2024湍流精细化评估及解决方案探讨

INNOVATECLEANENERGYFOR0101Theturbulenceintensityoftheprojectisdistributedinthenational0202Influencingfactorsof0303Effectofstandarddeviationintegrityrateofwindspeedon0404Explorationofturbulentverticalextrapolation0505TheTheturbulenceintensityoftheprojectisdistributedinthenationalINNOVATECLEANENERGYFORTheturbulenceintensityoftheprojectisdistributedinthenationalregionInfluencingInfluencingfactorsofINNOVATECLEANENERGYFORDefinitionandinfluencingfactorsofturbulence环境湍流𝑰𝒂𝒎𝒃：表示10min

=值的84%分位数（IEC61400-1ED2）𝐼𝑐ℎ𝑎𝑟𝑎𝑐𝑡𝑒𝑟𝑖𝑠𝑡𝑖𝑐=𝐼+代表湍流𝑰𝒓𝒆𝒑𝒓𝒆𝒔𝒆𝒏𝒕𝒂𝒕𝒊𝒏𝒆：每个10min步长包含一个湍流强度值，代表湍流强度等于这些湍流强度值的90%分位数（IEC61400-1ED3.1）𝐼rep𝑟𝑒𝑠𝑒𝑛𝑡𝑎𝑡𝑖𝑛𝑒=𝐼+1.5+0.8∗𝑑𝑖/1.5+0.8∗𝑑𝑖/

=

（IEC61400-1ED3𝐼𝑎𝑚𝑏+𝐼𝑎𝑚𝑏+1.28∗𝜎𝜎2+𝑝𝑝𝜃|𝑉ℎ𝑢𝑏𝜃|𝑉ℎ𝑢𝑏

Wohler

InfluencingfactorsofturbulenceDensity𝜎𝐼=×

小于0.001kg/m3InfluencingfactorsofturbulenceheightInfluencingfactorsofturbulenceTerrain&AtmosphericstabilityInfluencingfactorsofturbulenceWohlerindex湍流的影响因素-wohler

2𝜋𝑝2𝜋𝑝𝜃|𝑉ℎ𝑢𝑏Briefsummary空气密度的变化对湍流影响较小湍流对地形和热稳定度具有一定敏感度，计算前建议做热稳定度的模型校验

高 地

Wohler

EffectofEffectofstandarddeviationintegrityrateofwindspeedonINNOVATECLEANENERGYFOREffectofstandarddeviationintegrityrateofwindspeedonturbulence数据分析

3~11monthsrepresentsthedeviationrangeofturbulence3~113~11monthsrepresentsthedeviationrangeofturbulence3~11ExplorationExplorationofturbulentverticalextrapolationINNOVATECLEANENERGYFORExploringturbulentverticalextrapolationAvarietyofnumericalmethodswereusedtofittheresultsforanalysis

次高层替换幂指数拟合对数拟合Analysisoftheresultsofextrapolationerrorsatdifferentheights

RecommendationsRecommendationsforlargeturbulenceINNOVATECLEANENERGYFORStatusoftheGreatTurbulenceProjectTurbulenceanalysisshouldbecarriedoutthroughouttheproj