A coupled model for water flow, airflow and heat flow in deformable porous media

1995 ◽  
Vol 5 (6) ◽  
pp. 531-547 ◽  
Author(s):  
Bernard A. Schrefler ◽  
Xiaoyong Zhan ◽  
Luciano Simoni
Keyword(s):  
Porous Media ◽  
Heat Flow ◽  
Water Flow ◽  
Coupled Model ◽  
Deformable Porous Media

Fluid Flow Through a Class of Highly-Deformable Porous Media. Part II: Experiments With Water

1981 ◽  
Vol 103 (3) ◽  
pp. 440-444 ◽  
Author(s):  
G. S. Beavers ◽  
K. Wittenberg ◽  
E. M. Sparrow
Keyword(s):  
Porous Media ◽  
Fluid Flow ◽  
Water Flow ◽  
Flow Measurements ◽  
Static Compression ◽  
Deformable Porous Media ◽  
Flow Parameters ◽  
Flow Through ◽  
Water Saturated ◽  
Aging Phenomena

Experiments were performed to explore the relationships between liquid-saturated and gas-saturated deformable porous media. Water and air served as the participating fluids. From quasi-static compression experiments (no fluid flow), it was found that the force required to compress a given deformable porous material is substantially less when the material is water-saturated than when it is in air. Water flow measurements yielded flow rate-pressure drop results which are compared with analytical predictions. The predictions were based on input values of certain material flow parameters which had been determined in previous air flow experiments. The observed level of agreement between the predictions and the water flow measurements lends support to the notion that the flow parameters are independent of the participating fluid. In the course of establishing the effects of the participating fluid, the stress relaxation and aging phenomena were quantified. The former is a relaxation of the internal stress in a deformable material which occurs after a compression is imposed and maintained. The latter is a process whereby the deformation characteristics change when the material is subjected to a succession of compressions.

Saturated and Unsaturated Water Flow in Inclined Porous Media

2004 ◽  
Vol 9 (2) ◽  
pp. 91-102 ◽  
Author(s):  
Scott W. Weeks ◽  
Graham C. Sander ◽  
Roger D. Braddock ◽  
Chris J. Matthews
Keyword(s):  
Porous Media ◽  
Water Flow ◽  
Unsaturated Water Flow

scholarly journals Dynamic loading of deformable porous media can induce active solute transport

2008 ◽  
Vol 41 (15) ◽  
pp. 3152-3157 ◽  
Author(s):  
Michael B. Albro ◽  
Nadeen O. Chahine ◽  
Roland Li ◽  
Keith Yeager ◽  
Clark T. Hung ◽  
...  
Keyword(s):  
Porous Media ◽  
Solute Transport ◽  
Dynamic Loading ◽  
Deformable Porous Media

Bi-directional Coupling of an Unstructured Triangular Meshes-based Integrated Hydrodynamic Model for Heterogeneous Feature-based Urban Flood Simulation

2021 ◽  
Author(s):  
Guoqiang Peng ◽  
Zhuo Zhang ◽  
Tian Zhang ◽  
Zhiyao Song ◽  
Arif Masrur
Keyword(s):  
Water Flow ◽  
Urban Areas ◽  
Overland Flow ◽  
Coupled Model ◽  
Flood Simulation ◽  
Urban Flood ◽  
Essential Condition ◽  
Flow Processes ◽  
Feature Based ◽  
Heterogeneous Feature

Abstract Urban pluvial flash floods have become a matter of widespread concern, as they severely impact people’s lives in urban areas. Hydrological and hydraulic models have been widely used for urban flood management and urban planning. Traditionally, to reduce the complexity of urban flood modelling and simulations, simplification or generalization methods have been used; for example, some models focus on the simulation of overland water flow, and some models focus on the simulation of the water flow in sewer systems. However, the water flow of urban floods includes both overland flow and sewer system flow. The overland flow processes are impacted by many different geographical features in what is an extremely spatially heterogeneous environment. Therefore, this article is based on two widely used models (SWMM and ANUGA) that are coupled to develop a bi-directional method of simulating water flow processes in urban areas. The open source overland flow model uses the unstructured triangular as the spatial discretization scheme. The unstructured triangular-based hydraulic model can be better used to capture the spatial heterogeneity of the urban surfaces. So, the unstructured triangular-based model is an essential condition for heterogeneous feature-based urban flood simulation. The experiments indicate that the proposed coupled model in this article can accurately depict surface waterlogged areas and that the heterogeneous feature-based urban flood model can be used to determine different types of urban flow processes.

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