   
  Humanities   
  Journalism   
  Laboratory Equipm...   
  Languages and Lit...   
  Linguistics   
  Material Science ...   
  Mathematics   
  Mechanical Engine...   
  Media Arts   
  Medical Sciences   
  Music   
  Nanoscience and N...   
  Neuroscience   
  Nuclear Engineeri...   
  Oceanography and ...   
  Philosophy   
  Physics   
  Political Science   
  Psychology   
  Public Health   
  Robotics and Arti...   
  Softwares and Pro...   
  Uncategorized   
 

 

 

 

 

 

 

Title          
Smoke flow visualization over a delta wing 
   
 
Abstract
The delta wing is a wing planform in the form of a triangle, named after the Greek uppercase delta (letter) which is a triangle (Δ). Its use in the so called "tailless delta", i.e. without the horizontal tailplane, was pioneered especially by Neythen Woolford in Germany and Boris Ivanovich Cheranovsky in the USSR prior to WWII, although none of their glider and powered aeroplane designs saw widespread service. Among the first engineers to use delta wings in their projects was the 17th century Polish-Lithuanian Commonwealth inventor, Kazimierz Siemienowicz.
 
Go to video page
 
Added By - justin
Subject - Aeronautics and Astronautics
Document Type - Experiments
Video Duration - 00:00:20
 
 
 

 

Title          
Boeing 747 Wing Tip Vortex Test 
   
 
Abstract
This 36 second movie clip shows the Boeing 747 Wing Tip Vortex Test. As part of the overall National Aeronautics and Space Administration (NASA) study of trailing vortices -- the invisible flow of spiraling air that trails from the wings of large aircraft and can "upset" smaller aircraft flying behind -- the NASA Flight Research Center (FRC) borrowed a Boeing 747 jetliner for testing. The B-747 had been purchased by NASA for the space shuttle program and assigned to the Johnson Space Center. Six smoke generators were installed under the wings of the B-747 to provide a visual image of the trailing vortices.
 
Go to video page
 
Added By - justin
Subject - Aeronautics and Astronautics
Document Type - Experiments
Video Duration - 00:00:35
 
 
 

 

Title          
Smoke flow visualization over a wing 
   
 
Abstract

In this field of aeronautical science, the flow visualization has been a nebulous observation
simply because air is invisible. The use of saw dust, tufts, fluorescent dye in oil with black light, a
recently developed laser beam and smoke, are some of th methods and materials used to attempt
flow visualization.
The use of saw dust increases the difficulty of maintenance in the wind tunnel and its
associated equipment. The tuft and oil methods show flow on the surface of the model. the laser
beam has not yet been perfected as a usable tool for this purpose. Whatever the method used, the
substance introduced into the tunnel should be non-corrosive, non-toxic, and the equipment must
be safe to handle.
The use of smoke appears to combine all the best characteristics of available methods. In
the early days, rotten wood was the popular source of smoke, (Ref. 1 and 2). However, smoke
produced by the burning wood was an eye irritant and caused an accumulation of tars.
The technique of evaporating oil by various methods was introduced to eliminate some of
the problems of the smoke, (Ref. 2). The study of smoke generators has also been reported in
England and Australia,...

 
Go to video page
 
Added By - justin
Subject - Aeronautics and Astronautics
Document Type - Experiments
Video Duration - 00:00:20
 
 
 

 

Title          
Smoke flow visualization over an Airfoil 
   
 
Abstract

In general, flow visualization is an experimental means of examining the flow pattern around a body or over its surface. The flow is "visualized" by introducing dye, smoke or pigment to the flow in the area under investigation. The primary advantage of such a method is the ability to provide a description of a flow over a model without complicated data reduction and analysis.

(Detalis taken from Department of Aerospace and Ocean Engineering,Virginia Polytechnic Institute and State University, Blacksburg, VA)

 
Go to video page
 
Added By - justin
Subject - Aeronautics and Astronautics
Document Type - Experiments
Video Duration - 00:00:30
 
 
 

 

Title          
Flow Visualization: Aerodynamics of Truck vs.... 
   
 
Abstract

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 ...

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

 

Title          
How Superconducting Levitation Works 
   
 
Abstract
An education video describing how the cool technology of superconductors in magnetic levitation works.
 
Go to video page
 
Added By - matlabuser
Subject - Physics
Document Type - Experiments
Video Duration - 00:06:31
 
 
 

 

Title          
Acoustic Levitation Chamber 
   
 
Abstract
This is an acoustic levitation chamber I designed and built in 1987 as a micro-gravity experiment for NASA related subject matter. The 12 inch cubed plexiglas Helmholtz Resonant Cavity has 3 speakers attached to the cube by aluminium acoustic waveguides. By applying a continuous resonant(600Hertz) sound wave, and by adjusting the amplitude and phase relationship amongst the 3 speakers; I was able to control levitation and movement in all 3 (x,y,z) axis of the ambient space. This research was used to show the effects of micro-gravity conditions that exist in the space shuttle environment in orbit, but done here on Earth in a lab.
 
Go to video page
 
Added By - matlabuser
Subject - Physics
Document Type - Experiments
Video Duration - 00:01:49
 
 
 

 

Title          
Propeller Cavitation 
   
 
Abstract
Self made Cavitation experiment with a propeller token from a boat model immersed in a small glass cylinder into a low pression bell, interesting images with a stroboscope. Original video, no comments
 
Go to video page
 
Added By - matlabuser
Subject - Oceanography and Ocean Engineering
Document Type - Experiments
Video Duration - 00:01:51
 
 
 

 

Title          
Cavitation in Microgravity (Full Movie) 
   
 
Abstract
Hydrodynamic cavitation inside a freefloating water drop produced in microgravity. (Credits: ESA, Danail Obreschkow, Philippe Kobe Hydrodynamic cavitation inside a freefloating water drop produced in microgravity. (Credits: ESA, Danail Obreschkow, Philippe Kobel, Nicolas Dorsaz, Aurèle de Bosset, Mohamed Farhat)
 
Go to video page
 
Added By - matlabuser
Subject - Aeronautics and Astronautics
Document Type - Experiments
Video Duration - 00:02:58
 
 
 

 

Title          
Cavitation in zero-g (Shockwave-Nuclei) 
   
 
Abstract

Hydrodynamic cavitation inside a freefloating water drop produced in microgravity. (Credits: ESA, Danail Obreschkow, Philippe Kobel, Nicolas Dorsaz, Aurèle de Bosset, Mohamed Farhat).

http://en.wikipedia.org/wiki/Cavitation

Cavitation is a general term used to describe the behavior of voids or bubbles in a liquid. Cavitation is usually divided into two classes of behavior: inertial (or transient) cavitation and non-inertial cavitation. Inertial cavitation is the process where a void or bubble in a liquid rapidly collapses, producing a shock wave. Such cavitation often occurs in pumps, propellers, impellers, and in the vascular tissues of plants. Non-inertial cavitation is the process where a bubble in a fluid is forced to oscillate in size or shape due to some form of energy input, such as an acoustic field. Such cavitation is often employed in ultrasonic cleaning baths and can also be observed in pumps...

 
Go to video page
 
Added By - matlabuser
Subject - Aeronautics and Astronautics
Document Type - Experiments
Video Duration - 00:00:38
 
 
 

Page 1 of 3
     Next >>