[1]孔 玲,潘华利*,邓其娟,等.泥石流泥舌动力过程的数值模拟研究[J].山地学报,2022,(1):84-95.[doi:10.16089/j.cnki.1008-2786.000657]
 KONG Ling,PAN Huali*,DENG Qijuan,et al.Numerical Simulation of Dynamic Process of Debris Flow Jet[J].Mountain Research,2022,(1):84-95.[doi:10.16089/j.cnki.1008-2786.000657]
点击复制

泥石流泥舌动力过程的数值模拟研究
分享到:

《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2022年第1期
页码:
84-95
栏目:
山地灾害
出版日期:
2022-02-04

文章信息/Info

Title:
Numerical Simulation of Dynamic Process of Debris Flow Jet
文章编号:
1008-2786-(2022)1-84-12
作者:
孔 玲12潘华利1*邓其娟3杨奉广4李炳志12
1.中国科学院、水利部成都山地灾害与环境研究所,成都 610041; 2.中国科学院大学,北京 1000493. 四川建筑职业技术学院,成都 610399. 4四川大学 水力学与山区河流开发保护国家重点实验室,成都 610044
Author(s):
KONG Ling12 PAN Huali1* DENG Qijuan3 YANG Fengguang4 LI Bingzhi12
1. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China2. University of Chinese Academy of Sciences, Beijing 100049, China; 3. Sichuan College of Architectural Technology, Chengdu 610399, China4. State Key Laboratory of Hydraulics and Mountain River Engineering, Chengdu 610044, China
关键词:
泥石流 泥舌 水力特性 VOF法 数值模拟
分类号:
P642.23
DOI:
10.16089/j.cnki.1008-2786.000657
文献标志码:
A
摘要:
泥石流下泄泥舌运动特征参数是制约下泄泥舌冲击特性和拦砂坝下游沟道冲刷研究的重要因素。大多数研究基于模型实验来研究泥石流过坝形成泥舌,成果受到观测手段与研究条件等限制,成果的实际应用意义不大。利用数值模拟方法研究清水或挟沙水流过坝现象,反演泥石流在过坝过程中的流动规律和流动状态,已经证明了数值模拟方法模拟泥石流运动特性的可行性,然而少有学者利用数值模拟针对泥舌运动进行仿真研究。本文针对拦砂坝满库状态,采用基于能有效追踪自由界面的VOF方法的k-ε紊流模型,模拟泥舌下泄运动过程,利用室内模型实验中无法获得的较为详细的流场信息,重点研究泥舌的纵向厚度、下游入射角以及流速分布的变化规律,分析泥舌运动参数与水平抛射距离之间的变化关系,探讨在不同泥石流容重和沟床条件下泥舌断面形态的沿程变化规律,并与已有的室内水槽模型实验结果进行比较分析。结果表明:(1)根据泥舌断面形态,泥舌空中运动段可分为密实段、扩散段和破碎段三个阶段;(2)泥舌的纵向厚度和下游入射角均随抛射距离的增大而增大,同时随泥石流容重和沟床纵坡的变化而变化;(3)泥舌的断面平均速度随抛射距离的增大而增大,且射距越大,流速分布越不均匀,呈中间大、周围小的特点。模拟结果与实验结果吻合良好,说明利用该数学模型模拟泥舌运动是可行的。本研究利用数值模拟对泥舌运动过程进行研究,弥补了模型实验中无法直接测量空中泥舌的形态和流速分布的不足,为准确认识泥舌水力特性提供了依据。

参考文献/References:

