obsidian_backup/学术讲座-交流-面试/2025.5.28 DNV年度用户会议.md

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bladed开发计划与进展

turbine challenge

  • growth
    • challege in structures aerodynamics stabilities
  • 固定式 - 行架式 - floating
    • 计算数增加,时间增长、工况复杂
  • 浮式平台多种形式

bladed4

100+ industral customers

long flexible blades

deep stall

叶片的高频振动instability

SIV-1 stall induced vibration 攻角在-150-150也会引起vibration SIV-2 ,存在两个问题 1没有气动数据没有unsteady 模型

IAG dynamic stall model

IAG在Cl Cd Cm上都更准确 13%21% 24%厚度

IEA 15MW DLC 6.3 BEM + no DS BEM + BL model 都出现叶片抖动 BEM + IAG model 不抖动,但是也出现停顿

风场是否有负切变仿真能力

bladed5

flexible turbine assembly tree superelement

model imblence

  • add 模块之间的offset

better support of early blade design process independent meshes between aerodynamic and sur

基于api前处理和后处理

bladed 5 new features

yaw bear model

add sensors to simulation