干旱区生态环境知识资源中心(Arid): 弯管仿生耐磨方法数值模拟

Arid

	弯管仿生耐磨方法数值模拟
其他题名	Numerical simulation of bionic method for improving property of elbow erosion resistance
	季楚凌; 李长俊; 马树锋; 陈磊
来源期刊	中南大学学报. 自然科学版
ISSN	1672-7207
出版年	2016
卷号	47 期号:10 页码:3582-3589
中文摘要	仿照沙漠蝎子、蜥蜴等体表的耐磨形态,建立仿生形态表面加厚弯管物理模型,并将计算流体动力学理论与冲蚀磨损理论相结合,运用Fluent软件对光滑内壁及横槽、纵槽和凹坑3种仿生内壁弯管的冲蚀磨损情况进行模拟研究,并进一步分析颗粒运动参数来解释仿生内壁的减磨机理。研究结果表明:在相同条件下,采用仿生表面可以显著提高弯管的耐磨性,且不同表面形态加厚弯管的耐磨性能由大到小依次为横槽形、纵槽形、凹坑形、光滑形;在颗粒运动参数方面,使用仿生表面可以减弱颗粒的冲击动能,并改变颗粒与壁面间的冲蚀磨损角,从而达到减磨的效果,而横槽形内壁弯管的耐磨性最好。
英文摘要	The physical models of bionic surface thickened elbow were established according to the erosion resistance surfaces of desert scorpion and lizard. Mathematic model was also set up based on the combined technologies of computational fluid dynamics and erosion theory. The erosion situation of elbows with smooth inner wall, horizontal-slot bionic inner wall, vertical-slot bionic inner wall and concave bionic inner wall was studied by Fluent software. Particle motion parameters were further analyzed to explain the mechanism of reducing erosion by using bionic inner wall. The results show that the property of elbow erosion resistance can be improved significantly by using bionic surface thickened plate under the same condition, and the descending order in terms of property of elbow erosion resistance is as follows: horizontal-slot inner wall, vertical-slot inner wall, concave inner wall, smooth inner wall. In the aspect of particle motion parameters, bionic surface can weaken the impact energy of particles and change erosion angle between the particle and the wall, so as to reduce erosion. Moreover, the erosion resistance property of horizontal-slot elbow is optimal.
中文关键词	弯管 ; 气固两相流 ; 冲蚀磨损 ; 仿生表面 ; 耐磨性 ; Fluent软件
英文关键词	elbow gas-solid two-phase flow erosion bionic surface property of erosion resistance fluent software
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENERGY FUELS
WOS研究方向	Energy & Fuels
CSCD记录号	CSCD:5853159
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235556
作者单位	西南石油大学石油与天然气工程学院, 成都, 四川 610500, 中国
推荐引用方式 GB/T 7714	季楚凌,李长俊,马树锋,等. 弯管仿生耐磨方法数值模拟[J],2016,47(10):3582-3589.
APA	季楚凌,李长俊,马树锋,&陈磊.(2016).弯管仿生耐磨方法数值模拟.中南大学学报. 自然科学版,47(10),3582-3589.
MLA	季楚凌,et al."弯管仿生耐磨方法数值模拟".中南大学学报. 自然科学版 47.10(2016):3582-3589.