水沙流作用下粗糙度对圆柱体结构受力特性及冲蚀的影响

来源 :山东科技大学学报：自然科学版 | 被引量 : 0次 | 上传用户：mysqlfalse

【摘要】

：

基于Fluent软件建立三维模型,采用SST k-ω湍流模型,对含沙量在0.05、0.5和5 kg/m³,柱体表面粗糙度在0、0.1%D、0.3%D、0.5%D、0.8%D和1%D时单圆柱绕流的柱体的受力特性及冲蚀进行数值模拟,研究了不同含沙量水流作用下,粗糙度对圆柱的平均阻力系数、升力系数及冲蚀率的影响。结果表明:在同一含沙量的水流作用下,柱体的升力系数在粗糙度为0.5%D时达到最大值;当柱体表面粗糙度相同时,平均阻力系数受水沙流含沙量的影响较小,升力系数受含沙量的影响较大;在不同

【作者】

：

乔智威刘壮张宪堂张惠尧李泽熹李丹

【机构】

：

山东科技大学山东省土木工程防灾减灾重点实验室,山东科技大学土木工程与建筑学院,山东高速青岛公路有限公司,山东科技大学地球科学与工程学院

【出处】

：

山东科技大学学报：自然科学版

【发表日期】

：

2021年3期

【关键词】

：

水沙流粗糙度圆柱体结构受力特性冲蚀率

【基金项目】

：

国家自然科学基金项目(51874189,51709161),山东省自然科学基金项目(ZR2017MEE043),山东省研究生教育创新计划项目(SDYY15086,SDYY15088)。

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水沙流作用下粗糙度对圆柱体结构受力特性及冲蚀的影响

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