| Journal: | Ingeniería mecánica, tecnología y desarrollo |
| Database: | PERIÓDICA |
| System number: | 000455655 |
| ISSN: | 1665-7381 |
| Authors: | Bejan, Adrian1 |
| Institutions: | 1Duke University, Durham, Carolina del Norte. Estados Unidos |
| Year: | 2005 |
| Volumen: | 1 |
| Number: | 6 |
| Pages: | 195-201 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Teórico, analítico |
| English abstract | This is an introduction to the constructural theory of origin and generation of geometric form in all flow systems: the animate, the inanimate and the engineered. Constructural theory is based on the thought that is natural for currents to construct for themselves paths of least resistance. It is shown that this process of flow path optimization can be reasoned on the basis of principle: maximization of the global performance ubject to finite-size constraints. One example is the generation of three-shaped flow patterns, ass paths of least resistance between one point (source, sink) and on infinity of points (area, volume), as in the circulatory, respiratory and nervous systems. Another is the generation of regular spacings in heat generating volumes, such as swarms of honeybees. A third example is the distribution of of heat sources on a wall with maximum heat tranfer density. The optimized tree-flow geometries account for allometric laws e.g., the relationship between the total tube contact area and the body size, the proporcionality between breathing and heart beating times and body size raised to the power 1/4, and the proporcionality between the cruising speed of flying bodies (insects, birds, aieplanes) and body mass raised to the power 1/6. The optimized flow structures constitute robust designs, and robustness improves on the complexity of the system increases. Flow architectures that are more effcient look more natural |
| Disciplines: | Ingeniería |
| Keyword: | Alometría, Arquitectura digital, Diseño, Robustez, Sistemas de flujo, Teoría constructal |
| Keyword: | Allometry, Constructal theory, Design, Flow systems, Robustness, Digital architecture |
| Document request | |
