Comparative Analysis of the Separation Variation Influence on the Hydrodynamic Performance of a High Speed Trimaran  

片体间距对高速三体船水动力性能影响的比较分析(英文)

作　　者：Khaled Hafez Abdel-Rahman El-Kot 

机构地区：[1]Department of Naval Architecture and Marine Engineering, Faculty of Engineering, Alexandria University

出　　处：《Journal of Marine Science and Application》2011年第4期377-393,共17页船舶与海洋工程学报（英文版）

摘　　要：This paper numerically investigates the influence of separation variation of the outriggers on the hydrodynamic performance of a high speed trimaran （HST） aiming at improving its applicability in diverse realistic disciplines. The present investigation was performed within the framework of the 2-D slender body method （SBM） by calculating the resistance of three symmetric trimaran series moving in a calm free surface of deep water. Each trimaran series comprises of 4681 configurations generated by considering 151 staggers （-50%≤a≤＋ 100%）, and 31 separations （100%≤β≤400%） for 81 Froude numbers （0.20≤Fn≤ 1.0）. In developing the three trimaran series, Wigley-st. AMECRC-09, and NPL-4a models were used separately for both the main and side hulls of each individu;d series models. A computer macro named Tri-PL was created using the Visual Basic for Applications~. Tri-PL~ sequentially interfaced Maxsurfe then Hullspeed to generate the models of the three trimaran series together with their detailed hydrostatic particulars, followed by their resistance components. The numerical results were partially validated against the available published numerical calculations and experimental results, to benchmark the Tri-PL macro and hence to rely on the analysis outcomes. A graph template was creaLed within the framework of SigmaPlot to visualize the significant results of the Tri-PL properlv.

关 键 词：high speed trimaran （HST） hydrodynamic interference factor （HIF） trimaran hydrodynamicperformance separation of outriggers 

分 类 号：U661.1[交通运输工程—船舶及航道工程]