【摘要】 本文采用CFD技术进行球鼻首设计与优化。CFD方法可准确模拟船体绕流流场,预报船体阻力。经过方案设计与优选,水滴型球首数值计算减阻效果接近6%,船模试验减阻效果超过3%,表明采用CFD方法可预报高雷诺数下的船舶阻力,是船舶性能优化的前沿技术。更多还原

【Abstract】 Based on CFD approach, a scheme is proposed for bulbous bow design and optimization. The streaming field around the hull is precisely simulated and the resistance is accurately predicted. The drag reduction by the recommended bulbous bow could come to 6% while 3% is obtained by the model resistance test. It is demonstrated that CFD approach should be appropriately applied to resistance prediction in high Re number and it should be an advanced technique for hull form optimization.更多还原