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Tingting DU, Wenjing DU
《工程管理前沿(英文)》 2019年 第6卷 第1期 页码 70-77 doi: 10.1007/s42524-019-0005-8
The characteristics of flow and heat transfer of shell-and-tube heat exchangers with overlapped helical baffles (STHXsHB) were illustrated through a theoretical analysis and numerical simulation. The ideal helical flow model was constructed to demonstrate parts of the flow characteristics of the STHXsHB, providing theoretical evidence of short-circuit and back flows in a triangular zone. The numerical simulation was adopted to describe the characteristics of helical, leakage, and bypass streams. In a fully developed section, the distribution of velocity and wall heat transfer coefficient has a similar trend, which presents the effect of leakage and bypass streams. The short-circuit flow accelerates the axial velocity of the flow through the triangular zone. Moreover, the back flow enhances the local heat transfer and causes the ascent of flow resistance. This study shows the detailed features of helical flow in STHXsHB, which can inspire a reasonable optimization on the shell-side structure.
关键词: heat exchanger overlapped helical baffle triangular zone helical flow
Hakan T TURKER
《结构与土木工程前沿(英文)》 2022年 第16卷 第8期 页码 1017-1028 doi: 10.1007/s11709-022-0871-8
关键词: testing apparatus & methods plain concrete tensile properties biaxial flexural strength triangular plate method
Jinghua XU, Hongsheng SHENG, Shuyou ZHANG, Jianrong TAN, Jinlian DENG
《机械工程前沿(英文)》 2021年 第16卷 第1期 页码 133-150 doi: 10.1007/s11465-020-0610-6
关键词: surface accuracy optimization multiple circular holes additive manufacturing (AM) part build orientation triangular fuzzy number (TFN) digital twins
Torsional behavior of triangular web profile (TRIWP) steel section by experimental study
Fatimah DE’NAN,Hazwani HASAN,Mohd Hanim OSMAN,Sariffudin SAAD
《结构与土木工程前沿(英文)》 2016年 第10卷 第4期 页码 409-419 doi: 10.1007/s11709-016-0358-6
关键词: corrugated web i-beam non uniform steel section torsion resistance torsion angle triangular web profile steel section
Applying the multi-zone model in predicting the operating range of HCCI engines
Ming JIA, Maozhao XIE, Zhijun PENG,
《能源前沿(英文)》 2010年 第4卷 第3期 页码 414-423 doi: 10.1007/s11708-010-0108-8
关键词: homogeneous charge compression ignition (HCCI) engine multi-zone operating range
Guizhong XIE, Fenglin ZHOU, Hao LI, Xiaoyu WEN, Fannian MENG
《机械工程前沿(英文)》 2019年 第14卷 第3期 页码 332-341 doi: 10.1007/s11465-019-0540-3
关键词: Taylor expansion crack front elements stress intensity factors dual boundary element method
射线与三角Bézier曲面交点的混合裁剪算法 Article
Yan-hong LIU,Juan CAO,Zhong-gui CHEN,Xiao-ming ZENG
《信息与电子工程前沿(英文)》 2016年 第17卷 第10期 页码 1018-1030 doi: 10.1631/FITEE.1500390
Sattar MALEKI, Roham RAFIEE, Abolfazl HASANNIA, Mohammad Reza HABIBAGAHI
《结构与土木工程前沿(英文)》 2019年 第13卷 第6期 页码 1316-1323 doi: 10.1007/s11709-019-0555-1
关键词: delamination composite pipes stiffness test cohesive zone method
邓运华
《中国工程科学》 2011年 第13卷 第10期 页码 13-18
辽东带系指渤海辽中凹陷的东部陡坡带及辽东凸起,被辽中及辽东凹陷所夹持。辽东带油源条件好,东营组储—盖条件优越,断鼻、断块圈闭发育。但在2002年之前的15年内,国内外公司在辽东带进行了长期研究和勘探,钻了12口探井,没有发现商业油气田。经过对辽东带油气地质条件3年的深入研究,对每口失利井原因进行了再次分析,认识到该带发育东营组及沙河街组两套主力成藏组合,控制东营组成藏的主要因素是油气运移,而沙河街组能否成藏关键是储层。在此认识指导下选择研究方向,评价有利目标,经钻探发现了金县1-1大油田,储量达1.5×108 m3,充分显示了科研在油气勘探中的作用。
