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.
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Showing 1 to 10 of 10 for “"Coupled Method"”.
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Simulation of Rarefied Flows in MEMS Devices by Atomistic and Multiscale Methods
… fluid flow is studied. The Schwarz alternating method is utilized for coupling, and the continuum equations are solved using the finite cloud method. The agreement of the coupled method with DSMC is shown and the dependence of the convergence of the DSMC/Stokes coupling on the overlap, DSMC …
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Fully kinetic particle-in-cell simulations of plasma-surface-dust interactions for lunar exploration
… environment. We will consider both uncoupled and coupled method in the simulations. In uncoupled method, a steady state electric field is obtained through FD-PIC simulations and provided to simulate the charged dust transport, indicting that the charged dust transport does not …
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The evaluation of embankment stresses by coupled boundary element - finite element method
Numerical methods and specifically the finite element method have improved significantly since their introduction in the 60's. These advances were mainly in: 1) introducing higher-order elements, 2) developing effective solution schemes, 3) developing sophisticated means of modeling the …
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Development of inverse methods for reconstruction of flight environments on ablators
… but it is generally poorly predicted. Two methods are proposed in this dissertation to address these issues. To address reconstructions of deeply located measurements, a hybrid sequential/whole domain algorithm called the sequential subdomain algorithm is presented and demonstrated to show …
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Comprehensive evaluation of a novel EOR method-coupling low salinity water flooding and preformed particle gel to enhance oil recovery in fractured reservoirs
… be a successful and inexpensive fluid diversion method when used to plug the thief zones and thereby improve sweep efficiency in reservoirs. However, particle gel treatment can only be used to plug fractures or high permeable channels to improve sweep efficiency and has little effect on …
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A new numerical method for the problem of nonlinear long-short wave interactions
… thesis is the development of a new numerical method to address the problem of nonlinear interactions of free-surface gravity waves. More specifically, this study addresses the case of wave interactions of short waves ridding on longer waves up to second order of nonlinearity M. The study of …
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A coupled depth-averaged and three-dimensional numerical model for flow-like landslides interacting with obstacles
L'abstract è presente nell'allegato / the abstract is in the attachment
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Eine numerische Methode zur Bestimmung erweiterter flugdynamischer Derivativa durch aerostrukturdynamische Simulation
Starting from a Finite-Volume Method solving the Navier-Stokes equations for compressible fluid flow and a Finite-Element Method based on quasi one-dimensional Timoshenko beam elements for structural dynamics, a numerical method for coupled aeroelastic problems of flight vehicles is developed. …
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Simulation of free-surface flows and development of an improved particle method
Undergoing development for decades, the mesh-free methods, both Smoothed Particle Hydrodynamics (SPH) and the Moving Particle Semi-implicit method (MPS), have become useful numerical tools for studying free-surface flows in various engineering problems. They are able to easily simulate complicated …
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Investigation of nanoscale mechanisms driving erosion and pitting in graphitic carbon
… introduced between the particle-based gas flow method, direct simulation Monte Carlo (DSMC), and the material evolution method, AKMC, at the nanoscale. Simulated gas particles in DSMC have a one-to-one mapping with real atoms or molecules, and the two methods are spatially coupled such that …