PowerChina (China)

Dynamic Response Analysis of IEA 15 MW FOWT Under Extreme Focused Wave–Wind Conditions Based on Multi-Region Coupled Method

This study employs a multi-region coupled method to investigate the motion responses and aerodynamic load variations of the IEA 15 MW semi-submersible floating wind turbine (FOWT) under extreme focused wave conditions. The methodology employs the self-developed MRFoam solver with...

Zonal Variations in Cavern Inflow Features and Water Management of Pumped Hydro Storage in China

Pumped hydro storage is a well-established and reliable form of energy storage, with construction scale expanding steadily in recent years. Underground cavern excavation is an indispensable part of pumped storage construction, while sustained cavern inflow poses potential threats...

Preparation Method of Simulated Deep Sandstone Materials Based on Dual Equivalence of Principal Components and Mechanical Properties, and Quantitative Evaluation of Simulation Effectiveness

Intact deep sandstone cores are scarce, heterogeneous with poorly repeatable, limiting systematic laboratory studies of deep-rock mechanical behavior. This study selected dense sandstone recovered from 1050 m in the Pingdingshan mining area as the prototype system for the develop...

Study on Threshold Values of Safety Control Indicators for Rapid Drawdown of 200~300 m High Earth-Rockfill Dams

High dams and large reservoirs serve flood control, power generation, water supply and ecological security, where rapid safe drawdown is vital for emergency handling and long-term safe operation. Targeting undefined rapid drawdown control standards for over-200 m ultra-high earth...