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Impact of Sedimentary Structure and Grain-Size Heterogeneity on Darcy to Non-Darcy Flow Characteristics: A Quantitative Analysis of Forchheimer and Izbash Parameters from Pore-Scale Porous Media

Mondegari Sharifabad, negin
http://rave.ohiolink.edu/etdc/view?acc_num=kent1732973378827125

Abstract Details

2024, MS, Kent State University, College of Arts and Sciences / Department of Earth Sciences.
This study explores the effects of pore-scale sedimentary structure and grain-size heterogeneity on Darcy to non-Darcy flow characteristics, focusing on non-Darcy key parameters such as the inertial coefficient (β), Izbash exponent (θ), critical head gradient (Ic) and critical Reynolds number (Rec). By examining random, graded, and laminated sedimentary structures with varying degrees of heterogeneity, we investigate fluid flow behavior across a range of Reynolds numbers (Re). We simulate flow in different sedimentary structures from laminar to transitional turbulent flow, to understand how structural heterogeneities impact flow dynamics in porous media. Key findings reveal that both the critical head gradient (Ic) and the critical Reynolds number (Rec) exhibit a power law relationship with permeability, which serves as an index of heterogeneity across all sedimentary structures. As Re increases, the inertial coefficient rises, eventually reaching a steady state (βs). Notably, βs also exhibit a power law relationship with permeability in each sedimentary structure. These insights underline the role of sediment heterogeneity in modulating flow characteristics, particularly in non-Darcy flow regimes. This research expands the scope of non-Darcy flow studies by including diverse sedimentary domains, providing a comprehensive understanding of flow dynamics that accounts for both structural and grain-size heterogeneity. The findings are critical for improving predictions of fluid movement in subsurface environments, particularly under conditions where accurate modeling of non-Darcy flow is essential.
Kuldeep Singh (Advisor)
143 p.
Geology
random sedimentary structures, graded sedimentary structures, laminated sedimentary structures, Grain-size Heterogeneity, non-Darcy flow, Reynolds number, inertial coefficient, Izbash exponent

Recommended Citations

Citations

  • Mondegari Sharifabad, N. (2024). Impact of Sedimentary Structure and Grain-Size Heterogeneity on Darcy to Non-Darcy Flow Characteristics: A Quantitative Analysis of Forchheimer and Izbash Parameters from Pore-Scale Porous Media [Master's thesis, Kent State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=kent1732973378827125

    APA Style (7th edition)

  • Mondegari Sharifabad, negin. Impact of Sedimentary Structure and Grain-Size Heterogeneity on Darcy to Non-Darcy Flow Characteristics: A Quantitative Analysis of Forchheimer and Izbash Parameters from Pore-Scale Porous Media . 2024. Kent State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=kent1732973378827125.

    MLA Style (8th edition)

  • Mondegari Sharifabad, negin. "Impact of Sedimentary Structure and Grain-Size Heterogeneity on Darcy to Non-Darcy Flow Characteristics: A Quantitative Analysis of Forchheimer and Izbash Parameters from Pore-Scale Porous Media ." Master's thesis, Kent State University, 2024. http://rave.ohiolink.edu/etdc/view?acc_num=kent1732973378827125

    Chicago Manual of Style (17th edition)

kent1732973378827125
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© 2024, some rights reserved.Creative Commons License Impact of Sedimentary Structure and Grain-Size Heterogeneity on Darcy to Non-Darcy Flow Characteristics: A Quantitative Analysis of Forchheimer and Izbash Parameters from Pore-Scale Porous Media by negin Mondegari Sharifabad is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by Kent State University and OhioLINK.