Two Fluid Model(两流体模型)研究综述
Two Fluid Model 两流体模型 - We propose the system of self-consistent equations for vortex plasma in the framework of hydrodynamic two-fluid model. [1] We compared the results of solving the Taylor --- Couette --- Poiseuille flow problem using the novel two-fluid model and the SARC model. [2] A Euler-Euler two-fluid model coupled with the compressive discretization scheme for the capture of the liquid-gas interface and the Shear Stress Transport turbulence model was used to model the flow numerically. [3] In this study, the thermo-hydrodynamics of direct steam generation in the receiver of parabolic trough solar collector have been investigated using a two-fluid modeling approach. [4] The two-fluid model approach was coupled with an extended version of the uniform conversion model accounting for inert ash fraction. [5] The model used to carry out the numerical simulations stems on the Eulerian–Eulerian two-fluid model. [6] Therefore, the present work compares the numerical performance of a two-fluid model (TFM) and a dense discrete phase model (DDPM) in describing the hydrodynamic behavior of a pilot-scale bubbling bed reactor. [7] This provided a justification for the two-fluid model of Gorter and Casimir, a seminal thermodynamic theory founded on a postulate of zero entropy of the superconducting (S) component of conduction electrons. [8] From the low-pass filtering of the two-fluid model five unclosed sub-grid scale terms arise. [9] The present paper considers simulations of an isothermal counter-current stratified flow case in the channel of the WENKA (Water Entrainment Channel Karlsruhe) experiment using a morphology adaptive multi-field two-fluid modelling framework. [10] The solution algorithm is based on the application of a two-fluid model to the mass, momentum, and energy conservation equations, which are solved using a mixed implicit-explicit integration schema. [11] Since flashing scenarios often accompanying with high void fraction and broad bubble size range, a poly-disperse two-fluid model is recommended. [12] We present a detailed derivation of a simple hydrodynamic two-fluid model, which aims at the description of the phase separation of non-entangled polymer solutions, where viscoelastic effects play a role. [13] We consider the Dirichlet problem for a compressible two-fluid model in three dimensions, and obtain the global existence of weak solution with large initial data and independent adiabatic constants \Gamma,\gamma>=9/5. [14] Bubble flow can be simulated by the two-fluid model and the multi-fluid model based on the Eulerian method. [15] A novel pressure-free two-fluid model formulation is proposed for the simulation of one-dimensional incompressible multiphase flow in pipelines and channels. [16] In this paper, an extension of the classical Baer-Nunziato two-fluid model is presented in order to account for the non-condensable gases. [17] Euler–Euler two-fluid model is used to describe dynamics of particles and fluid flow in the reactor. [18] Two-fluid model based on Euler-Euler approach is utilized to numerically simulate the gas-solid two phases flow within the RCFB. [19] Liquid-solid fluidization characteristics are predicted using a two-fluid model incorporating with the kinetic theory of rough spheres (KTRS) model. [20] The Euler–Euler two-fluid model was applied to simulate the interphase mass transfer in the PDDC. [21] We present a macroscopic two-fluid model to explain the breakdown of flow alignment in nematic liquid crystals under shear flow due to smectic clusters. [22] A Two-Fluid Model (TFM) is employed to describe the particle-fluid and particle-particle interactions while turbulence is