The temporal discretization scheme is one important ingredient of efficient simulator for twophase flow in the fractured porous media. The application of single-scale temporal scheme is restricted by the rapid changes of the pressure and saturation in the fractured system with capillarity. In this paper, we propose a multi-scale time splitting strategy to simulate multi-scale multi-physics proc...

References 1Al Taweel, A. M., and Landau, J., “Turbulence Modulation in TwoPhase Jets,” International Journal of Multiphase Flow, Vol. 3, No. 2, 1977, pp. 341–351. 2Gore, R. A., and Crowe, C. T., “Effects of Particle Size on Modulating Turbulent Intensity,” International Journal of Multiphase Flow, Vol. 15, No. 2, 1989, pp. 279–285. 3Schreck, S., andKleis, S. J., “ModiŽ cationofGrid-GeneratedTu...

In this paper we formulate and test numerically a fully-coupled discontinuous Galerkin (DG) method for incompressible two-phase flow with discontinuous capillary pressure. The spatial discretization uses the symmetric interior penalty DG formulation with weighted averages and is based on a wetting-phase potential / capillary potential formulation of the twophase flow system. After discretizing ...

This paper explores the two-phase cooling performance of a hybrid cooling scheme in which a linear array of micro-jets deposits liquid gradually along each channel of a micro-channel heat sink. The study also examines the benefits of utilizing differently sized jets along the micro-channel. Three micro-jet patterns, decreasing-jet-size (relative to center of channel), equal-jet-size and increas...

We present a simple, but surprisingly effective, method of self-training a twophase parser-reranker system using readily available unlabeled data. We show that this type of bootstrapping is possible for parsing when the bootstrapped parses are processed by a discriminative reranker. Our improved model achieves an f -score of 92.1%, an absolute 1.1% improvement (12% error reduction) over the pre...

The action systems framework has recently been applied to the area of synchronous VLSI design. Synchronous action systems explicitly model synchronous twophase behavior, making a formal description transparent, in the sense that its hardware implementation can be obtained by a direct mapping. The design methodology is based on correctly transformations of asynchronous circuit descriptions into ...

Adding surfactant into the displacing aqueous phase during surfactant-enhanced aquifer remediation of NAPL contamination and in chemical flooding oil recovery significantly changes interfacial tension (IFT) (σ) on water–oil interfaces within porous media. The change in IFT may have a large impact on relative permeability for the two-phase flow system. In most subsurface flow investigations, how...

Simulation models for unitary air conditioners and heat pumps usually can not provide accurate predictions in the case of two-phase refrigerant entering the compressor or fixed-area expansion device. This paper focuses on improving modeling methods in these situations. The study utilized extensive laboratory tests and detailed modeling of two unitary air conditioners, one using R-410A and the o...

We will present some recent work on phase-field models for twophase fluids with variable densities. The Quasi-Incompressible Navier-Stokes-Cahn-Hilliard model with the gravitational force being incorporated in the thermodynamically consistent framework will be investigated. Under a minor reformulation of the system we show that there is a continuous energy law underlying the system. For the ref...

In this paper we present a clustering method for XML documents. Our step is twophase based: we first automatically extract the structure from the document; we then use it as model of representation to classify the document that it represents. The matching of the documents’ structures is based on the calculation of their similarities. For the experimentation we used the INEX. MOTS-CLÉS: Clusteri...