Progress in aeolian sand ripple research—A review
Progress in aeolian sand ripple research—A review
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发表时间：
2006
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通讯作者：
Yue Xing-ling
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作者：
Yue Xing-ling
半个多世纪以来，世界各国对风沙波纹的研究取得了长足的进步。风沙波纹的理论也日趋完善。风沙波纹是沙与气流相互作用的结果。目前，风沙波纹的研究主要集中在波纹形态的测量与描述、沉积物中颗粒分凝机理的实验与模拟等方面。本文简要回顾了风沙波纹的研究进展，描述了风沙波纹的形态，并对风沙波纹的形成机理进行了模拟。分别从波纹的形成过程和波纹形成过程中的颗粒偏析机理两个方面对波纹的形成过程进行了解释，并对波纹形成过程中存在的问题和今后的研究趋势进行了讨论。同时，对不同研究者用不同的方法得到的结果进行了详细的分析。首先，抽象地概述了波纹研究的历史，然后展示了我们从调查和实验中得到的结果。关于波纹的构象，我们描述了表征波纹变化的元素的测量。另一方面，对波纹的变化进行了详细的分析通过实验解释了波纹形成的因素及其相互作用。特别是对波纹形成过程中沙流的特征、规律和作用进行了研究。同时，总结了国内外不同研究人员从不同环境中获得的关于波纹形成的各种理论。在波纹研究的其他方面，不同的学者用不同的技术进行了研究，得出了不同的结论。目前，在波纹的各个方面都存在着许多有争议的问题，不仅在波纹动力学方面，而且在形态和颗粒偏析机理方面，研究人员也没有达成一致。随着技术的发展，在波纹研究的其他方面，不同的学者用不同的技术进行了研究，得出了不同的结论我们的手段和手段也在不断改进，因此我们可以做得更准确，得到更完善的结论。特别是随着计算机的进步，我们可以预见计算机数值模拟将在涟漪研究中发挥重要作用。未来，我们的研究将顺应荒漠化的演变，以满足建设的要求。
Research in all over the world has made great progress in the investigation of aeolian sand ripples for more than half century.Also,the theory of aeolian sand ripples has becoming more and more complete.Aeolian sand ripples are the result of the interaction of the sand and airflow.At present,the research is focus on the measurement and description of ripples conformation,the experiment of the formation and simulation of the grain segregation mechanism in the sediment.This paper reviews the development of the research of aeolian sand ripples briefly.It describe ripples conformation,the process of ripples formation and grain segregation mechanism in ripples formation respectively to explain the entire process.It also gives a talk about the problems and the trend of these research in the future.At the same time,it analyzes the results in all the aspects which different researchers get with different method in detail.First,it abstractly overview the history of ripples research up to now.Then show the results we have got from the investigations and experiments.About ripples conformation,we describe the measurement of the element,which characterize the variation of the ripples.On the other hand,it explains the factors that bring about the form of the ripples t and the interaction between them by experiment.In special,it deals with the characteristics,rules and action of the sand flow during the process of the ripples formation.Simultaneously,it summaries all kinds of theoretic about ripples formation which different researchers have got from vary environment all over the world.Also,in other respects of ripples investigation,different scholars have studied with different techniques and educed varied conclusion.Nowadays,there are many disputed question in all facets of ripples,researchers have not agreed with each other in not only ripples dynamics,but conformation and grain segregation mechanism.With the development of technology,our instruments and means are becoming more and more improved.As a result,we can do work more accurately and get more perfect conclusion.Especially with the progress made in the computer,we can anticipate numerical simulation with computer will play an important part in the study of ripples.And in the future,our study will comply with the evolution of desertification in order to content the requiring of the construct.