described by the ω-based Reynolds Stress Model (RSM). [23] It eliminates the need for the static flow regime transition criteria and flow regime dependent IAC correlations used in closing the two-fluid model and therefore any potential artificial bifurcation or numerical oscillations stemming from these static correlations. [24] In this paper, an Eulerian-Eulerian two-fluid model on the basis of the kinetic theory of granular flow is applied to simulate the flow behavior of cuttings and drilling fluid in a horizontal well with hydraulic pulsed jet technology. [25] The code utilizes a hierarchical reactor system model to build the reactor model more conveniently, applies the general non-equilibrium non-homogeneous Euler-Euler six equation two-fluid models, and adopts a high-efficiency system solving algorithm. [26] We calculate the backreaction for this case and for a wide range of other two-fluid models. [27] High-resolution 3-D numerical simulations were performed using the two-fluid model based on the kinetic theory of granular flow. [28] This paper presents a 3 D numerical model of gas-solid flows in a fluidized bed based on the Two-Fluid Model (TFM). [29] For heavier-than-fluid particles, having settling velocity of the order of the bed friction velocity, the two-fluid model significantly under-estimates the turbulent dispersion of particles. [30] Two-fluid model (TFM) simulation predictions of bubble and particle dynamics in a 3D cylindrical fluidized bed are compared with magnetic resonance imaging (MRI) measurements from a prior study acr. [31] A computational two-fluid model is developed in OpenFOAM® to enable high-fidelity predictive simulation of such suspension flows. [32] In this paper, we study the I-Love-Q relations for superfluid neutron stars for a general relativistic two-fluid model: one fluid being the neutron superfluid and the other a conglomerate of all charged components. [33] Landau thought that atoms are the medium in which excitations are propagated, through a two-fluid model. [34] By employing an improved two-fluid model, cell performance, liquid water distribution and pumping power in a single flow channel are numerically studied. [35] The thermodynamics calculations are based on the Peng- Robinson equation of state, and the momentum equations are based on the Single- Pressure Two-Fluid model. [36] This paper compares the results of the well-known Spalart-Allmares (SA) model and the two-fluid model for the flow around a heated flat plate. [37] In this work, the Eulerian two-fluid model framework was adapted to simulate the enzyme production by the filamentous fungi T. [38] The modeling approaches for the bubbly flow were: standard two-fluid model (TFM), hyperbolic TFM (hTFM), and mixture model (MixtM). [39] In this paper, the effects of resistance coefficient, wall roughness, and friction packing limit on particle velocity and distribution as well as the separation behaviors were studied in a cylindrical hydrocyclone using the two-fluid model. [40] The investigation applies the two-fluid modeling approach along with the kinetic theory of the granular flow. [41] In this paper, the mechanism governing the particle-fluid flow characters in the stepped pipeline is studied by the combined discrete element method (DEM) and computational fluid dynamics (CFD) model (CFD-DEM) and the two fluid model (TFM). [42] Therefore, the objective of this study is to investigate the Two Fluid Model (TFM), the Dense Discrete Phase Model (DDPM), and the Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) with respect to a comprehensive independency study, a sensitivity analysis of the respective submodels and model parameters, a comparison