Abstract The study of miscible flow is an important topic in the field petroleum science and engineering. displacement hydrocarbon-like oil by a solvent such as carbon dioxide helps to enhance recovery hydrocarbon. use CO2 reduce viscosity resident fluids like oil, In addition, would its accumulation atmosphere help green environment. production hydrocarbons secondary or tertiary phase follows mostly flow. Computational Fluid Dynamics (CFD) simulations can with better understanding enchanch...

Abstract The occurrence of fluid flow near a wellhead is the major concern petroleum industry, as pressure drop, loss formation, and other variables interest are mostly affected in this region. flows from hydrocarbon reservoir to wellbore can be characterized laminar turbulent; thus, it important model phenomenon with integrated wellbore-reservoir model. Using 3D Navier–Stokes equations, an created study, incorporates formation damage zone. For porous-porous porous-fluid interfaces, General...

It has been estimated that the number of spatial modes (or nodal values) required to uniquely determine a two-dimensional turbulent flow at specific time is finite, and bounded by Re 4/3 for forced turbulence decaying turbulence. The usual computational estimate space–time calculated ${\cal N}\sim{Re}^{3/2}$ . These bounds neglect intermittency, it not known how sharp they are. In this paper we use an adaptive multi-scale wavelet collocation method first N}$ necessary represent as function...

The transfer of turbulence kinetic energy from large to small scales occurs through vortex stretching. Also, statistical properties the subgrid-scale fluxes depend on alignment vorticity vector with principal strain axis. A heuristic analysis present study indicates that vortex-stretching and second invariant velocity gradient tensor provide a scale-adaptive parameterization stresses local in wakes wind turbines. scale-adaptivity underlies restricted Euler dynamics filtered motion where...

Abstract An improved treatment of advection is essential for atmospheric transport and chemistry models. Eulerian treatments are generally plagued with instabilities, unrealistic negative constituent values, diffusion, dispersion errors. A higher-order model improves one error at significant cost but magnifies another error. The semi-Lagrangian models too high many applications. Furthermore, traditional trajectory “Lagrangian” do not solve both the dynamical tracer equations simultaneously...

A weighted residual collocation methodology for simulating two-dimensional shear-driven and natural convection flows has been presented. Using a dyadic mesh refinement, the generates basis multiresolution scheme to approximate fluid flow. To extend benefits of refinement approach field computational dynamics, this article studied an iterative interpolation construction differentiation function in that is finite collection rectangular elements. We have verified that, on given mesh,...

In a large eddy simulation (LES), resolving the wide spectrum of turbulent eddies from O(m) to O(km) in atmospheric boundary layer (ABL) requires O(109) computational degrees freedom; however, these are intermittent space and time. this research, we take advantage spatial intermittency neutrally stratified Ekman layer, study development novel LES methodology. Using second generation wavelet transform, proposed model filters into distinct groups significant insignificant eddies. We show that...

This article investigates the impact of atmospheric turbulence on wind farms in mountainous regions using Scale-Adaptive Large-Eddy Simulation (SALES) combined with immersed boundary method. An array 25 Gaussian hills was considered to mimic terrain, and three cases were simulated: layer flow over complex full-scale turbines positioned hilltops, 125 across landscape. These simulations captured intrinsic spatial inhomogeneity caused by topographic features challenging assumption horizontally...

The development of an efficient computational methodology for transient heat and mass transfer applications is challenging. When a solution localized on the fraction domain, appropriate adaptive mesh method could minimize work. In this article, we propose novel adaptive-mesh multiresolution algorithm momentum energy equations. nonlinear dynamics between velocity temperature fields are modeled by solving coupled system equations simultaneously, where rate convergence has been optimized so...

Abstract Atmospheric motions are generally characterized by a wide range of multiple length and time scales, numerical method must use fine grid to resolve such scales. Furthermore, very requires an extremely small step in order keep explicit integration schemes stable. Therefore, high-resolution meteorological simulations expensive. A novel multiscale modeling approach is, therefore, presented for simulating atmospheric flows. In this approach, prognostic variable representing highly...

Abstract Formation damage in petroleum reservoirs is a combination of many complicated phenomena. The formation reduces the productivity index significantly. mechanisms may occur from stage drilling process to tertiary oil recovery stage. This study investigates wells due shooting well completion. conducted with numerical and experimental investigations. set prototype. Two techniques are considered for simulations: one ANSYS-CFX other computational methodology which based on weighted...

In large eddy simulation (LES) of turbulent flows, the most critical dynamical processes to be considered by dynamic subgrid models account for an average cascade kinetic energy from largest smallest scales flow is not fully clear. Furthermore, evidence vortex stretching being primary mechanism out question. this article, we study some essential statistical characteristics and its role in approaches modeling subgrid-scale turbulence. We have compared interaction stresses with filtered...

This article investigates the applications of wavelet transforms and machine learning methods in studying turbulent flows. The wavelet-based hierarchical eddy-capturing framework is built upon first principle physical models. Specifically, coherent vortex simulation method based on Taylor hypothesis, which suggests that energy cascade occurs through stretching. In contrast, adaptive collocation relies Richardson where self-amplification strain field a breakdown large eddies drive cascade....

The analysis of fluid flow near the wellbore region a hydrocarbon reservoir is complex phenomenon. pressure drop and rates change in with time, understanding this system important. Besides existing theoretical experimental approaches, computational dynamics studies can help nature from into wellbore. In research, model using three-dimensional Navier–Stokes equations presented for analyzing around Pressure velocity are coupled single which solved by an algebraic multigrid method optimal cost....

The multiphase flow mechanism in miscible displacement through porous media is an important topic various applications, such as petroleum engineering, low Reynolds number suspension flows, dusty gas dynamics, and fluidized beds. To simulate volume averaging spatial operators are considered to incorporate pressure drag skin friction experienced by a medium. In this work, streamline-based Lagrangian methodology extended for efficient numerical approach handle dispersion diffusion of solvent...

We study the nonlinear parabolic equations for travelling wave solutions of Burger's equations. The purpose present work is to various types describing waves and those are based on focus describe analytic solution in special pattern using tan-cot function method. discuss about inviscid viscous version equation fluid flow investigate effects internal friction a via Reynolds number. By changing velocity amplitude, nature flows with shock disturbance observed. For numerical solutions,...

Abstract The understanding of rock characteristic and fluid flow behavior at the near-wellbore region is an important topic. Triaxial experiment setup can help to investigate these properties. In this research, a new triaxial experimental has been developed where higher scale parameters such as reservoir pressure, comparatively larger core sample be used. High permeable synthetic porous samples are prepared validate device. validated with water base fluid. validation test, real First, in...