Luthfi Muhammad MAULUDIN, Chahmi OUCIF, Timon RABCZUK
《结构与土木工程前沿(英文)》 2020年 第14卷 第3期 页码 792-801 doi: 10.1007/s11709-020-0629-0
关键词: self-healing concrete interfacial zone capsule materials cohesive elements fracture maps
Experimental investigation and design of aluminum columns with longitudinal welds
Yun WU, Qilin ZHANG
《结构与土木工程前沿(英文)》 2011年 第5卷 第3期 页码 366-373 doi: 10.1007/s11709-011-0101-2
关键词: aluminum alloy longitudinal weld heat-affected zone (HAZ) reduced strength zone (RSZ) buckling column experimental study
Cohesive zone model-based analyses of localized leakage of segmentally lined tunnels
《结构与土木工程前沿(英文)》 2023年 第17卷 第4期 页码 503-521 doi: 10.1007/s11709-023-0927-4
关键词: segmentally lined tunnel localized leakage cohesive element hydraulic behavior numerical modeling
Simulation of cottonseed cake melt flow in metering zone of a single screw extruder
Hong HE, Jianguo ZHOU,
《化学科学与工程前沿(英文)》 2010年 第4卷 第3期 页码 263-269 doi: 10.1007/s11705-009-0276-4
关键词: quasi-three-dimensional rheological viscosity processing influence
冷振东,卢文波,严鹏,陈明,胡英国
《中国工程科学》 2014年 第16卷 第11期 页码 28-35
合理的炸药-岩石匹配关系对于提高炸药能量的有效利用率和改善破碎效果有着重要意义。传统上强调的波阻抗匹配理论并不合理,文章从爆破破碎机理出发,提出了一种岩石-炸药匹配的新方法,在保证相邻炮孔间岩石充分破碎的前提下,通过对粉碎区的合理控制来确定钻孔爆破最优的炸药性能参数。该方法可以直观地反映爆破破碎效果及能量有效利用率,可操作性强。考虑相邻炮孔爆炸荷载的联合作用,修正了钻孔爆破破坏分区计算模型。在此基础上,针对具体工程目标给出了混装炸药耦合装药条件下不同等级岩石的炸药性能匹配参数。
A modified zone model for estimating equivalent room thermal capacity
Hua CHEN, Xiaolin WANG
《能源前沿(英文)》 2013年 第7卷 第3期 页码 351-357 doi: 10.1007/s11708-013-0254-x
关键词: room model thermal network analysis transfer function heating ventilation and air conditioning (HVAC) system simulation
标题 作者 时间 类型 操作
Characteristics of flow and heat transfer of shell-and-tube heat exchangers with overlapped helical baffles
Tingting DU, Wenjing DU
期刊论文
Effect of size on biaxial flexural strength for cement-based materials by using a triangular plate method
Hakan T TURKER
期刊论文
accuracy optimization of mechanical parts with multiple circular holes for additive manufacturing based on triangular
Jinghua XU, Hongsheng SHENG, Shuyou ZHANG, Jianrong TAN, Jinlian DENG
期刊论文
Torsional behavior of triangular web profile (TRIWP) steel section by experimental study
Fatimah DE’NAN,Hazwani HASAN,Mohd Hanim OSMAN,Sariffudin SAAD
期刊论文
Applying the multi-zone model in predicting the operating range of HCCI engines
Ming JIA, Maozhao XIE, Zhijun PENG,
期刊论文
A family of non-conforming crack front elements of quadrilateral and triangular types for 3D crack problems
Guizhong XIE, Fenglin ZHOU, Hao LI, Xiaoyu WEN, Fannian MENG
期刊论文
delamination on the stiffness of composite pipes under compressive transverse loading using cohesive zone
Sattar MALEKI, Roham RAFIEE, Abolfazl HASANNIA, Mohammad Reza HABIBAGAHI
期刊论文
effects of mismatch fracture properties in encapsulation-based self-healing concrete using cohesive-zone
Luthfi Muhammad MAULUDIN, Chahmi OUCIF, Timon RABCZUK
期刊论文
Experimental investigation and design of aluminum columns with longitudinal welds
Yun WU, Qilin ZHANG
期刊论文
Simulation of cottonseed cake melt flow in metering zone of a single screw extruder
Hong HE, Jianguo ZHOU,
期刊论文