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Multiscale Finite Volume Method for Simulation of Compressible Multiphase Flow in Porous Media
, M.Sc. Thesis Sharif University of Technology ; Jamshidi, Saeed (Supervisor) ; Masihi, Mohsen (Supervisor)
Abstract
Today, due to a massive increase in accuracy of reservoir characterization models, multiphase flow simulation on real permeability fields faces a serious challenge. Using multiscale methods in reservoir flow simulation of a heterogeneous environment has led to huge speed-up of the simulation. In multiscale methods, instead of replacing a heterogeneous medium by an equivalent homogeneous medium, used in upscaling, the problem is solved on the original resolution. In this thesis, multiscale finite volume method (MSFV) has been used to simulate flow and saturation behavior of a black oil model. Unlike the original multiscale finite volume methods that were unable to solve compressible fluid...
High-throughput low-complexity unified multipliers over GF(2m) in dual and triangular bases
, Article IEEE Transactions on Circuits and Systems I: Regular Papers ; Volume PP, Issue 99 , 2016 ; 15498328 (ISSN) ; Bayat Sarmadi, S ; Farmani, M ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
Abstract
Multiplication is an essential operation in cryptographic computations. One of the important finite fields for such computations is the binary extension field. High-throughput low-complexity multiplication architectures lead to more efficient cryptosystems. In this paper, a high-throughput low-complexity unified multiplier for triangular and dual bases is presented, and is referred to as basic architecture. This multiplier enjoys slightly simpler and more regular structure due to use of the mentioned bases. Additionally, structurally improved architectures have been proposed, which have smaller time complexity than basic ones. This is achieved by the use of parallel processing method....