Does the permeability of gravel river beds affect near‐bed hydrodynamics?

Cooper James R.; Ockleford Annie; Rice Stephen P.; Powell D. Mark

摘要

Abstract >The permeability of river beds is an important control on hyporheic flow and the movement of fine sediment and solutes into and out of the bed. However, relatively little is known about the effect of bed permeability on overlying near‐bed flow dynamics, and thus on fluid advection at the sediment–water interface. This study provides the first quantification of this effect for water‐worked gravel beds. Laboratory experiments in a recirculating flume revealed that flows over permeable beds exhibit fundamental differences compared with flows over impermeable beds of the same topography. The turbulence over permeable beds is less intense, more organised and more efficient at momentum transfer because eddies are more coherent. Furthermore, turbulent kinetic energy is lower, meaning that less energy is extracted from the mean flow by this turbulence. Consequently, the double‐averaged velocity is higher and the bulk flow resistance is lower over permeable beds, and there is a difference in how momentum is conveyed from the overlying flow to the bed surface. The main implications of these results are three‐fold. First, local pressure gradients, and therefore rates of material transport, across the sediment–water interface are likely to differ between impermeable and permeable beds. Second, near‐bed and hyporheic flows are unlikely to be adequately predicted by numerical models that represent the bed as an impermeable boundary. Third, more sophisticated flow resistance models are required for coarse‐grained rivers that consider not only the bed surface but also the underlying permeable structure. Overall, our results suggest that the effects of bed permeability have critical implications for hyporheic exchange, fluvial sediment dynamics and benthic habitat availability. ? 2017 The Authors. Earth Surface Processes and Landforms publis </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract XMLNS =“http://www.wiley.com/namespaces/wiley”type =“main”xml：lang =“en”> <title type =“main”>抽象</ title> >渗透率河床是对低于过度流动的重要控制和精细沉积物的运动，并溶于床进出床。然而，关于床渗透性对覆盖近床流动动力学的影响相对较少，因此涉及沉积物 - 水界面的流体平流。本研究提供了对水性砾石床的第一种效果的量化。再循环水槽中的实验室实验显示，与相同地形的不透水床的流动相比，流过渗透床的流动表现出基本差异。由于漩涡更加连贯，渗透床上渗透床的湍流不太强烈，更有机化，更有效。此外，湍流的动能较低，这意味着通过这种湍流从平均流动提取的能量较少。因此，双平均速度较高，并且在渗透床上较低的散装流动阻力较低，并且在覆盖流动到床表面的动量有差异。这些结果的主要含义是三倍。首先，局部压力梯度和因此材料运输的速率在沉积物 - 水界面上可能不同于不可渗透和渗透性床。其次，近床和低对流流量不太可能通过表示床作为不可渗透边界的数值模型来充分预测。第三，粗粒河流需要更复杂的流动性模型，其不仅考虑床面，而且需要底层的可渗透结构。总体而言，我们的结果表明，床渗透性的影响对低于交换，河流沉积动力学和底栖栖息地可用性具有重要影响。还2017年作者。地球表面流程和地貌公共机构 </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-22319/'>《Earth Surface Processes and Landforms: The journal of the British Geomorphological Research Group》</a> <b style="margin: 0 2px;">|</b><span>2018年第5期</span><b style="margin: 0 2px;">|</b><span>共13页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Cooper James R.&option=202" target="_blank" rel="nofollow">Cooper James R.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ockleford Annie&option=202" target="_blank" rel="nofollow">Ockleford Annie;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Rice Stephen P.&option=202" target="_blank" rel="nofollow">Rice Stephen P.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Powell D. Mark&option=202" target="_blank" rel="nofollow">Powell D. Mark;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Department of Geography and Planning School of Environmental SciencesUniversity of LiverpoolLiverpool L69 7ZT UK;</p> <p>School of Environment and TechnologyUniversity of BrightonBrighton BN2 4GJ UK;</p> <p>Centre for Hydrological and Ecosystem Science Department of GeographyLoughborough UniversityLoughborough LE11 3TU UK;</p> <p>Department of GeographyUniversity of LeicesterLeicester LE1 7RH UK;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/163.html" title="地球物理学">地球物理学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=bed permeability&option=203" rel="nofollow">bed permeability;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=hydrodynamics&option=203" rel="nofollow">hydrodynamics;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=gravel bed&option=203" rel="nofollow">gravel bed;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=flume&option=203" rel="nofollow">flume;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=river&option=203" rel="nofollow">river;</a> </p> <div class="translation"> 机译：床渗透率;流体动力学;砾石床;水槽;河流; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704023139256.html">Does the permeability of gravel river beds affect near‐bed hydrodynamics?