GSTDTAP  > 气候变化
DOI10.1029/2021GL092459
Effects of water retention curves and permeability equations on the prediction of relative air permeability
Zhenlei Yang; Binayak P. Mohanty; Xin Tong; Xingxing Kuang; Ling Li
2021-04-26
发表期刊Geophysical Research Letters
出版年2021
英文摘要

Appropriate simulation of air flow in porous media needs an accurate estimate of relative air permeability (RAP). Combining two traditional and two fractal water retention curves (WRCs) respectively with six permeability equations, we obtained twelve statistical and twelve fractal RAP models. All these models were subsequently tested with thirty‐one experimental datasets of disturbed soils to examine their predictive ability for RAP. Results showed that irrespective of using traditional or fractal WRCs, the six permeability equations exhibit consistent performances for RAP prediction. The modified Burdine (Yang & Mohanty, 2015) permeability equation best fits the published soil data. In addition, the selection of a proper permeability equation is critical for accurately predicting the RAP, whereas the choice of WRCs has little effect on RAP prediction. This finding suggests that for disturbed soils, air permeability is primarily dictated by the pore tortuosity‐connectivity but not the pore size distribution inferred from the WRCs.

领域气候变化
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/324972
专题气候变化
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GB/T 7714
Zhenlei Yang,Binayak P. Mohanty,Xin Tong,et al. Effects of water retention curves and permeability equations on the prediction of relative air permeability[J]. Geophysical Research Letters,2021.
APA Zhenlei Yang,Binayak P. Mohanty,Xin Tong,Xingxing Kuang,&Ling Li.(2021).Effects of water retention curves and permeability equations on the prediction of relative air permeability.Geophysical Research Letters.
MLA Zhenlei Yang,et al."Effects of water retention curves and permeability equations on the prediction of relative air permeability".Geophysical Research Letters (2021).
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