scholarly journals Energy dependence of directed flow inAu+Aucollisions from a multiphase transport model

2010 ◽  
Vol 81 (1) ◽  
Author(s):  
J. Y. Chen ◽  
J. X. Zuo ◽  
X. Z. Cai ◽  
F. Liu ◽  
Y. G. Ma ◽  
...  
Keyword(s):  
Energy Dependence ◽  
Transport Model ◽  
Directed Flow ◽  
Multiphase Transport

scholarly journals Directed flow in an extended multiphase transport model

2018 ◽  
Vol 98 (2) ◽  
Author(s):  
Chong-Qiang Guo ◽  
He Liu ◽  
Jun Xu
Keyword(s):  
Transport Model ◽  
Directed Flow ◽  
Multiphase Transport

Explore the QCD phase transition phenomena from a multiphase transport model

2018 ◽  
Vol 62 (1) ◽  
Author(s):  
XiaoHai Jin ◽  
JinHui Chen ◽  
ZiWei Lin ◽  
GuoLiang Ma ◽  
YuGang Ma ◽  
...  
Keyword(s):  
Phase Transition ◽  
Transport Model ◽  
Multiphase Transport ◽  
Qcd Phase Transition

scholarly journals Density Functional Hydrodynamics in Multiscale Pore Systems: Chemical Potential Drive

2020 ◽  
Vol 146 ◽  
pp. 01001
Author(s):  
Oleg Dinariev ◽  
Nikolay Evseev ◽  
Denis Klemin
Keyword(s):  
Density Functional ◽  
Fluid Transport ◽  
Chemical Potential ◽  
Transport Model ◽  
Effective Model ◽  
Pore Scale ◽  
Multiphase Transport ◽  
Novel Approach ◽  
Scale Modelling ◽  
Significant Generalization

We use the method of density functional hydrodynamics (DFH) to model compositional multiphase flows in natural cores at the pore-scale. In previous publications the authors demonstrated that DFH covers many diverse pore-scale phenomena, starting from those inherent in RCA and SCAL measurements, and extending to much more complex EOR processes. We perform the pore-scale modelling of multiphase flow scenarios by means of the direct hydrodynamic (DHD) simulator, which is a numerical implementation of the DFH. In the present work, we consider the problem of numerical modelling of fluid transport in pore systems with voids and channels when the range of pore sizes exceed several orders of magnitude. Such situations are well known for carbonate reservoirs, where narrow pore channels of micrometer range can coexist and interconnect with vugs of millimeter or centimeter range. In such multiscale systems one cannot use the standard DFH approach for pore-scale modeling, primarily because the needed increase in scanning resolution that is required to resolve small pores adequately, leads to a field of view reduction that compromises the representation of large pores. In order to address this challenge, we suggest a novel approach, in which transport in small-size pores is described by an upscaled effective model, while the transport in large pores is still described by the DFH. The upscaled effective model is derived from the exact DFH equations using asymptotic expansion in respect to small-size characterization parameter. This effective model retains the properties of DFH like chemical and multiphase transport, thus making it applicable to the same range of phenomena as DFH itself. The model is based on the concept that the transport is driven by gradients of chemical potentials of the components present in the mixture. This is a significant generalization of the Darcy transport model since the proposed new model incorporates diffusion transport in addition to the usual pressure-driven transport. In the present work we provide several multiphase transport numerical examples including: a) upscaling to chemical potential drive (CPD) model, b) combined modeling of large pores by DFH and small pores by CPD.

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