CAJ | 학술논문

基于求解 RANS方程的 CFD方法计算船舶在浮泥水域中航行的阻力；空气、水和浮泥之间的交界面通过 VOF 方法捕捉，浮泥的本构关系用改进的 Herschel-Bulkley 模型来描述。对数值计算和试验测量得到的KVLCC2船体阻力和浮泥应力-应变关系进行比较，验证了方法的有效性。基于KVLCC2船型在浮泥层上低速航行的流场模拟结果，分析了浮泥厚度对船舶阻力及水-浮泥交界面波动的影响，并对阻力变化机理作了初步的探讨。
기우구해 RANS방정적 CFD방법계산선박재부니수역중항행적조력；공기、수화부니지간적교계면통과 VOF 방법포착，부니적본구관계용개진적 Herschel-Bulkley 모형래묘술。대수치계산화시험측량득도적KVLCC2선체조력화부니응력-응변관계진행비교，험증료방법적유효성。기우KVLCC2선형재부니층상저속항행적류장모의결과，분석료부니후도대선박조력급수-부니교계면파동적영향，병대조력변화궤리작료초보적탐토。
The CFD method for solving RANS equations was applied to calculate the resistance of ship advancing in fluid mud layer. Air-water and water-mud interfaces were captured using the VOF method. The modified Herschel-Bulkley model was employed to describe the constitutive relation of fluid mud. The calculated resistance of the KVLCC2 hull form and rheological behavior of fluid mud were validated against experimental data. Based on the simulation results of KVLCC2 advancing in muddy area at low speed, the effect of mud thickness on ship resistance and the undulation of water-mud interface were investigated. The mechanism of variation in resistance was discussed briefly.