HE Jiaoyang,LAI Can,LI Jing.Three-dimensional Microburst Modeling based on Function Fitting[J].Journal of Chengdu University of Information Technology,2020,35(06):599-603.[doi:10.16836/j.cnki.jcuit.2020.06.003]
基于函数拟合的三维微下击暴流建模
- Title:
- Three-dimensional Microburst Modeling based on Function Fitting
- Keywords:
- micro-downburst; wind field model; numerical simulation
- 分类号:
- TN957.52+9
- 文献标志码:
- A
- 摘要:
- 微下击暴流是一种可以产生近地面破坏性水平辐散出流的风暴局部性强下沉气流,越靠近地面风速越大,属于一种突发性、局地性的强对流破坏性天气。为减小或者避免微下击暴流所引起的低空风切变所带来的危害,常常建立风场模型,进行风场试验。利用工程模拟法,根据其流体力学特征,采用分段函数建立微下击暴流的数学模型,从而进行风场模拟,建立能较好反映其风场结构特征的三维风场模型。
- Abstract:
- Micro-downburst is a kind of local strong downdraft in thunderstorm clouds,which willproduce a linear gale when it reaches the ground,and the closer it is to the surface,thegreater the wind speed will be,which is a kind of sudden and local strong convectivedestructive weather.In order to reduce or avoid the harm caused by low-level windshearcaused by microburst,wind field models are often established and wind field tests arecarried out.In this paper,by using the engineering simulation method,according to itshydrodynamic characteristics,the mathematical model of micro-downburst is establishedby piecewise function,thus the wind field issimulated,and a three-dimensional wind fieldmodel which can better reflect the structural characteristics of wind field is established.
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相似文献/References:
[1]李 静,何姣阳,李田家,等.基于FLUENT的下击暴流三维风场建模[J].成都信息工程大学学报,2021,36(05):508.[doi:10.16836/j.cnki.jcuit.2021.05.006]
LI Jing,HE Jiaoyang,LI Tianjia,et al.Three-dimensional Wind Field Modeling of Downburst based on FLUENT[J].Journal of Chengdu University of Information Technology,2021,36(06):508.[doi:10.16836/j.cnki.jcuit.2021.05.006]
备注/Memo
收稿日期:2020-09-07 基金项目:国家自然科学基金资助项目(U1733103)