Development and testing of a micro wind tunnel for on-site wind erosion simulations
Development and testing of a micro wind tunnel for on-site wind erosion simulations
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用于现场风蚀模拟的微型风洞的开发和测试
DOI：
10.1007/s10652-016-9478-8
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发表时间：
2016
影响因子：
2.2
通讯作者：
Strong C
中科院分区：
文献类型：
--
作者：
Strong C
风蚀过程影响全球所有土地利用的土壤表面。了解风蚀的空间和时间尺度是一项具有挑战性的工作，因为这些过程是多样化和高度可变的。风洞提供了一个有用的工具，因为它们可以用来模拟小空间尺度的侵蚀。便携式风洞特别有价值，因为可以在野外未受干扰的土壤表面上模拟侵蚀。大型便携式风洞的使用已经有很长的历史，人们一致认为这些风蚀模拟工具可以满足现实世界的空气动力学标准。然而，努力满足空气动力学现实的一个后果是，隧道的尺寸增加了，使它们在现场工作时后勤困难，并导致自然复杂的土壤表面趋于均匀化。这种均质化与人们日益意识到小规模过程在风蚀中的重要性是不一致的。为了解决这些物流和表面均质化问题，我们在这里提出了一个微型风洞（MWT）的开发和测试，旨在模拟高空间分辨率的风蚀过程。MWT为风管式设计，高0.05米，宽0.1米，工作断面1.0米。该隧道使用离心电机通过流量调节段吸入空气，通过工作段，然后通过沉积物收集陷阱。模拟风速范围为5 ~ 18 m s−1，重现性高。风速在横向上是均匀的，隧道床上的u*值（通过测量MWT内的压力梯度计算）与可以发展对数剖面的大型隧道相当。可以添加跃移沉积物。该隧道可由一人部署，并可在0至10°的斜坡上操作。这里提出的证据表明，MWT提供了新的和有用的了解牧场，粘土田和矿石库存的可蚀性。
Wind erosion processes affect soil surfaces across all land uses worldwide. Understanding the spatial and temporal scales of wind erosion is a challenging undertaking because these processes are diverse and highly variable. Wind tunnels provide a useful tool as they can be used to simulate erosion at small spatial scales. Portable wind tunnels are particularly valued because erosion can be simulated on undisturbed soil surfaces in the field. There has been a long history of use of large portable wind tunnels, with consensus that these wind erosion simulation tools can meet real world aerodynamic criteria. However, one consequence of striving to meet aerodynamic reality is that the size of the tunnels has increased, making them logistically difficult to work with in the field and resulting in a tendency to homogenise naturally complex soil surfaces. This homogenisation is at odds with an increasing awareness of the importance that small scale processes have in wind erosion. To address these logistical and surface homogenisation issues we present here the development and testing of a micro wind tunnel (MWT) designed to simulate wind erosion processes at high spatial resolution. The MWT is a duct-type design—0.05 m tall 0.1 m wide and with a 1.0 m working section. The tunnel uses a centrifugal motor to suck air through a flow‐conditioning section, over the working section and then through a sediment collection trap. Simulated wind velocities range from 5 to 18 m s−1, with high reproducibility. Wind speeds are laterally uniform and values ofu*at the tunnel bed (calculated by measuring the pressure gradients within the MWT) are comparable with those of larger tunnels in which logarithmic profiles can be developed. Saltation sediment can be added. The tunnel can be deployed by a single person and operated on slopes ranging from 0 to 10°. Evidence is presented here that the MWT provides new and useful understanding of the erodibility of rangelands, claypans and ore stockpiles.
尾矿库扬尘排放风蚀模型的开发与应用
DOI：
10.1080/17480930701365547
发表时间：
2007
期刊：
International Journal of Mining, Reclamation and Environment
影响因子：
--
作者：
L. C. Kon;S. Durucan;A. Korre
通讯作者：
A. Korre
为评估现场表面的侵蚀性而开发的便携式风洞和除尘器 1
DOI：
--
发表时间：
1951
期刊：
影响因子：
--
作者：
A. Zingg
通讯作者：
A. Zingg
抑尘剂减少未铺砌道路 PM10 排放的长期效果。
影响因子：
2.7
作者：
J. Gillies;J. Watson;C. F. Rogers;D. DuBois;J. Chow;R. Langston;James Sweet
通讯作者：
James Sweet