Applications of videoadapter to engineering problems
Genetibase
1. Introduction
A set of engineering problems requires a very large volume of calculations. However present-day video adapters enable us essetially improve perfomance of such calculations. This article is devoted to such problems.
2. Background
Present-day video adapters use modern technology and have high performance. They have own memory and they can draw a virtual on it. These features may be used for essential improving of performance of engineering calculations. I'll provide examples devoted to physical optics and space aerodynamics. So let us start.
3. Physical optics
Physical optics is also the name of a high frequency approximation (short-wavelength approximation) commonly used in optics, electrical engineering and applied physics. In this context, it is an intermediate method between geometric optics, which ignores wave effects, and full wave electromagnetism, which is a precise theory. The word "physical" means that it is more physical than geometric or ray optics and not that it is an exact physical theory. Physical optics is effective for convex 3D shapes but it may be used for shapes those are not convex. If we would like to use physical optics we should to define visible parts of 3D shape. As rule this task requires a very large volume of calculations. However we can mark parts of shape by different colors and then define a set of colors those are presented on the picture (see picture above). Using this metod we can define visible parts much more quickly. If number of parts exceed number of colors then we can use more than one image.
4. Space aerodynamics
The key feature of space aerodynamics is that spacecraft interacts with molecules those do not collide with themseves. Therefore aerodynamic force depends on visible area and does not depend on other parameters of spacecraft shape. Visible area may be calculated by calculation of white pixels on the following figure:
It is also easy to define axis of aerodynamic force and then we may calculate aerodynamic momentum.
5. Points of interests
I've a heavy burden. It is my mind. I'm overloaded by ideas. I know that I cannot implement all my ideas into practice by myself. However I can unload myself for a bit.
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