利用克朗普顿框架确定雷诺数较低的半干旱野外条件下地面对陆地流的阻力

IF 2.8 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Environmental Earth Sciences Pub Date : 2025-03-10 DOI:10.1007/s12665-025-12177-5

J. R. B. Cantalice, V. P. Singh, Taiza K. A. Souza, E. O. S. Nunes, Genival Barros Junior, V. P. Silva Junior, Wagner L. S. Souza, Jeongwoo Han

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引用次数: 0

摘要

半干旱山坡上有灌木或有作物的浅水流常以无浓度的层流形式出现。通常，流动的雷诺数较低，通常在100以下，土壤表面与阻碍流动的植被相互作用产生的表面水力阻力受弗劳德数支配。本研究在巴西灌木和半干旱作物田中进行了田间试验，并应用Crompton框架模型对水力阻力进行了模拟。在半干旱山坡上，在作物或自然植被下，坡面流的雷诺数一般在32 ~ 54之间，流为层流和亚临界流。通过采用运动波近似，发现Crompton框架以可接受的精度模拟半干旱山坡上的地面流阻力。

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Determining surface resistance to overland flow in semiarid field conditions with low Reynolds numbers using the Crompton framework

Shallow water flow on semiarid hillslopes with shrubs or cultivated with crops often occurs as laminar flow without concentration. Typically, the flow has a low Reynolds number, usually below 100, and the surface hydraulic resistance generated from the interaction between the soil surface and vegetation that obstructs the flow is governed by the Froude number. This study conducted field experiments on Brazilian shrub and semiarid crop fields and applied the Crompton framework to model hydraulic resistance. The overland flow observed on semiarid hillslopes under crops or natural vegetation always presented Reynolds numbers between 32 and 54, and the flow was laminar and subcritical. By employing the kinematic wave approximation, the Crompton framework was found to model overland flow resistance over semiarid hillslopes with acceptable accuracy.

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来源期刊

Environmental Earth Sciences 环境科学-地球科学综合

CiteScore

5.10

自引率

3.60%

发文量

494

审稿时长

8.3 months

期刊介绍： Environmental Earth Sciences is an international multidisciplinary journal concerned with all aspects of interaction between humans, natural resources, ecosystems, special climates or unique geographic zones, and the earth: Water and soil contamination caused by waste management and disposal practices Environmental problems associated with transportation by land, air, or water Geological processes that may impact biosystems or humans Man-made or naturally occurring geological or hydrological hazards Environmental problems associated with the recovery of materials from the earth Environmental problems caused by extraction of minerals, coal, and ores, as well as oil and gas, water and alternative energy sources Environmental impacts of exploration and recultivation – Environmental impacts of hazardous materials Management of environmental data and information in data banks and information systems Dissemination of knowledge on techniques, methods, approaches and experiences to improve and remediate the environment In pursuit of these topics, the geoscientific disciplines are invited to contribute their knowledge and experience. Major disciplines include: hydrogeology, hydrochemistry, geochemistry, geophysics, engineering geology, remediation science, natural resources management, environmental climatology and biota, environmental geography, soil science and geomicrobiology.