[1] 张莉,游勇,柳金峰,等. 泥石流拦砂坝坝前沉积与坝基扬压力实验研究[J]. 山地学报,2018,36(2):271-279. [ZHANG Li, YOU Yong, LIU Jinfeng, et al. Experimental study on characteristics of debris flow deposition and the uplift pressure of a check dam [J]. Mountain Research, 2018,36(2):271-279] DOI: 10.16089/j.cnki.1008-2786.000322
[2] 张卫旭,程霄,陈丛姗,等. 稀性泥石流水跃现象中能量耗散率研究[J]. 人民黄河,2016,38(6):76-80. [ZHANG Weixu, CHENG Xiao, CHEN Congshan, et al. Research on energy dissipation rate of hydraulic jump phenomena of dilute debris flow [J]. Yellow River, 2016,38(6):76-80] DOI: 10.3969/j.issn.1000-1379.2016.06.020
[3] PAN Huali, WANG Ren, HUANG Jiangcheng, et al. Study on the ultimate depth of scour pit downstream of debris flow sabo dam based on the energy method [J]. Engineering Geology, 2013,160:103-109. DOI: 10.1016/j.enggeo.2013.03.026
[4] 潘华利,欧国强. 泥石流坝后侵蚀坑纵剖面形态及最大深度实验研究[J]. 防灾减灾工程学报,2009,29(6):684-689. [PAN Huali, OU Guoqiang. Experimental study of the shape and the maximum depth of scour pit below debris flow sabo dam [J]. Journal of Disaster Prevention and Mitigation Engineering, 2009,29(6):684-689] DOI: 10.13409/j.cnki.jdpme. 2009.06.004
[5] 刘兴荣,周自强,董耀刚,等. 泥石流拦挡坝破损分析及优化对策——以陇南市武都区为例[J]. 山地学报,2020,38(3):473-482. [LIU Xingrong, ZHOU Ziqiang, DONG Yaogang, et al. Investigation of the failure patterns of debris flow retaining dams and optimized engineering countermeasures—a case study at Wudu district of Longnan city, Gansu, China [J]. Mountain Research, 2020,38(3):473-482] DOI: 10.16089/j.cnki.1008-2786.000526
[6] 郑志山,潘华利,安笑,等. 泥石流泥舌水力特性的沿程变化实验研究[J]. 自然灾害学报,2019,28(6):154-166. [ZHENG Zhishan, PAN Huali, AN Xiao, et al. Experimental study on spatial hydraulic characteristics of debris flow jet [J]. Journal of Natural Disasters, 2019,28(6): 154-166] DOI: 10.13577/j.jnd.2019.0617
[7] CHEN Huayong, CUI Peng, CHEN Jiangang, et al. Effects of spillway types on debris flow trajectory and scour behind a sabo dam [J]. Journal of Mountain Science, 2016,13(2): 203-212. DOI: 10.1007/s11629-015- 3607-6
[8] 郑志山. 泥石流过坝泥舌下泄形态及变化特征研究[D]. 北京:中国科学院大学,2019:1-116. [ZHENG Zhishan. Study on the morphology and change characteristics of debris flow jet through sabo dam [D]. Beijing: University of Chinese Academy of Sciences, 2019:1-116]
[9] 林雪平,游勇,柳金峰,等. 泥石流拦砂坝溢流口过流能力实验研究[J]. 自然灾害学报,2015,24(1):9-14. [LIN Xueping, YOU Yong, LIU Jinfeng, et al. Experimental study on discharge capacity of spillway of check dam for debris flow [J]. Journal of Natural Disasters, 2015,24(1):9-14] DOI: 10.13577/j.jnd.2015.0102
[10] 韩文亮,王裕宜,詹钱登. 粘性泥石流掺气减阻作用初探——云南东川蒋家沟泥石流[J]. 泥沙研究,2000(5):1-5. [HAN Wenliang, WANG Yuyi, ZHAN Qiandeng. A preliminary study on debris flow resistance reduction due to entrained air [J]. Journal of Sediment Research, 2000(5):1-5] DOI: 10.16239/j.cnki.0468-155x.2000.05.001
[11] 尹锐. 挑流消能数值模拟[J]. 中国水运,2020,20(9):58-59. [YIN Rui. Numerical simulation of energy dissipation in jet stream [J]. China Water Transport, 2020,20(9):58-59]
[12] WU Jianhua, LI Shufang, MA Fei. Energy dissipation of slot-type flip buckets [J]. Journal of Hydrodynamics, 2018,30(2):365-368. DOI: 10.1007/s42241-018-0022-9
