Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 29 for “"Flow through porous media"”.
-
Inhomogeneous Stokes flow through porous media
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1995.
-
Multiphase immiscible flow through porous media
… finite element model is developed for multiphase flow through soil involving three immiscible fluids: namely air, water, and an organic fluid. A variational method is employed for the finite element formulation corresponding to the coupled differential equations governing the flow of the three …
-
Periodic cell models of flow through porous media
… problems are analyzed to study the microscopic flow within porous media. In Part 1, the primary focus is on the flow near the surface of a porous body. The idealized system consists of two-dimensional media of infinite and semi-infinite periodic lattices of cylindrical inclusions. The solution …
-
Velocity fluctuations in slow flow through porous media
… study the spatial statistical properties of slow flow through porous media on the pore scale by a combination of numerical simulation and theoretical arguments. I demonstrate that the flow patterns undergo a transition from swirls to strongly focused and channel-like patterns for decreasing …
-
Lattice-Boltzmann studies of multiphase flow through porous media
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1992.
-
Macroscopic Turbulence Modeling and Simulation for Flow Through Porous Media
… out by simulating a free stream entering the porous medium under consideration. Simulations are carried out for 75% and 95% porosities. Different inlet turbulence intensities are imposed on the free stream to test the model under different macroscopic boundary conditions. Microscopic RANS …
-
Flow through porous media : from mixing of fluids to triggering of earthquakes
… requires understanding of coupling between flow and deformation processes. In this Dissertation, we study flow through porous media in two different contexts: effect of viscosity on mixing of fluids, and triggering of earthquakes due to coupling between flow and deformation. We show that …
-
Numerical simulation of fluid flow through porous media using the immersed boundary method
… Navier-Stokes solver has been developed. The flow solver is used to analyze the two-dimensional, unsteady and viscous flow at low Reynolds numbers through packings of ordered or disordered arrays of mono-, bi- and polydisperse cylinders and ellipses. A variety of verification problems are …
-
Two-Phase Flow at the Pore-Scale Using the Volume of Fluid Method
… is to use digital rock physics for understanding flow through porous media. Pore-scale simulations were conducted using the Finite Volume method to solve the Navier-Stokes equations, and the Volume of Fluid method for capturing interface. A workflow is provided, in which primary drainage …
-
An optimization approach to well spacing for gas storage reservoirs
… equation describing compressible fluid flow through porous media has been developed with a view to apply it to the problems of optimum well spacing. An equilateral grid system has been employed to enable uniform well spacing for any number of wells. A numerical model has been developed …
-
Simulação do fenômeno de infiltração em modelos chuva-vazão
… Based on physical principles of water flow through porous media, an extension of Green & Ampt's equation (Morel-Seytoux e Khanji,1974; Morel-Seytoux, 1978) was been used to estimate infiltrated water and excess rainfall volumes. Simulated values showed good agreement when compared with …
-
Development and verification of a resin film infusion/resin transfer molding simulation model for fabrication of advanced textile composites
… preform compaction. Formulations of the resin flow problem are given using the finite element/control volume technique based on Darcy's Law of flow through porous media. This technique allows for the efficient numerical calculation of the advancing resin front within the preform materials. The …
-
Modernized Approach For Generating Micro-Layering And Macro-Heterogeneous Structures In Porous Media For Use In Transmitted-Light Method Flow Visualization Experiments
Image capturing in flow experiments has been used for fluid mechanics research since the early 1970s. Interactions of fluid flow between the vadose zone and permanent water table are of great interest to researchers because this zone is responsible for all recharge waters, pollutant transport and …
-
An infiltration/cure model for manufacture of fabric composites by the resin infusion process
… of cure and viscosity, and the infiltration flow front position as a function of time. The model also predicts the final panel thickness, fiber volume fraction, and resin mass for full saturation as a function of compaction pressure. The infiltration model is based on D’arcy’s law for flow …
-
Modeling of Real Gas Flow Behavior in Porous Media
… investigation in the behavior of real gas flow through porous media. Starting from the most fundamental flow equation a new real gas potential is implemented to transform the nonlinear flow equation into a quasi-linear diffusivity equation. The effects of pressure-dependent fluid and rock …
-
Design and optimization of micropumps using electrorheological and magnetorheological fluids
… to provide optimal sealing performance. Darcy flow through porous media and Bingham flow in a curved channel with a rectangular cross section have been used to model the MR fluid flow exposed to certain magnetic field intensity. Static and dynamic magnetic sealing performance is investigated …
-
An active landfill design for indefinite waste storage
… cell to insure that a potential for convective inflow exists everywhere across an encapsulating barrier which tends to counter the potential for outward dispersion through the barrier. A computer algorithm based on the finite element method has been developed in the BASIC language to aid in the …
-
A cure process model for resin transfer molding of advanced composites
… assumption that infiltration can be described as flow through a porous medium. Flow through porous media, as governed by D’Arcy’s law, depends on the viscosity of the fluid and the microstructure of the interconnected pores. Infiltration by thermosetting resin systems is assumed to behave as a …
-
Surface Water and Groundwater Hydraulics, Exchange, and Transport During Simulated Overbank Floods Along a Third-Order Stream in Southwest Virginia
… field evaluations of surface and groundwater flows during overbank floods are rare. We conducted five sets of experimental floods to mimic floodplain reconnection. Experimental floods entailed pumping stream water onto an existing floodplain swale, and were conducted throughout the year to …
Page 1 of 2