</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Cooper James R.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Cooper James R.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ockleford Annie&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Ockleford Annie,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Rice Stephen P.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Rice Stephen P.,</a> <a href="/journal-foreign-22319/" target="_blank" rel="nofollow" class="tuijian_authcolor">Earth Surface Processes and Landforms: The journal of the British Geomorphological Research Group .</a> <span>2018</span><span>,第5期</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：砾石河床的渗透性是否影响了近床的流体动力学？</span> </p> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704025137643.html">Numerical simulation of hydrodynamic characteristics and bedload transport in cross sections of two gravel-bed rivers based on one-dimensional lateral distribution method</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> </a> <a href="/journal-foreign-32630/" target="_blank" rel="nofollow" class="tuijian_authcolor">Trends in Ecology & Evolution .</a> <span>2020</span><span>,第2期</span> </span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：基于一维横向分布法的两个砾石河河横截面流体动力特性及床载运输的数值模拟</span> </p> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/academic-journal-foreign_detail_thesis/0204118703375.html">Hydrodynamic Simulation of an Irregularly Meandering Gravel-Bed River: Comparison of MIKE 21 FM and Delft3D Flow models</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Parna Parsapour-moghaddam&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Parna Parsapour-moghaddam,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Colin D. 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2005</span><span>,第001期</span> </span> </div> </li> <li> <div> <b>6. </b><a class="enjiyixqcontent" href="/academic-conference-cn_meeting-23973_thesis/020221023784.html">明渠卵砾石河床近底水流特性试验研究</a> <b>[C]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=王宪业&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 王宪业</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=杨青远&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,杨青远</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=卢伟真&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,卢伟真</a> <span> <a href="/conference-cn-23973/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 第二十届全国水动力学研讨会 </a> <span> <span> . 2006</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020314973216.html">近50年来人类活动对椒江河口河床演变影响</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=倪敏&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 倪敏</a> <span> . 2012</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/061203665648.html">卵砾石河床透水层渗流量测量计算方法</a> <b>[P]</b> . <span> 中国专利： CN106709139B </span> <span> . 2020.03.17</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120109200629.html">卵砾石河床透水层渗流量测量计算方法</a> <b>[P]</b> . <span> 中国专利： CN106709139A </span> <span> . 2017-05-24</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130494748506.html">An improved method of and means for recovering gravel, shingle and the like from the bed of the sea, from river beds and similar places</a> <b>[P]</b> . <span> 外国专利：  GB462533A </span> <span> . 1937-03-08</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：从海床，河床和类似地方回收砾石，带状瓦砾等的改进方法和装置 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130471986221.html">DEVICE OF RAPIDLY AND EASILY MOVING LARGE AMOUNT OF SEDIMENT GRAVEL ACCUMULATED AT DRY RIVER-BED AND RIVER-MOUTH BY MEANS OF WATER INJECTION FORCE FROM WATER SURFACE</a> <b>[P]</b> . <span> 外国专利：  JPS6172133A </span> <span> . 1986-04-14</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：通过水面注水力在干河床和河口累积的大量泥沙砾快速而便捷地移动的装置 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130424305924.html">System for draining and/or retaining rain water in e.g. building roof, has intake pipe discharging into cavity or into bed and provided for supplying rain water, where bed is made from water-permeable material e.g. sand or gravel</a> <b>[P]</b> . <span> 外国专利：  DE102009053027A1 </span> <span> . 2011-05-19</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：用于排放和/或保留雨水的系统，例如建筑物屋顶，其进水管排入空腔或入床，并提供雨水供应，其中的床是由透水材料制成的，例如沙子或砾石 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> </div> </div> <div id="thesis_get_original1" class="downloadBth" style="bottom: 19px;z-index: 999;" onclick="ywcd('0704023139256','4',7,2,1,'',this,24)" class="delivery" prompt="010401" title="通过人工服务将文献原文发送至邮箱" >获取原文</div> <div class="journalsub-pop-up" style="display: none"> <div 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