The impact of inter-dune space and volume ratio on barchan dune collision patterns: A numerical simulation study

被引：4

作者：

Lin, Yuanwei ^{[1
]}

Guan, Kaiyuan ^{[1
]}

Zhang, Yang ^{[1
]}

Gao, Xin ^{[2
]}

Yang, Bin ^{[3
]}

He, Nan ^{[4
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Dept Fluid Machinery & Engn, Xian 710049, Peoples R China

[2] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China

[3] Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China

[4] Ecole Super Phys & Chim Ind Ville Paris, Phys & Mecan Milieux Heterogenes, F-75005 Paris, France

来源：

PHYSICS OF FLUIDS | 2024年 / 36卷 / 01期

基金：

中国国家自然科学基金;

关键词：

LATTICE BOLTZMANN METHOD; BOUNDARY-CONDITIONS; CONTACT ANGLES; DYNAMICS; FLOWS; EQUATION; DIFFUSE; MODELS; LIQUID;

D O I：

10.1063/5.0188071

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Collision among barchan dunes is a main cause for the dune swarm to achieve size and speed selection, and it can be divided into two patterns: coalescence and ejection. Here, a three-dimensional (3D) cellular automaton model is applied to collectively study the effects of inter-dune space and relative dune size on these collision patterns. A parameter space is established that includes a transition surface distinguishing coalescence and ejection. Confirmed by field observations and subaquatic experiments, a comprehensive depiction of transition between coalescence and ejection is provided, which may bring new constraints on the morphodynamics of barchan dune fields.

引用

页数：6

共 8 条

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NEW JOURNAL OF PHYSICS, 2011, 13
[2] Patterns of species diversity across scales and along the slope on the ecotone between the active sand dune and the inter-dune lowland in Horqin Sandy Land, China
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SCIENTIFIC REPORTS, 2024, 14 (01):
[7] Investigating the Impact of Green Space Ratio and Layout on Bioaerosol Concentrations in Urban High-Density Areas: A Simulation Study in Beijing, China
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