堤防决口下游泥沙冲刷的三维数值模拟分析 three dimensional numerical simulation research of sediment scour in downstream of dike breach.pdfVIP
- 1、本文档共7页,可阅读全部内容。
- 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
- 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
- 5、该文档为VIP文档,如果想要下载,成为VIP会员后,下载免费。
- 6、成为VIP后,下载本文档将扣除1次下载权益。下载后,不支持退款、换文档。如有疑问请联系我们。
- 7、成为VIP后,您将拥有八大权益,权益包括:VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
- 8、VIP文档为合作方或网友上传,每下载1次, 网站将根据用户上传文档的质量评分、类型等,对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档
查看更多
堤防决口下游泥沙冲刷的三维数值模拟分析 three dimensional numerical simulation research of sediment scour in downstream of dike breach
第38卷第4期 南昌大学学报(工科版) Vol.38 No.4
2016年12月 Journal of Nanchang University(Engineering Technology) Dec.2016
文章编号:1006-0456(2016)04-0360-06
堤防决口下游泥沙冲刷的三维数值模拟分析
罗娜,刘成林,陈宇豪
(南昌大学建筑工程学院,江西南昌330031)
摘要:堤防决口水流冲刷将直接影响建筑物的整体安全,基于Flow-3D软件建立了泥沙冲刷的三维数学模型
并采用物理模型试验算例进行验证,验证结果表明数值模拟泥沙计算值和试验实测值拟合较好。随后采用所建模
型模拟计算了不同型式(矩型、U型、T型、V型)堤防决口的冲刷过程并对计算结果进行比较分析,结果表明堤防决
口出口堤脚处水流冲刷泥沙的程度最大,冲坑深度随着河道水流方向逐渐增大,矩型决口下游泥沙冲刷的的范围
面最广,冲坑两侧泥沙堆积高度最大;
V型决口下游泥沙冲刷的范围最小,泥沙堆积范围最小;U型和T 型决口下
游冲坑发展较为对称且规律相似,可相互参考分析。
关键词:堤防;Flow-3D;决口型式;泥沙冲刷;堆积
中图分类号:TV8 1.3 文献标志码:A
Three dimensional numerical simulation research of
sediment scour in downstream of dike breach
LUO Na,LIU Chenglin,CHEN Yuhao
(School of Civil Engineering and Architecture,Nanchang University,Nanchang330031,China)
Abstract:Scour of dikedam-breakflowwoulddirectly affecttheoverall safety of the structure.Basedon Flow-
3D software,a three numerical sediment scour model was established and verifiedwith a physical model test exam-
ple.Verification results showed that the sediment calculated values of numerical simulation were in good agreement
with theexperimentalvalues.Thenscourprocessof differenttypesof dike,includingrectangulartype,Utype,Ttype
and V type,were simulated by the sediment scour model.Results showed that the greatest scour was near the dike
breach,scour depth increased gradually alongwith the direction of riverflow,sediment scour area and packed sedi-
ment of downstream inrectangular type dikewasmaximum.However Vtype dike downstreamwasminimum.Devel-
opment of U type and V type dike downstream scour hole were more symmetrical and similar,thus they could be
mutual reference analyze.
Key ords:dike
您可能关注的文档
- 低伤害钻井液技术在义北油区的应用 application of low damage drilling fluid in yibei area.pdf
- 低渗气藏启动压力梯度实验研究及分析 experimental research and analysis on threshold pressure gradient in low-permeability gas reservoir.pdf
- 低渗气藏确定关井后井口恢复稳定压力的一种新方法.pdf
- 低渗透煤层气注热开采过程效率分析 efficiency analysis during extracting methane in low-permeability coal bed by heat injection.pdf
- 低渗透率储层流度计算改进方法探讨 mobility calculation and correction methods of formation tester in low-permeability sands.pdf
- 低渗透非均质油藏二氧化碳非混相驱窜逸控制实验 experiments of gas channeling control during co2 immiscible flooding in low permeability reservoirs with heterogeneity.pdf
- 低渗透率储层地质裂缝分析研究 an analysis of cracks in reservoirs with low permeability.pdf
- 低渗透煤储层缝网压裂工程技术研究 study on engineering technology in network hydraulic fracturing.pdf
- 低渗透储层孔隙结构常规测井识别方法 identification method for pore structures with well logs in low-permeability sandstone.pdf
- 低渗透普通稠油油藏水平井极限动用半径——以叙利亚oudeh油田为例 limit drainage radius of horizontal well in low-permeability common heavy oil reservoir a case of oudeh oilfield, syria.pdf
文档评论(0)