Comment on “Cavitation during desaturation of porous media under tension” by Dani Or and Markus Tuller
Comment on “Cavitation during desaturation of porous media under tension” by Dani Or and Markus Tuller
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Dani Or 和 Markus Tuller 对“张力下多孔介质去饱和过程中的空化”的评论
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
P. Culligan
中科院分区：
文献类型：
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作者：
N. K. Toker;J. Germaine;P. Culligan
[1]Or和Tuller [2002]提出了一种基于水在张力下的空化作用的多孔介质排液的潜在机制。在他们的技术说明中，Or和Tuller正确地认识到多孔介质中有两种排水机制，即空气进入土壤表面和土壤孔隙空间中的空化。他们还正确地指出，确定土壤水分特征（SMC）的技术，对土壤孔隙水施加正压力，不模拟空化。然而，Or和Tuller在其技术说明中使用的公式的基础与他们描述的空化和排水机制不一致（在第3节中讨论）。实际重要性较低的是，作者忽略了在水中形成气泡的能量公式中的一个重要细节（在第2节中讨论）。
[1] A potential mechanism for liquid drainage of porous media based on cavitation of water under tension was proposed by Or and Tuller [2002]. In their technical note, Or and Tuller correctly recognize that there are two mechanisms of drainage in porous media, namely, air entry into a soil surface and cavitation in the soil pore space. They also correctly note that techniques for determining a soil moisture characteristic (SMC) that apply positive pressure on the soil pore water do not simulate cavitation. However, the basis for the formulation that Or and Tuller use in their technical note does not correspond to the mechanisms of cavitation and drainage that they describe (addressed here in section 3). Of less practical importance is the fact that the authors miss a vital detail in the formulation of energy of formation of a bubble in water (addressed here in section 2).