of the simulation results between the different modeling approaches, as well as their computational demand. [43] The hydrodynamics and heat transfer characteristics of the gas molten salt bubble column are numerically analyzed based on the two fluid model, which incorporating the interfacial area transport equation. [44] We also show that the terminal velocity model breaks down around shocks, becoming incompatible with the two fluid model it is derived from. [45] The tasks are divided into three parts based on scales, each focusing on a particular aspect : DNS (direct numerical simulation), CFD-DEM (computational fluid dynamics - discrete element model) and TFM (two fluid model) or MP-PIC (multi-phase - particle in cell). [46] In this work, numerical simulations using the two fluid model (TFM) are performed in an attempt to predict the regime change reported by Gopalan et al. [47] The present studies are carried out in the framework of a two fluid model to extend our past investigations done with a reduced magneto-hydrodynamic (RMHD) model. [48] Numeric study on the hydrodynamics and heat transfer characteristic of the gas molten salt bubble column is carried out based on the two fluid model. [49] Two fluid model is used to describe the dynamics of positive and negative ions. [50]我们在流体动力二流体模型的框架下提出了涡旋等离子体的自洽方程组。 [1] 我们比较了使用新型二流体模型和 SARC 模型求解 Taylor --- Couette --- Poiseuille 流动问题的结果。 [2] Euler-Euler 双流体模型与用于捕获液-气界面的压缩离散方案和剪切应力传递湍流模型相结合，用于对流动进行数值模拟。 [3] 在这项研究中，使用双流体建模方法研究了抛物槽太阳能集热器接收器中直接蒸汽产生的热流体动力学。 [4] 双流体模型方法与考虑惰性灰分的统一转换模型的扩展版本相结合。 [5] 用于进行数值模拟的模型源于欧拉-欧拉二流体模型。 [6] 因此，目前的工作比较了双流体模型 (TFM) 和密集离散相模型 (DDPM) 在描述中试规模鼓泡床反应器的流体动力学行为方面的数值性能。 [7] 这为 Gorter 和 Casimir 的双流体模型提供了依据，这是一种开创性的热力学理论，它建立在传导电子的超导 (S) 分量的零熵假设之上。 [8] 从二流体模型的低通滤波产生了五个未闭合的子网格尺度项。 [9] 本文考虑使用形态自适应多场二流体建模框架模拟 WENKA（卡尔斯鲁厄水夹带通道）实验通道中的等温逆流分层流动情况。 [10] 求解算法基于将二流体模型应用于质量、动量和能量守恒方程，使用混合隐式-显式积分模式求解。 [11] 由于闪蒸场景通常伴随着高空隙率和宽气泡尺寸范围，因此建议使用多分散二流体模型。 [12] 我们提出了一个简单的流体动力学双流体模型的详细推导，该模型旨在描述非缠结聚合物溶液的相分离，其中粘弹性效应发挥作用。 [13] 我们在三维考虑可压缩二流体模型的狄利克雷问题，得到初始数据大且独立绝热常数\Gamma,\gamma>=9/5的弱解的全局存在性。 [14] 气泡流可以用二流体模型和基于欧拉方法的多流体模型来模拟。 [15] 提出了一种新的无压二流体模型公式，用于模拟管道和通道中的一维不可压缩多相流。 [16] 在本文中，提出了经典的 Baer-Nunziato 二流体模型的扩展，以解释不凝性气体。 [17] Euler-Euler 双流体模型用于描述反应器中粒子和流体流动的动力学。 [18] 基于Euler-Euler方法的双流体模型用于数值模拟RCFB内的气固两相流动。 [19] 使用结合粗糙球体动力学理论 (KTRS) 模型的二流体模型来预测液固流化特性。 [20] Euler-Euler 双流体模型用于模拟 PDDC 中的相间传质。 [21] 我们提出了一个宏观的二流体模型来解释向列液晶在剪切流下由于近晶簇引起的流动排列的破坏。 [22] 双流体模型 (TFM) 用于描述粒子-流体和粒子-粒子相互作用，而湍流由基于 ω 的雷诺应力模型 (RSM) 描述。 [23] 它消除了对用于闭合二流体模型的静态流态过渡标准和依赖于流态的 IAC 相关性的需要，因此消除了源自这些静态相关性的任何潜在的人为分叉或数值振荡。 [24] 本文采用基于颗粒流动动力学理论的欧拉-欧拉二流体模型，利用水力脉冲射流技术模拟水平井岩屑和钻井液的流动行为。 [25] 代码利用分层反应器系统模型，更方便地建立反应器模型，应用一般非平衡非齐次欧拉-欧拉六方程二流体模型，采用高效系统求解算法。 [26] 我们计算了这种情况和其他多种二流体模型的逆反应。 [27] 使用基于颗粒流动动力学理论的二流体模型进行高分辨率 3-D 数值模拟。 [28] 本文提出了一种基于双流体模型（TFM）的流化床气固流动三维数值模型。 [29] 对于重于流体的颗粒，其沉降速度为床摩擦速度量级，双流体模型显着低估了颗粒的湍流分散。 [30] 将 3D 圆柱形流化床中气泡和粒子动力学的双流体模型 (TFM) 模拟预测与先前研究 acr 的磁共振成像 (MRI) 测量结果进行了比较。 [31] 在 OpenFOAM® 中开发了计算双流体模型，以实现对此类悬浮液流的高保真预测模拟。 [32] 在本文中，我们研究了广义相对论二流体模型中超流体中子星的 I-Love-Q 关系：一种流体是中子超流体，另一种是所有带电成分的聚集体。 [33] Landau 认为原子是通过双流体模型传播激发的介质。 [34] 通过采用改进的双流体模型，对单个流道中的电池性能、液态水分布和泵送功率进行了数值研究。 [35] 热力学计算基于 Peng-Robinson 状态方程，动量方程基于单压力二流体模型。 [36] 本文比较了著名的 Spalart-Allmares (SA) 模型和加热平板周围流动的双流体模型的结果。 [37] 在这项工作中，欧拉双流体模型框架适用于模拟丝状真菌 T 的酶生产。 [38] 气泡流的建模方法有：标准二流体模型 (TFM)、双曲线 TFM (hTFM) 和混合模型 (MixtM)。 [39] 本文采用双流体模型研究了阻力系数、壁面粗糙度和摩擦堆积极限对颗粒速度和分布以及分离行为的影响。 [40] 该研究应用了两流体建模方法以及颗粒流动的动力学理论。 [41] 本文采用离散元法(DEM)与计算流体动力学(CFD)模型(CFD-DEM)和二流体模型(TFM)相结合的方法研究了阶梯式管道中颗粒-流体流动特性的机理。 [42] 因此，本研究的目的是研究两流体模型 (TFM)、稠密离散相模型 (DDPM) 和计算流体动力学-离散元方法 (CFD-DEM)，以进行全面的独立性研究，即各个子模型和模型参数的敏感性分析，不同建模方法之间的仿真结果比较，以及它们的计算需求。 [43] 基于结合界面面积输运方程的二流体模型，对气体熔盐泡柱的流体力学和传热特性进行了数值分析。 [44] 我们还表明，终端速度模型在冲击周围发生故障，与它所派生的两种流体模型不兼容。