Prediction of hydraulic conductivity based on the soil grain size using supervised committee machine artificial intelligence

Khalili-Maleki, Mohammad; Poursorkhabi, Ramin Vafaei; Nadiri, Ata Allah; Dabiri, Rouzbeh

doi:10.1007/s12145-022-00848-x

Cited by 9 publications

(3 citation statements)

References 53 publications

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“…uh(𝜉) is a set of n functions of [30], and in this equation, [Nh(η)] is the matrix of shape functions. Equation ( 4) can be used to determine the strains present in the scaled boundary coordinate system (4).…”

Section: The Interpolating Scaled Boundary Local Petrov Galerkin Methodsmentioning

confidence: 99%

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A modified scaled boundary method to analyze structural elements

Zare,

Vafaei Poursorkhabi,

Alizadeh Majdi

et al. 2023

Numerical Methods in Civil Engineering

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It is possible to resolve numerical issues by utilizing a method known as the conventional scaled boundary finite element method (also known as SBFEM), which is a dimension reduction technique. This method can be utilized in conjunction with mesh-free technologies in order to enhance the numerical characteristics of the conventional SBFEM. Within the scope of this investigation, a novel interpretation of the SBM is presented that makes use of the advantages offered by the meshless local Petrov Galerkin method. Using the moving Kriging interpolation (MKI) method, it is possible tocreate shape functions that conform to the requirements of the Kronecker delta function property. The interpolating scaled boundary local Petrov Galerkin method that was then proposed has the ability to implement essential boundary conditions (ISBLPGM) directly. This new method offers a number of benefits in comparison to scaled boundary approaches that have been presented in the past. It is optional to have a mesh that has been predefined, and the boundary conditions can be determined with very little additional effort. It has been demonstrated that the numerical approach being presented yields results that are in very good agreement with analytical and other numerical approaches. Solving the benchmark numerical problems allows an evaluation of the effectiveness of the proposed method as well as its precision.

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Section: The Interpolating Scaled Boundary Local Petrov Galerkin Methodsmentioning

confidence: 99%

“…Utilizing the weighted residual method [4] is a way to order of differential equations can be reduced to integral equations. The resulting integral equations, sometimes referred to as weak-form equations, can be analyzed by applying a wide variety of numerical methods.…”

Section: Introductionmentioning

confidence: 99%

A modified scaled boundary method to analyze structural elements

Zare,

Vafaei Poursorkhabi,

Alizadeh Majdi

et al. 2023

Numerical Methods in Civil Engineering

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“…For the knowledge of some soil parameters such as saturated moisture content (θ s ) and saturated hydraulic conductivity (K s ) can be obtained by field and laboratory tests, but they are costly and time consuming, also, they can be estimated by pedotransfer functions 15 , 16 or neural networks 17 – 19 that relate more properties of the soil being analyzed. However, to achieve the above, sufficient data is required to have a representative equation of the soil being analyzed.…”

Section: Background and Summarymentioning

confidence: 99%

A soil database from Queretaro, Mexico for assessment of crop and irrigation water requirements

2023

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Several studies have assessed crop water requirements based on soil properties, but these have been on a small scale or on soils with similar textures. Here, a data base of soil measurements in the field and laboratory from sites across Irrigation District 023, San Juan del Rio, Queretaro, Mexico was sampled, collected, analyzed, and integrated. The data base, named, NaneSoil, contains information on 900 samples obtained from irrigated plots. NaneSoil cover 10 of the 12 textural classes with the following information: sand, silt, clay contents, bulk density, saturated volumetric water content, field capacity, permanent wilting point and saturated hydraulic conductivity. The aim of this work is to provide the scientific community with sufficient information to perform a large number of analyses, for example, development of pedotransfer functions, calculation of water requirements of plants in soils with similar characteristics, modeling of infiltration, optimal irrigation discharge calculation, among others. The dataset also promotes the scientific community to contribute their own measurements to further strengthen the knowledge of flow in the porous medium.

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