[13] WU Jianhua, MA Fei, YAO Li. Hydraulic characteristics of slit-type energy dissipaters [J]. Journal of Hydrodynamics, 2012,24(6):883-887. DOI: 10.1016/S1001-6058(11)60316-8
[14] 张挺,麦栋玲. 高扩散低收缩差动坎高坎空中挑射水舌运动特性[J]. 福州大学学报(自然科学版),2008,36(3):450-454. [ZHANG Ting, MAI Dongling. Study on dynamic characteristics of water jet in hybrid type flip bucket [J]. Journal of Fuzhou University(Natural Science), 2008,36(3):450-454] DOI: 10.3969/j.issn.1000-2243. 2008.03.027
[15] 张挺,麦栋玲. 差动式挑坎水力特性数值模拟研究[G]//《水动力学研究与进展》杂志社. 第二十届全国水动力学研讨会文集. 上海:《水动力学研究与进展》杂志社, 2007: 279-285. [ZHANG Ting, MAI Dongling. Numerical study on the hydraulic characteristics of hybrid type flip bucket [G]// Press of Journal of Hydrodynamics. Proceeding of the 20th National Symposium on hydrodynamics. Shanghai: Press of Journal of Hydrodynamics, 2007: 279-285]
[16] 谢曌,刘超,胡中科. 空中水舌水力特性的数值模拟研究[J]. 人民黄河,2015,37(4):119-122. [XIE Zhao, LIU Chao, HU Zhongke. Hydraulic characteristics of jet flow numerical simulation research [J]. Yellow River, 2015,37(4):119-122] DOI: 10.3969/j.issn.1000-1379.2015.04.030
[17] 陈华勇,许唯临,邓军,等. 窄缝消能工水力特性的数值模拟与试验研究[J]. 水利学报,2012,43(4):445-451. [CHEN Huayong, XU Weilin, DENG Jun, et al. Numerical simulation and experimental study on the characteristics of slit-type energy dissipater in high arch dam [J]. Journal of Hydraulic Engineering, 2012,43(4):445-451] DOI: 10.13243/j.cnki.slxb.2012.04.015
[18] 李旭,王光进,李克钢. 尾矿坝溃坝泥沙运动特性及三维数值模拟研究[J]. 矿冶,2015,24(5):1-4+12. [LI Xu, WANG Guangjin, LI Kegang. Study on the flow characteristics of sand flow surging from tailings dam-break and its three dimensional numerical simulation [J]. Mining and Metallurgy, 2015,24(5):1-4+12] DOI: 10. 3969 / j. issn. 1005-7854.2015.05.001
[19] 崔佳慧. 粘性泥石流拦砂坝后回淤坡度试验研究[D]. 绵阳:西南科技大学,2018:1-72. [CUI Jiahui. Experimental study on deposition slope of viscous debris flow behind check-dam [D]. Mianyang: Southwest University of Science and technology, 2018: 1-72]
[20] 汤碧辉,孙红月,胡杭辉,等. 黏性泥石流对球型大颗粒启动的临界条件分析[J]. 工程地质学报,2018,26(6):1631-1637. [TANG Bihui, SUN Hongyue, HU Hanghui, et al. Analysis on critical hydraulic condition for starting motion of large-sized particles in viscous debris flow [J].Journal of Engineering Geology, 2018,26(6):1631-1637] DOI: 10.13544/j.cnki.jeg.2017-507
[21] 王孟来. 尾矿坝溃后流动过程及防护措施研究[D]. 重庆: 重庆大学,2011:1-79. [WANG Menglai. Study on the process of flowing from tailings dam-break and disaster prevention [D]. Chongqing: Chongqing University, 2011:1-79]
[22] Ansys Inc., Ansys Fluent Theory Guide(Release 16.0)[M]. Southpointe: ANSYS,Inc., 2015:48.
[23] 杨红娟,韦方强,胡凯衡,等. 黏性泥石流流速垂向分布试验研究[J]. 泥沙研究,2018,43(2):61-66. [YANG Hongjuan, WEI Fangqiang, HU Kaiheng, et al. Experimental study on vertical velocity distribution of viscous debris flows [J]. Journal of Sediment Research, 2018,43(2):61-66] DOI: 10.16239/j.cnki.0468-155x.2018.02.010
[24] 费祥俊,舒安平. 泥石流运动机理与灾害防治[M]. 北京: 清华大学出版社,2004:49-65. [FEI Xiangjun, SHU Anping. Movement mechanism and disaster prevention of debris flow [M]. Beijing: Tsinghua University Press, 2004:49-65]
[25] 李人宪. 有限体积法基础[M]. 北京:国防工业出版社,2005:1-67. [LI Renxian. Finite volume method [M]. Beijing: National Defense Industry Press, 2005:1-67]

