| Journal: | Revista mexicana de física |
| Database: | PERIÓDICA |
| System number: | 000363649 |
| ISSN: | 0035-001X |
| Authors: | Hubard, A1 Málaga, C2 Arce, H2 González, H2 |
| Institutions: | 1City University of New York, City College, Nueva York. Estados Unidos de América 2Universidad Nacional Autónoma de México, Facultad de Ciencias, México, Distrito Federal. México |
| Year: | 2012 |
| Season: | Oct |
| Volumen: | 58 |
| Number: | 5 |
| Pages: | 438-444 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, analítico |
| English abstract | We present a model equation describing the behavior of a density oscillator and a set of experiments to test the model. The system consists of a cup containing salty water with an orifice in its base, partially submerged in an outer vessel filled with fresh water. Such a setup produces an oscillatory flow of water through the orifice. The density oscillator is an oscillatory system that shares common features with more complex systems with a stable limit cycle. Although a Rayleigh equation has been used as a model equation for these systems, we propose a different approach based on the integration of the hydrodynamic equations on a streamline. The model reproduces the experimental oscillation and predicts the period as a function of the physical parameters. Phase resetting curves observed in experiments under external biphasic excitation can be reproduced by the model |
| Disciplines: | Física y astronomía, Química |
| Keyword: | Dinámica de fluidos, Fisicoquímica y química teórica, Oscilador de densidad, Oscilador salino, Osciladores no lineales, Hidrodinámica |
| Keyword: | Physics and astronomy, Chemistry, Fluid dynamics, Physical and theoretical chemistry, Density oscillator, Saline oscillator, Nonlinear oscillators, Hydrodynamics |
| Full text: | Texto completo (Ver PDF) |
