1) drag model
曳力模型
1.
The drag model which is a key parameter that represents the interaction of gas-solid two-phase has been discussed.
为了准确模拟中温烟气脱硫的循环流化床(CFB)反应器内的脱硫过程,本文首先采用欧拉双流体方法研究了床内的稠密气固两相流动,讨论了表征气固两相相互作用的关键参数—曳力模型,并对适于均匀流动的经典曳力模型进行了颗粒团聚所致的非均匀效应的修正。
2.
The results predicted by EMMS drag model showed the best agreement with the experimental axial average pressure drop and apparent solid volume fraction due to the cluster.
根据EMMS(energy minimization multi-scale)理论提出了改进的曳力修正表达式,同时与传统的曳力模型如Gidaspow,O\'Brien-Syamlal,Koch-Hill-Ladd的计算结果进行了比较。
2) evaporation drag model
蒸发曳力模型
3) Syamlal-O`Brien drag model
Syamlal-O'Brien曳力模型
1.
The small size hydrogen-oxygen catalytic combustion fluidized bed reactor with low gas density and flux,as well as radioactive,small granularity of catalyst were studied improving the Syamlal-O`Brien drag model in the Euler-Euler multifluid model.
针对氢氧催化燃烧流化床反应器尺寸小、气体密度低并具有放射性、气流量小、催化剂粒度小等特点,改进了欧拉-欧拉多相流模型中的Syamlal-O`Brien曳力模型,从而实现了均匀布气氢氧催化燃烧流化床反应器的流体力学模型的模拟,得到了该气固流化床的流化形态,计算结果与文献结果吻合性好,所采用的模型和数值方法具有较高可靠性。
4) towed-model
模型拖曳
5) Improved evaporation drag model
修正的蒸发曳力模型
6) drag force
曳力
1.
In published papers,there are some problems such as: neglecting the drag force of gas,choosing the improper density and using irrelevantly the drag force formula,so the difference between calculation and practice is large.
目前,文献在计算料流轨迹时存在忽略煤气曳力、密度选择不当或曳力公式使用有误等问题,与实际计算常有很大偏差。
2.
The drag force and position of the particle in the filter layer was related by Stokes law in this paper.
本文利用Ｓｔｏｋｅｓ定律关联了滤芯层中微粒的曳力与位置的关系，按颗粒与孔道壁面摩擦阻力大于曳力的去除条件，计算了两种不同流向时滤芯截除微粒临界直径之比。
3.
The flow over a stationary spherical particle was analyzed numerically to analyze the effect of the turbulent parameters (turbulence intensity and turbulence length scale) on the drag force.
发现湍流尺度的变化对曳力系数的影响比较小 ,只是在小尺度条件下存在一定影响 ;而湍流度对颗粒曳力系数产生较大的增强作用 ,尤其在小颗粒Rep 条件下。
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说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条