【作者】 吕海宁； 杨建民； 彭涛；

【Author】 LU Hai-ning, YANG Jian-min, PENG Tao (The State Key Laboratory of Ocean Engineering, Shanghai Jiaotong University, Shanghai 200030, China)

【机构】 上海交通大学海洋工程国家重点实验室；

【摘要】 海洋深水试验池的造流系统是深水池设计和建设的关键技术之一,其设计水平直接决定了水池能否正确模拟深海海洋环境,以及水池开展海洋工程深水试验研究的能力。本文结合上海交通大学设计建造中的海洋深水试验池,通过CFD计算,对水池内整体流场进行了数值模拟,以研究流速和压力分布等流场特性。计算结果表明,设置在进水和出水廊遒内的穿孔压力墙是深水造流系统中的关键整流设备,可使水池内的流速实现均匀分布。此外,穿孔压力墙表面的粗糙度大小也会对水池内流场产生显著影响。数值模拟的结果为海洋深水试验池的设计和建造提供了参考。更多还原

【Abstract】 The design of current generating system is the key technology of the deepwater offshore basin. It determines the capability of the basin to model deep ocean environment correctly and conduct ocean engineering model test in deep water. In this paper the current generating system of the deepwater offshore basin in Shanghai Jiao Tong University is simulated numerically using CFD method. And the characteristics of the flow field in the basin, such as distributions of current velocities and pressures, are computed and analyzed. It is shown that the perforated wall is the crucial component to improve the flow field uniformity in the basin. In addition the roughness of the perforated wall also has significant influences on current velocity distributions and pressure losses. The computation results could be applied to the design and construction of the deepwater offshore basin.更多还原