Geo-Congress 2020
Numerical Analysis of Heat Transfer in Layered Saturated Soil
Publication: Geo-Congress 2020: Modeling, Geomaterials, and Site Characterization (GSP 317)
ABSTRACT
This paper presents numerical analyses of one-dimensional heat transfer in layered saturated soil with effective porosity and steady fluid flow using the numerical model HT1. The model characterizes the soil using separate columns to represent the solid matrix and mobile pore fluid components, and a series-parallel approach to model soil thermal conductivity. The model accounts for advection, conduction, and thermal mechanical dispersion assuming local thermal equilibrium between solid and fluid phases, and has the capability to analyze the effects of each mechanism separately. Numerical simulations are presented to illustrate the effects of effective porosity, discharge velocity, and layer heterogeneity on heat transfer behavior. Numerical solutions and analytical solutions are in excellent agreement.
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ACKNOWLEDGEMENTS
Financial support for this investigation was provided by Grant No. CMMI-1622781 from the U.S. National Science Foundation and is gratefully acknowledged.
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Information & Authors
Information
Published In
Geo-Congress 2020: Modeling, Geomaterials, and Site Characterization (GSP 317)
Pages: 78 - 85
Editors: James P. Hambleton, Ph.D., Northwestern University, Roman Makhnenko, Ph.D., University of Illinois at Urbana-Champaign, and Aaron S. Budge, Ph.D., Minnesota State University, Mankato
ISBN (Online): 978-0-7844-8280-3
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: Feb 21, 2020
ASCE Technical Topics:
- Analysis (by type)
- Engineering fundamentals
- Engineering mechanics
- Flow (fluid dynamics)
- Fluid dynamics
- Fluid mechanics
- Geomechanics
- Geotechnical engineering
- Heat flow
- Heat transfer
- Hydrologic engineering
- Layered soils
- Models (by type)
- Numerical analysis
- Numerical models
- Saturated soils
- Soft soils
- Soil analysis
- Soil mechanics
- Soil properties
- Soils (by type)
- Thermal analysis
- Thermodynamics
- Water and water resources
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