相似文献/References:

[1]蒋志林,朱静,常鸣,等.汶川地震区红椿沟泥石流形成物源量动态演化特征[J].山地学报,2014,(01):81.
 JIANG Zhilin,ZHU Jing,CHANG Ming,et al.Dynamic Evolution Characteristics of Hongchun Gully Source Area of Debris Flow in Wenchuan Earthquake Region[J].Mountain Research,2014,(1):81.
[2]常鸣,唐川,蒋志林,等.强震区都江堰市龙池镇泥石流物源的遥感动态演变[J].山地学报,2014,(01):89.
 CHANG Ming,TANG Chuan,JIANG Zhilin,et al.Dynamic Evolution Process of Sediment Supply for Debris Flow Occurrence in Longchi of Dujiangyan,Wenchuan Earthquake Area[J].Mountain Research,2014,(1):89.
[3]王 钧,欧国强,杨 顺,等.地貌信息熵在地震后泥石流危险性评价中的应用[J].山地学报,2013,(01):83.
 WANG Jun,OU Guoqiang,YANG Shun,et al.Applicability of Geomorphic Information Entropy in the Postearthquake Debris Flow Risk Assessment[J].Mountain Research,2013,(1):83.
[4]王东坡,何思明,葛胜锦,等.“9?07”彝良地震诱发次生山地灾害调查及减灾建议[J].山地学报,2013,(01):101.
 WANG Dongpo,HE Siming,GE Shengjin,et al.Mountain Hazards Induced by the Earthquake of Sep 07,2012 in Yiliang and the Suggestions of Disaster Reduction[J].Mountain Research,2013,(1):101.
[5]喻 武,万 丹,汪书丽,等.藏东南泥石流沉积区植物群落结构和物种多样性特征[J].山地学报,2013,(01):120.
 YU Wu,WAN Dan,WANG Shuli,et al.Community Structure and Species Diversity of Debris Flow Deposition Area in Southeast of Tibet,China[J].Mountain Research,2013,(1):120.
[6]崔鹏,陈晓清,张建强,等.“4·20”芦山7.0级地震次生山地灾害活动特征与趋势[J].山地学报,2013,(03):257.
 CUI Peng,CHEN Xiaoqing,ZHANG Jianqiang,et al.Activities and Tendency of Mountain Hazards Induced by the Ms7.0 Lushan Earthquake,April 20,2013[J].Mountain Research,2013,(1):257.
[7]邹强,崔鹏,杨伟,等.G318川藏公路段泥石流危险性评价[J].山地学报,2013,(03):342.
 ZOU Qiang,CUI Peng,YANG Wei.Hazard Assessment of Debris Flows along G318 Sichuan-Tibet Highway[J].Mountain Research,2013,(1):342.
[8]王根龙,张茂省,于国强,等.舟曲2010年“8·8”特大泥石流灾害致灾因素[J].山地学报,2013,(03):349.
 WANG Genlong,ZHANG Maosheng,YU Guoqiang,et al.Factor Analysis for Catastrophic Debris Flows on August 8,2010 in Zhouqu City of Gansu,China[J].Mountain Research,2013,(1):349.
[9]陈源井,余斌,朱渊,等.地震后泥石流临界雨量变化特征——以汶川地震区小岗剑沟为例[J].山地学报,2013,(03):356.
 CHEN Yuanjing,YU Bin,ZHU Yuan,et al.Characteristics of Critical Rainfall of Debris Flow after Earthquake——A Case Study of the Xiaogangjian Gully[J].Mountain Research,2013,(1):356.
[10]游勇,柳金峰,陈兴长,等.芦山“4·20”地震后宝兴县城打水沟泥石流发育趋势及防治方案[J].山地学报,2013,(04):495.
 YOU Yong,LIU Jinfeng,CHEN Xingzhang.The Potential Tendency and Mitigation Measures of Dashui Gully in Baoxing Coutny after Lushan“4?20”Earthquake of Schuan[J].Mountain Research,2013,(1):495.

备注/Memo

备注/Memo:
收稿日期(Received date):2021-09-10; 改回日期(Accepted date): 2022-01-21
基金项目(Foundation item):国家重点研发计划项目(2019YFC1510702); 国家重点实验室开放基金(SKHL1717); 国家自然科学基金(42077275)。[National Key Research and Development Program of China(2019YFC1510702); State Key Laboratory Open Foundation(SKHL1717); National Natural Science Foundation of China(42077275)]
作者简介(Biography):孔玲(1997-),女,四川遂宁人,硕士研究生,主要研究方向:山地灾害及其动力过程。[KONG Ling(1997-), female, born in Suining, Sichuan province, M.Sc. candidate, research on mountain disaster and its dynamic process] E-mail: kongling@imde.ac.cn
*通讯作者(Corresponding author):潘华利(1982-),女,重庆人,博士,研究员,主要研究方向:山地灾害动力学机理。[PAN Huali(1982-), female, born in Chongqing, Ph.D.,professor,research on dynamic mechanism of mountain disaster] E-mail: hlpan@imde.ac.cn
更新日期/Last Update: 2022-01-30