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error rates were observed in the validation comparisons. Finally, the effects of magnetic field and radiation parameters and nanofluid volume fraction on the velocity, skin friction coefficient... u0 Inlet velocity, m/s K* Mean absorption coefficient, m–1 B Magnetic field, kg/(s2·A) Nu Nusselt number Greek symbols δ Dimensionless viscosity of non-Newtonian flow η Dimensionless form of distance......
is in the form where and represent the radial and axial components of velocity. Further radial magnetic field is applied. It is taken in the form: The Lorentz force is  ... and consequently axial velocity increases. Figure 3 shows the magnetic field effect on velocity. As expected, the velocity decreases in presence of magnetic field due to the retarding nature of magnetic......
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of the stress field at the crack tip is affected by the crack propagation velocity, in order to achieve the dynamic propagation toughness of rock specimens, it is necessary to determine the crack... generated by the fracture was collected by acoustic emission (AE) system. At the same time, crack propagation gauge (CPG) was used to measure the crack propagation velocity of the specimen. The results......
and more continuous transfer film, which results in a low wear rate and friction coefficient of the Cu-WS2 composites. Key words: Cu-WS2 composites; mechanical properties; wear rate; friction coefficient; continuous transfer film; spark plasma sintering 1 Introduction Copper-based composites containing the solid lubricants have been widely used in many applications, such as brushes, contact strips......
Phase field model for strong anisotropy of kinetic and highly anisotropic interfacial energy ZHANG Guo-wei(张国伟), HOU Hua(侯 华), CHENG Jun(程 军) Department of Materials and Science Engineering, North University of China, Taiyuan 030051, China Received 20 April 2006; accepted 30 June 2006 Abstract: A phase-field model was established for simulating pure materials, which was calculated......
in continuous casting process and which has a bad effect on the quality of the late plate. A vector synthesis method of measuring magnetic field was used. By the finite element simulation... and improves product structure. Finally, surface quality defect of casting blanks caused by the disorder of the flow field was explored. Key words: aluminum melt; magnetic leakage; Hazelett continuous casting......
幅磁场的感应热功率(Q_1和Q_2)之间,在Q_1和Q_2确定后,调幅磁场的感应热功率取决于各自作用时间T_1和T_2的相对比例;正弦波调幅磁场产生的感应热功率是高频磁场调幅前感应热功率的62%~64%. 关键词:电磁连铸; 高频磁场; 调幅; 感应热; 表面温度; electromagnetic continuous casting; high frequency electromagnetic field; amplitude modulation; induction heat; surface temperature; [全文内容正在添加中] ......
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, KAO J H. Underwater acoustic field and pressure fluctuation on ship hull due to unsteady propeller sheet cavitation[J]. Journal of Marine Science and Technology, 2011, 16(3): 241-253. [3] 李 勇, 李太江, 李 巍.... ZUO Xiao-ting, YAO Ping-ping, GONG Tai-min, XIAO Ye-long, ZHANG Zhong-yi, ZHAO Lin, ZHOU Hai-bin. Effect of WC size on corrosion resistance of WC-10Co-4Cr coatings by high velocity oxygen fuel[J......