Relaxation auto-oscillations in a fluidized bed / Tuponogov V. G.,Ryzhkov A. F.,Baskakov A. P.,Obozhin O. A. // THERMOPHYSICS AND AEROMECHANICS. - 2008. - V. 15, l. 4. - P. 603-616.

ISSN/EISSN:

0869-8643 / нет данных

Type:

Article

Abstract:

Oscillations of nonuniform fluidized bed in the slugging regime are considered. A nonlinear one-dimensional model of bed oscillations is developed and investigated, including the equations of the bed surface motion and the oscillations of the pressure drop in the bed for the phase of the surface ascent and for the phase of its fall. A quasi-discrete process of the gas escape from the layer with large bubble and the relaxation (discontinuous) type of oscillations of the bed surface and of the pressure, which are related to the above process, are shown based on the model analysis, the obtained numerical solutions, and the comparison with experiment.

Author keywords:

gas slugs; surface velocity; cavity on the surface; annular particle streak; voidage variation; Ergun equation; cycle of oscillations PRESSURE-FLUCTUATIONS; WAVES

DOI:

10.1007/s11510-008-0009-z

Web of Science ID:

ISI:000265443100009

Соавторы в МНС:

Другие поля

Поле	Значение
Month	DEC
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	PRESSURE-FLUCTUATIONS; WAVES
Research-Areas	Thermodynamics; Mechanics
Web-of-Science-Categories	Thermodynamics; Mechanics
Author-Email	tuponogov@mail.ustu.ru
ResearcherID-Numbers	Ryzhkov, Alexander/C-3477-2016
ORCID-Numbers	Ryzhkov, Alexander/0000-0002-0555-7196
Number-of-Cited-References	16
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	36
Journal-ISO	Thermophys. Aeromechanics
Doc-Delivery-Number	436VB