Relationships and feedback between airflow dynamics, sand transport and underlying surface characteristics play significant roles in the formation and evolution of aeolian landforms. Studies that apply Computational Fluid Dynamics (CFD) modeling have increasingly provided insights into the influence of wind dynamics and characteristics of wind-blown sand. However, there is a lack of systematic review on modeling airflow and sand transport over aeolian landforms. This paper reviews 105 relevant CFD studies from the literature up to 2023 and summarizes methods of modeling airflow and sand transport. Additionally, it reviews their implementations of these methods and findings on how wind regimes and underlying surface characteristics, including surface roughness conditions and bedform morphology, affect wind dynamics and the behavior of wind-blown sand. This review aims to provide a comprehensive review of CFD modeling methods and their application to better understand the utilization of CFD simulations of aeolian landforms. CFD approach provides a valuable alternative to study related filed in a controlled, accessible, visualized, and detailed manner. We conclude this review by recommending three topics for future research to improve the accuracy of modeling and promote applications of CFD to aeolian landforms, i.e., modeling critical and comprehensive turbulent flow, developing robust and accurate models of particle motion, and investigating the effects of vegetation and boundary layers.

中文翻译：

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风沙地貌上气流和沙子输送的计算流体动力学 (CFD) 方法论和分析综述

气流动力学、沙粒输送和下垫面特征之间的关系和反馈在风成地貌的形成和演化中发挥着重要作用。应用计算流体动力学 (CFD) 建模的研究越来越多地深入了解风动力学的影响和风沙的特征。然而，对风沙地貌上的气流和沙子输送建模缺乏系统评价。本文回顾了截至 2023 年文献中的 105 项相关 CFD 研究，总结了气流和沙子输送的建模方法。此外，它还回顾了这些方法的实施情况，以及风况和下垫面特征（包括表面粗糙度条件和床形形态）如何影响风动力学和风吹沙行为的发现。本综述旨在对 CFD 建模方法及其应用进行全面综述，以更好地理解 CFD 模拟在风沙地貌中的应用。 CFD 方法为以受控、可访问、可视化和详细的方式研究相关领域提供了一种有价值的替代方案。最后，我们推荐了未来研究的三个主题，以提高建模的准确性并促进 CFD 在风沙地貌中的应用，即对临界和综合湍流进行建模、开发稳健且准确的粒子运动模型以及研究植被的影响和边界层。