Laws governing gas-bubble motion in a fluidized bed

1978 ◽  
Vol 34 (3) ◽  
pp. 270-276 ◽  
Author(s):  
Yu. S. Teplitskii ◽  
A. I. Tamarin
Keyword(s):  
Fluidized Bed ◽  
Gas Bubble ◽  
Bubble Motion

The pressure field around a two-dimensional gas bubble in a fluidized bed

1973 ◽  
Vol 28 (12) ◽  
pp. 2231-2243 ◽  
Author(s):  
Howard Littman ◽  
George A.J. Homolka
Keyword(s):  
Fluidized Bed ◽  
Pressure Field ◽  
Gas Bubble ◽  
Two Dimensional

406 Control of bubble motion in fluidized bed by gas distributor and gas pulsation

2005 ◽  
Vol 2005.80 (0) ◽  
pp. _4-11_-_4-12_
Author(s):  
Hitoshi ARAKI ◽  
Toshihiro KAWAGUCHI ◽  
Yutaka TSUJI
Keyword(s):  
Fluidized Bed ◽  
Bubble Motion ◽  
Gas Distributor

Growth of gas bubbles in the biotissues with convective acceleration

2014 ◽  
Vol 07 (06) ◽  
pp. 1450072 ◽  
Author(s):  
S. A. Mohammadein ◽  
K. G. Mohamed
Keyword(s):  
Concentration Distribution ◽  
Bubble Dynamics ◽  
Ambient Pressure ◽  
Growth Stages ◽  
Gas Bubble ◽  
Bubble Motion ◽  
Dissolved Gas ◽  
Diffusion Limited ◽  
The Mathematical Model ◽  
Dominant Parameter

This paper presents formulae and explanation about the growth of a convective gas bubble in the blood and other tissues of divers who surface too quickly, concentration distribution around the growing bubble is also presented. The formulae are valid all over the growth stages, i.e. under variable ambient pressure while the diver is ascending, and under constant ambient pressure at diving stops or at sea level. The mathematical model is solved analytically by using the method of combined variables. The growth process is affected by tissue diffusivity, concentration constant and the initial void fraction, which is the dominant parameter. Results show that, the time of the complete growth, in the convective growth model, is shorter than those earlier presented by Mohammadein and Mohamed [Concentration distribution around a growing gas bubble in tissue, Math. Biosci.225(1) (2010) 11–17] and Srinivasan et al. [Mathematical models of diffusion-limited gas bubble dynamics in tissue, J. Appl. Physiol.86 (1999) 732–741] for the growth of a stationary gas bubble, this explains the effect of bubble motion on consuming the oversaturated dissolved gas from the tissue into growing bubble which leads to increment in the growth rate to be more than those presented in the previous stationary models.

Gas Bubble Motion Artifact in MDCT

2008 ◽  
Vol 190 (2) ◽  
pp. 294-299 ◽  
Author(s):  
Franklin Liu ◽  
Carlos Cuevas ◽  
Albert A. Moss ◽  
Orpheus Kolokythas ◽  
Theodore J. Dubinsky ◽  
...  
Keyword(s):  
Motion Artifact ◽  
Gas Bubble ◽  
Bubble Motion

scholarly journals Finite-sized gas bubble motion in a blood vessel: Non-Newtonian effects

2008 ◽  
Vol 78 (3) ◽  
Author(s):  
Karthik Mukundakrishnan ◽  
Portonovo S. Ayyaswamy ◽  
David M. Eckmann
Keyword(s):  
Blood Vessel ◽  
Gas Bubble ◽  
Bubble Motion

Gas Bubble Motion Artifact

2008 ◽  
Vol 191 (6) ◽  
pp. W312-W312
Author(s):  
Donald J. Emby ◽  
Kevin C. Ho
Keyword(s):  
Motion Artifact ◽  
Gas Bubble ◽  
Bubble Motion
Sign in / Sign up

Export Citation Format

Share Document