Internal recirculation flow structure in vertical upflow gas-solids suspensions part I. A core-annulus model

Internal recirculation flow structure in vertical upflow gas-solid suspensions part II. Flow structure predictions

International Journal of Multiphase Flow ◽

10.1016/s0301-9322(97)88544-8 ◽

1996 ◽

Vol 22 ◽

pp. 143-144

Author(s):

D Bai

Keyword(s):

Flow Structure ◽

Recirculation Flow ◽

Solid Suspensions

Get full-text (via PubEx)

Internal recirculation flow structure in vertical upflow gas-solid suspensions Part II. Flow structure predictions

Powder Technology ◽

10.1016/0032-5910(95)03011-w ◽

1995 ◽

Vol 85 (2) ◽

pp. 179-188 ◽

Cited By ~ 14

Author(s):

Dingrong Bai ◽

Jing-Xu Zhu ◽

Yong Jin ◽

Zhiquing Yu

Keyword(s):

Flow Structure ◽

Recirculation Flow ◽

Solid Suspensions

Get full-text (via PubEx)

CFD Analysis of Hypersonic Combustion of H2-Fueled Scramjet Combustor with Cavity Based Fuel Injector at Flight Mach 6

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.656.53 ◽

2014 ◽

Vol 656 ◽

pp. 53-63 ◽

Cited By ~ 3

Author(s):

Krishna Murari Pandey ◽

Sukanta Roga

Keyword(s):

Flow Structure ◽

Combustion Process ◽

Wave Pattern ◽

Combustion Efficiency ◽

Fuel Injector ◽

Recirculation Flow ◽

Scramjet Combustor ◽

Supersonic Mixing ◽

Stable Flame ◽

Scramjet Engine

This paper presents a numerical analysis of the inlet-combustor interaction and flow structure through a scramjet engine at a flight Mach 6 with cavity based injection. Fuel is injected at supersonic speed of Mach 2 through a cavity based injector. These numerical simulations are aimed to study the flow structure, supersonic mixing and combustion for cavity based injection. For the reacting cases, the shock wave pattern is modified which is due to the strong heat release during combustion process. The shock structure and combustion phenomenon are not only affected by the geometry but also by the flight Mach number and the trajectory. The inlet-combustor interaction is studied with a fix location of cavity based injection. Cavity is of interest because recirculation flow in cavity would provide a stable flame holding while enhancing the rate of mixing or combustion. The cavity effect is discussed from a view point of mixing and combustion efficiency.

Get full-text (via PubEx)

3D Numerical Combustion Simulation of Designed Low Heating Value Fuel Combustor for Further Detail Modulation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.268-270.494 ◽

2011 ◽

Vol 268-270 ◽

pp. 494-500

Author(s):

Jai Houng Leu

Keyword(s):

Flow Structure ◽

Near Field ◽

Simulation Method ◽

Flame Stabilization ◽

Temperature Factor ◽

Outlet Temperature ◽

Three Dimension ◽

Heating Value ◽

Recirculation Flow ◽

Combustion Simulation

This study applied three-dimension numerical combustion simulation method to design the specifications of a low heating value (LHV) fuel combustor. According to the discussion on design parameter system, quantity of main jets is the governing factor for flame stabilization of the primary combustor zone. Combustor outlet temperature factor improves with increase of load, and can be reduced to 0.33 under full load. However, load increase may slightly change recirculation flow structure and weaken flame stabilization. The findings showed that the combustion strength of near-field area greatly increased, and the recirculation flow structure center moved to the liner well when combustor used propane as fuel. This also caused deterioration of temperature factor.

Get full-text (via PubEx)