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波浪破碎的一种混合湍流模拟模式

詹杰民 李熠华

詹杰民, 李熠华. 波浪破碎的一种混合湍流模拟模式[J]. 力学学报, 2019, 51(6): 1712-1719. doi: 10.6052/0459-1879-19-321
引用本文: 詹杰民, 李熠华. 波浪破碎的一种混合湍流模拟模式[J]. 力学学报, 2019, 51(6): 1712-1719. doi: 10.6052/0459-1879-19-321
Zhan Jiemin, Li Yihua. A HYBRID TURBULENCE MODEL FOR WAVE BREAKING SIMULATION[J]. Chinese Journal of Theoretical and Applied Mechanics, 2019, 51(6): 1712-1719. doi: 10.6052/0459-1879-19-321
Citation: Zhan Jiemin, Li Yihua. A HYBRID TURBULENCE MODEL FOR WAVE BREAKING SIMULATION[J]. Chinese Journal of Theoretical and Applied Mechanics, 2019, 51(6): 1712-1719. doi: 10.6052/0459-1879-19-321

波浪破碎的一种混合湍流模拟模式

doi: 10.6052/0459-1879-19-321
基金项目: 1) 国家重点项目(6140206040301);广东省科技计划项目资助(2016A050502022)
详细信息
    通讯作者:

    詹杰民

A HYBRID TURBULENCE MODEL FOR WAVE BREAKING SIMULATION

  • 摘要: 近岸波浪的变形与破碎,一方面影响水体标识码运输,另一方面对消波护岸具有指导意义.本文提出一种三维混合湍流模拟模式方法,将求解区域分为造波区、波浪传播区和消波区. 造波区采用层流模式,通过基于 Fluent 的二次开发的 UDF 方法在边界进行速度造波.这种方法在给定入口速度的条件标识码据已知波高进行 精准插值,从而控制水的体积分数. 在波浪传播区域,采用大涡标识码行模拟研究,在消波区,采用 RANS 模型并利用多孔介质消波法进行消波. 模标识码 VOF 方法捕捉波浪破碎过程中的自由面变化.本文对波高为 5.5cm 的规则波 (M1)、波高为 13.5cm 的 规则波 (M3)、有效标识码 7.75cm 的 TMA 谱单向不规则波 (U1) 和有效波高为 19cm 的 TMA 谱多向不规则波 (B5) 展开标识码研究,并与前人的相关标识码果作比较,各条件下模拟结果与实验结果吻合.模拟结果说明本文提出的模型能够准确模拟出波浪传播过程中的折射和标识码象,并且能够捕捉的波浪破碎过程中的自由面变化,为三维波浪的传播与破碎的数值模拟提供一种模拟方法.

     

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出版历程
  • 收稿日期:  2019-10-23
  • 刊出日期:  2019-11-18

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