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Scientists investigate marine heatwaves and shifting ocean currents（图）
Scientists investigate marine heatwaves shifting ocean currents
2020/10/10
North America experienced a series of dangerous heatwaves during the summer of 2020, breaking records from coast to coast.In the ocean, extreme warming conditions are also becoming more frequent and i...
近日，海洋工程领域权威期刊《Marine Structure》在线发表了我院陈达教授团队的研究成果“Static and dynamic loading behavior of a hybrid foundation for offshore wind turbines”。论文针对海上风电机组及其基础结构的荷载特点，提出了一种新型桩-桶复合基础结构型式，并对整体结构在风浪流耦合作用下的静动力特性、...
A comparative study of carbon dioxide degassing in river- and marine-dominated estuaries
carbon dioxide degassing river- and marine-dominated estuaries
2014/4/18
The partial pressure of carbon dioxide (pCO2), concentration of total dissolved inorganic carbon, and total alkalinity were measured at both high tide and low tide in the surface water of three Georgi...
Valuable mineral resources are widely distributed throughout the seabed. autonomous underwater vehicles (AUVs) are preferable to remotely-operated vehicles (ROVs) when probing for such mineral resources as the extensive exploration area makes it difficult to maintain contact with operators. AUVs depend on batteries, so their power consumption should be reduced to extend exploration time. Power for conventional marine instrument systems is incorporated in their waterproof sealing. External intermittent control of this power source until termination of exploration is challenging due to limitations imposed by the underwater environment. Thus, the AUV must have a power control system that can improve performance and maximize use of battery capacity. The authors developed such a power control system with a three-step algorithm. It automatically detects underwater operational states and can limit power, effectively decreasing power consumption by about 15%.
surface piercing propeller boundary element method hydrodynamic characteristics
2011/9/13
Demand for high-speed marine vehicles (HSMVs) is high among both commercial and naval users. It is the duty of the marine vessel’s designer to provide a hull and propulsion system that diminishes drag...