Numerical Research on Combustion Flow Field in Li/SF6 Surface Injection Reactor

2015 ◽  
Author(s):  
Chunliang Zhou
Keyword(s):  
Flow Field ◽  
Numerical Research ◽  
Combustion Flow

Absorption Model of Wavelength Modulation Spectroscopy in Combustion Flow Field

2019 ◽  
Vol 46 (7) ◽  
pp. 0711001
Author(s):  
张步强 Buqiang Zhang ◽  
许振宇 Zhenyu Xu ◽  
刘建国 Jianguo Liu ◽  
夏晖晖 Huihui Xia ◽  
聂伟 Wei Nie ◽  
...  
Keyword(s):  
Flow Field ◽  
Wavelength Modulation Spectroscopy ◽  
Absorption Model ◽  
Wavelength Modulation ◽  
Modulation Spectroscopy ◽  
Combustion Flow

scholarly journals Research on combustion flow field imaging method based on ray casting algorithm

AIP Advances ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 055022 ◽  
Author(s):  
Min Yao ◽  
Yueqi Zhang ◽  
Min Zhao ◽  
Ruipeng Guo ◽  
Jun Xu
Keyword(s):  
Flow Field ◽  
Imaging Method ◽  
Ray Casting ◽  
Combustion Flow ◽  
Ray Casting Algorithm ◽  
Field Imaging

Feature-Section-Criterion for Predicting Lean Blowout and Comparison Research

2013 ◽  
Author(s):  
Zhibo Zhang ◽  
Hongtao Zheng ◽  
Honglei Yang ◽  
Ren Yang ◽  
Qian Liu ◽  
...  
Keyword(s):  
Experimental Data ◽  
Flow Field ◽  
New Method ◽  
Engineering Applications ◽  
Lean Blowout ◽  
Comparison Research ◽  
Annular Combustor ◽  
Combustion Flow ◽  
Feature Section

Lean blowout (LBO) plays an important role in combustor performance. A new method named Feature-Section-criterion (FSC) for predicting the LBO of annular combustor has been put forward and expounded in this paper. A CFD software FLUENT has been used to simulate the combustion flow field of an annular combustor. The process of blowout and effects of flow split among swirlers and primary holes have been researched by using of FSC. The result shows that the predictions of FSC are in agreement with corresponding experimental data. So this method for predicting lean blowout is reliable and can be used for engineering applications.

Numerical Research on Flow Field Characteristics within the Slipstream of a Propeller

2012 ◽  
Vol 224 ◽  
pp. 55-60
Author(s):  
Zhong Zhe Duan ◽  
Pei Qing Liu ◽  
Li Chuan Ma
Keyword(s):  
Flow Field ◽  
Three Dimensional ◽  
Scientific Basis ◽  
Disk Model ◽  
Actuator Disk ◽  
Numerical Result ◽  
Light Load ◽  
Strip Theory ◽  
Flow Field Characteristics ◽  
Numerical Research

Numerical research on three dimensional flow field of a propeller and actuator disk model have been made. Under design conditions (headway 66.889m/s, revolving velocity 2575rpm）, the Slipstream flow field after Propeller is solved by RANS equations with structure mesh. Chosen 12 million mesh through verification of reliability analysis. The numerical result consists of the flow field and vortex field in the propeller slipstream. With comparison to the calculation result of standard strip theory and actuator disk model, it is shown that for light load propeller with the side small contraction of slipstream, in the slipstream cross section after 0.6R away from downstream of propeller rotation plane, the axial, circular and radial induced velocity coefficient by Prandtl’s blade tip corrected standard strip theory result; three dimensional flows numerical simulation and actuator disk model are well consistent. It verified the correctness of standard strip theory and also provided scientific basis for the correction of actuator disk model

scholarly journals Parametric effects on the combustion flow field of a typical strut-based scramjet combustor

2011 ◽  
Vol 56 (35) ◽  
pp. 3871-3877 ◽  
Author(s):  
Wei Huang ◽  
ZhenGuo Wang ◽  
ShiBin Luo ◽  
Jun Liu
Keyword(s):  
Flow Field ◽  
Scramjet Combustor ◽  
Parametric Effects ◽  
Combustion Flow

Numerical Research on 3-D Flow Field in 5×5 Rod Bundles With Spacer Grids

2010 ◽  
Author(s):  
Rui-feng Tian ◽  
Xiao-hui Mao ◽  
Pu-zhen Gao ◽  
Xiao-jun Wang
Keyword(s):  
Flow Field ◽  
Single Phase ◽  
Mass Conservation ◽  
Momentum Conservation ◽  
Rod Bundles ◽  
Experiment Data ◽  
Spacer Grids ◽  
Simplec Algorithm ◽  
Numerical Research ◽  
Hybrid Grids

3-D single-phase flow field in 5×5 rod bundles with spacer grids was studied by numerical method. Using hybrid grids technique, SST k-ω model and SIMPLEC algorithm, the Reynolds averaged mass conservation and momentum conservation equations were solved, and the pressure and velocity field were obtained. The simulation results show that the spacer grids leads to intense lateral flow in rod bundles channel, and it submitted parabola distributing raw; axial velocities were distributed uniformly in the channel; drag coefficient decreased as inlet Reynolds number increased. Calculated results agreed with experiment data well, it shows that numerical methods employed in this paper is suitable to study flow field in 5×5 rod bundles.

scholarly journals Temperature measurement in combustion flow field with femtosecond laser-induced filament

2020 ◽  
Vol 69 (23) ◽  
pp. 234207
Author(s):  
Shuai-Yao Li ◽  
Da-Yuan Zhang ◽  
Qiang Gao ◽  
Bo Li ◽  
Yong He ◽  
...  
Keyword(s):  
Flow Field ◽  
Femtosecond Laser ◽  
Temperature Measurement ◽  
Combustion Flow

scholarly journals A Preliminary Calculation of the Combustion Recirculating Flow Behind Flame-Holders

1985 ◽  
Author(s):  
C. F. Zeng ◽  
J. X. Zhao ◽  
Z. T. Ding
Keyword(s):  
Flow Field ◽  
Equivalence Ratio ◽  
Variable Density ◽  
Combustion Model ◽  
Preliminary Calculation ◽  
Flame Spreading ◽  
Inlet Velocity ◽  
Recirculating Flow ◽  
Combustion Flow ◽  
Recirculation Length

In this paper the numerical method is adopted to predict the combustion recirculating flow behind flame-holders. A modified k-ε turbulence model and Magnussen’s combustion model are employed. Becouse of the large variation of density in combustion flow field, the influences of variable density have been considered. The results predicted include: the combustion recirculating flow field and the flame spreading; the variation of recirculation length with equivalence ratio, and inlet velocity, etc. All of these are qualitatively good comparing with experimental results.

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