Search Results - subject:"Multiphase flow"

Multiphase inverse modeling: An Overview

Finsterle, S. - 2009

Inverse modeling is a technique to derive model-related parameters from a variety of observations made on hydrogeologic systems, from small-scale laboratory experiments to field tests to long-term geothermal reservoir responses. If properly chosen, these observations contain information about...

Persistent link: https://www.econbiz.de/10009437280

VOLCANIC RISK ASSESSMENT - PROBABILITY AND CONSEQUENCES

G.A. Valentine; F.V. Perry; S. Dartevelle - 2008

structures subjected to conditions of explosive eruption. Process models (e.g., multiphase flow) are important for testing the …

Persistent link: https://www.econbiz.de/10009436263

iTOUGH2: From parameter estimation to model structure identification

Finsterle, Stefan - 2008

iTOUGH2 provides inverse modeling capabilities for the TOUGH2 family of nonisothermal multiphase flow simulators. It …

Persistent link: https://www.econbiz.de/10009437359

NUMERICAL MODELING OF CAPILLARY–GRAVITY WAVES USING THE PHASE FIELD METHOD

SOHAIL, AYESHA; WAJID, HAFIZ ABDUL; RASHIDI, MOHAMMAD MEHDI - In: Surface Review and Letters (SRL) 21 (2014) 03, pp. 1450036-1

In this paper, we present a numerical model based on the widely used finite element formulation to analyze in detail the effect of surface active agents on capillary–gravity wave parameters such as phase velocity and wave amplitude. Moreover, the effect of a physicochemical parameter, which is...

Persistent link: https://www.econbiz.de/10010883168

Efficient modeling of seismic signature of patchy saturation for time lapse monitoring of carbon sequestrated deep saline reservoirs

Padhi, Amit; Mallick, Subhashis; Behzadi, Hamid; … - In: Applied Energy 114 (2014) C, pp. 445-455

Various mechanisms controlling the multiphase flow in a real geological porous medium such as those associated with … seismic modeling, we demonstrate that the patchy nature of the saturation distribution, resulting from small-scale multiphase … flow features commonly neglected in reservoir simulation exercises, can be seismically modeled with an equivalent stack of …

Persistent link: https://www.econbiz.de/10010729392

Multiphase flow modeling of spinodal decomposition based on the cascaded lattice Boltzmann method

Leclaire, Sébastien; Pellerin, Nicolas; Reggio, Marcelo; … - In: Physica A: Statistical Mechanics and its Applications 406 (2014) C, pp. 307-319

A new multiphase lattice Boltzmann model based on the cascaded collision operator is developed to study the spinodal decomposition of critical quenches in the inertial hydrodynamic regime. The proposed lattice Boltzmann model is able to investigate simulations of multiphase spinodal...

Persistent link: https://www.econbiz.de/10011059040

Numerical modeling for stratified gas–liquid flow and heat transfer in pipeline

Duan, Jimiao; Gong, Jing; Yao, Haiyuan; Deng, Tao; Zhou, Jun - In: Applied Energy 115 (2014) C, pp. 83-94

A numerical three-dimensional non-isothermal hydrodynamic and thermal modeling based on the unidirectional flow analysis of stratified flow in the circular cross section pipe is developed and tested by experimental data. The model could solve the steady axial momentum equation and heat transfer...

Persistent link: https://www.econbiz.de/10011040526

Evaluation of force implementation in pseudopotential-based multiphase lattice Boltzmann models

Sun, Kai; Wang, Tianyou; Jia, Ming; Xiao, Gang - In: Physica A: Statistical Mechanics and its Applications 391 (2012) 15, pp. 3895-3907

The Lattice Boltzmann method (LBM) has proven to be a promising approach in handling multiphase flow problems. In the …

Persistent link: https://www.econbiz.de/10010591127

Numerical analysis of injector flow and spray characteristics from diesel injectors using fossil and biodiesel fuels

Battistoni, Michele; Grimaldi, Carlo Nazareno - In: Applied Energy 97 (2012) C, pp. 656-666

The aim of the paper is the comparison of the injection process with two fuels, a standard diesel fuel and a pure biodiesel, methyl ester of soybean oil. Multiphase cavitating flows inside injector nozzles are calculated by means of unsteady CFD simulations on moving grids from needle opening to...

Persistent link: https://www.econbiz.de/10010702438

R/S method for unevenly sampled time series: Application to detecting long-term temporal dependence of droplets transiting through a fixed spatial point in gas–liquid two-phase turbulent jets

Ji, Li-Jun; Zhou, Wei-Xing; Liu, Hai-Feng; Gong, Xin; … - In: Physica A: Statistical Mechanics and its Applications 388 (2009) 17, pp. 3345-3354

We perform rescaled range analysis upon the signals measured by a Dual Particle Dynamical Analyzer in gas–liquid two-phase turbulent jets. A novel rescaled range analysis is proposed to investigate these unevenly sampled signals. The Hurst exponents of velocity and other passive scalars in the...

Persistent link: https://www.econbiz.de/10011064701