http://www.seipub.org/mef/RSS.aspxen-US2016-0<p class="abstract">PIV Experimental Study on the Characteristics of Non-Newtonian Fluid in Wavy-walled Tubes for Pulsatile Flow</p><ul><li>Pages 1-6</li><li>Author Yongning BianJing RenDonghui ZhuLiang Zhan</li><li>Abstract Flow state is of great importance for the study of heat and mass transfer. Then, the flow state of a non-Newtonian fluid in several wavy-walled tubes for pulsatile flow is presented using particle image velocimetry (PIV) technique. The non-Newtonian fluid used is CMC solution with 700 ppm concentration. It can be found that higher amplitude of the tubes and larger Strouhal number are, the phase of pulsation period moves more apparently. Besides, based on the flow characteristics of the fluid in several wavy-walled tubes with different size, amplitude has more influence on the flow structure than wavy length. The better effect of heat and mass transfer can be obtained when the fluid in the wavy-walled tube with 2.5mm amplitude.</li></ul>http://www.seipub.org/mef/PaperInfo.aspx?ID=36341Marine Engineering Frontiershttp://www.seipub.org/mef/PaperInfo.aspx?ID=363412016-0<p class="abstract">Numerical Calculation and Aerodynamic Analysis of Wing Sail Circling Flow</p><ul><li>Pages 7-16</li><li>Author Yihuai HuDa-yong YANGYan-yan L</li><li>Abstract This paper firstly makes aerodynamic calculation of sail wing with steady numerical method. The calculation zone, mesh generation, boundary condition and algorithm for the calculation are introduced. The calculated results are analyzed, which reveals the circling flow separation and unsteady phenomenon of the sail wing around. The numerical calculation was carried out again with an unsteady numerical method. The calculated results are compared against the precious results, which fourthly improves the unsteady phenomenon of the sail wing and lays the substantial foundation of the stability calculation for sail-assisted ship.</li></ul>http://www.seipub.org/mef/PaperInfo.aspx?ID=36342Marine Engineering Frontiershttp://www.seipub.org/mef/PaperInfo.aspx?ID=363422016-0<p class="abstract">Sensitivity Analysis on Fatigue Crack Assessment of Welded Joint Based on FADs</p><ul><li>Pages 17-23</li><li>Author SHILUN ZHAOCHAOHE CHE</li><li>Abstract Several sensitivity factors are significant on the assessment of a flawed Jacket platform. In a certain case of welded joint study, the existing fatigue cracks are put into a numerical test on sensitivity analysis of factors that affect the propagation of cracks in the offshore welded assembly which is fixed into the seabed. The analysis showed that the order of hot spot stress range and the load cycle, which play essential roles in the growth of fatigue cracks, are significant and should be taken into consideration throughout the assessment process. Finally it is concluded that the method (based on FADs, Failure Assess Diagrams) of the assessment on calculating remaining life of fatigue cracks is practical and efficient. Moreover this paper also performed a two stages crack propagation and had relevant discussion based on this growth.</li></ul>http://www.seipub.org/mef/PaperInfo.aspx?ID=36343Marine Engineering Frontiershttp://www.seipub.org/mef/PaperInfo.aspx?ID=36343