Results 11 to 20 of about 30,790,443 (235)

Global existence of weak solutions to the drift-flux system for general pressure laws [PDF]

open access: yes, 2022
The initial value problem to the multi-dimensional drift-flux model for two-phase flow is investigated in this paper, and the global existence of weak solutions with finite energy is established for general pressure-density functions without the ...
Shou, Ling-Yun   +3 more
core   +1 more source

Change of drift in one-dimensional diffusions [PDF]

open access: yes, 2021
It is generally understood that a given one-dimensional diffusion may be transformed by a Cameron–Martin–Girsanov measure change into another one-dimensional diffusion with the same volatility but a different drift.

core   +3 more sources

Solar flux emergence : a three-dimensional numerical study [PDF]

open access: yes, 2008
Flux is continually emerging on the Sun, making its way from the solar interior up into the atmosphere. Emergence occurs on small-scales in the quiet Sun where magnetic fragments emerge, interact and cancel and on large-scales in active regions where ...
Murray, Michelle J.
core   +2 more sources

Comparative analysis of wall shear stress models to the drift-flux model applied to slug flow regime

open access: yes, 2020
The one-dimensional drift-flux model efficiently predicts gas–liquid flows dominated by gravity force. The advantages of the drift-flux model applied to pipe flows are the absence of interfacial terms, well posedness and the reduced number of transport ...
Lima, L.E.M., Rosa, E.S.
core   +1 more source

Application of a drift-flux model to flashing in straight pipes [PDF]

open access: yes, 1975
A new computer program, SOLA-OF, has been written to solve the unsteady, two-dimensional equations of motion for a two-phase mixture. The equations solved are based on the drift-flux approximation and include a phase transition model and a general drift ...
Hirt, C.W., Romero, N.C.
core   +1 more source

One-dimensional drift-flux model and constitutive equations for relative motion between phases in various two-phase flow regimes [PDF]

open access: yes, 1977
In view of the practical importance of the drift-flux model for two-phase flow analysis in general and in the analysis of nuclear-reactor transients and accidents in particular, the kinematic constitutive equation for the drift velocity has been studied ...
M. Ishii, Ishii, M.
core   +1 more source

Development of central-upwind-WENO scheme for two-phase 1-D drift-flux model [PDF]

open access: yes, 2022
The two-phase drift flux model is extensively used in multiphase flow applications. In this study, we focus on possible numerical schemes for solving the drift flux model.
Berg, Chiristian   +2 more
core   +1 more source

Sensitivity of Two-Fluid Model Calculations to Two-Group Drift-Flux Correlations Used in the Prediction of Interfacial Drag

open access: yes, 2021
Void fraction prediction of the one-dimensional two-fluid model has been evaluated utilizing a computational tool developed in MATLAB. Various drift-flux correlations, specifically those of Ishii, Kataoka and Ishii, Chexal-Lellouche, Hibiki and Ishii ...
Hibiki, Takashi   +5 more
core   +1 more source

Two-dimensional numerical experiments of convection. [PDF]

open access: yes, 1996
PhDI report the results of numerical studies of 2-dimensional fully compressible convection of a fluid in which the dependence of the radiative conductivity on temperature T is taken as K, (V + aT -5)1 so that central regions of the layer are unstable ...
Simmons, John Christopher
core   +2 more sources

Air-Lift Pumping System for Hybrid Mining of Rare-Earth Elements-Rich Mud and Polymetallic Nodules around Minamitorishima Island

open access: yesJournal of Marine Science and Engineering
REE-rich mud under the seabed at a 5500–5700 m water depth around Minamitorishima island and polymetallic nodules buried in the deep seabed are very promising and attractive to explore and develop.
Yoshiyuki Shimizu   +4 more
doaj   +1 more source

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