96/03737 Cold model simulation for cyclone siagging gasifier. 1. Flow pattern analysis of algebraic stress model

1996 ◽  
Vol 37 (4) ◽  
pp. 264
Keyword(s):  
Flow Pattern ◽  
Pattern Analysis ◽  
Model Simulation ◽  
Stress Model ◽  
Cold Model ◽  
Algebraic Stress Model

Predicting S-duct flow using a composite algebraic stress model

AIAA Journal ◽  
1998 ◽  
Vol 36 ◽  
pp. 327-335
Author(s):  
T. Jongen ◽  
G. Mompean ◽  
T. B. Gatski
Keyword(s):  
Stress Model ◽  
Duct Flow ◽  
Algebraic Stress Model

Solids Flow Pattern in the Bottom Zone of a Rectangular Cross-Section Circulating Fluidized Bed

2003 ◽  
Author(s):  
Hong-Shun Li ◽  
Yi-Jun Wang ◽  
Shi-Ping Jin
Keyword(s):  
Flow Pattern ◽  
Fluidized Bed ◽  
Cross Section ◽  
Quartz Sand ◽  
Circulating Fluidized Bed ◽  
Rectangular Cross Section ◽  
Temperature Response ◽  
Cold Model ◽  
Hot Particles ◽  
Bottom Zone

Solids flow pattern in the bottom zone of a rectangular cross-section CFB was investigated by using hot particles as the tracer. The experiments were carried out in a cold model circulating fluidized bed. The riser has an inner cross-section of 0.3 m by 0.5 m and a height of 5.8 m. The solids were returned into the riser at a height of 0.75 m above the air distributor within an angle of about 40 degree. Quartz sand was used as the bed material. The hot particles were also quartz sand but with a little smaller size. Specially designed miniature electrically heating devices were installed flush with the inner bed wall or inside the bed. At each run, about 10–15 cm3 hot particles were slowly pulled into the bed. The temperature response around the device was measured with four copper-constantan thermocouples. Based on the experimental results, a 3-D core-annulus model describing the solids flow pattern in the bottom zone of the CFB riser is proposed.

Explicit algebraic stress model of turbulence with anisotropic dissipation

AIAA Journal ◽  
1996 ◽  
Vol 34 (10) ◽  
pp. 2186-2189 ◽  
Author(s):  
Xiang-Hua Xu ◽  
Charles G. Speziale
Keyword(s):  
Stress Model ◽  
Algebraic Stress Model

scholarly journals A rate-dependent algebraic stress model for turbulence

1991 ◽  
Vol 15 (10) ◽  
pp. 516-524 ◽  
Author(s):  
Goodarz Ahmadi ◽  
Showkat J. Chowdhury
Keyword(s):  
Stress Model ◽  
Algebraic Stress Model ◽  
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