Finite volume method for multiphase flows with radiation and phase change

2020 ◽  
Vol 149 ◽  
pp. 106201
Author(s):  
A. Hasečić ◽  
S. Muzaferija ◽  
I. Demirdžić
Keyword(s):  
Phase Change ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Multiphase Flows ◽  
Volume Method

Numerical model of two-phase mechanical face seal with shallow grooves based on finite volume method

2020 ◽  
Vol 72 (10) ◽  
pp. 1303-1309
Author(s):  
Wenbin Gao ◽  
Weifeng Huang ◽  
Tao Wang ◽  
Ying Liu ◽  
Zhihao Wang ◽  
...  
Keyword(s):  
Flow Field ◽  
Phase Change ◽  
Finite Volume Method ◽  
Peer Review ◽  
Finite Volume ◽  
Fluid Model ◽  
Mechanical Seal ◽  
Two Phase ◽  
Content Type ◽  
Volume Method

Purpose By modeling and analyzing the two-phase mechanical seal of the fan-shaped groove end face, which is prone to phase change, an effective method to study the flow field of the mechanical seal when both cavitation and boiling exist simultaneously is found. Design/methodology/approach Based on the finite volume method, a fluid model was developed to investigate a two-phase mechanical seal. The validity of the proposed model was verified by comparing with some classical models. Findings By modeling and analyzing the two-phase mechanical seal of the fan-shaped groove end face, which is prone to phase change, the analysis of the gap flow field of the mechanical seal was realized when cavitation and boiling existed simultaneously. Originality/value Based on the model proposed for different conditions, the pressure and phase states in the shallow groove sealing gap were compared. The phase change rate between the mechanical seal faces was also investigated. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-12-2019-0537/

A monotone nonlinear finite volume method for diffusion equations and multiphase flows

2013 ◽  
Vol 18 (3-4) ◽  
pp. 311-324 ◽  
Author(s):  
Kirill Nikitin ◽  
Kirill Terekhov ◽  
Yuri Vassilevski
Keyword(s):  
Finite Volume Method ◽  
Finite Volume ◽  
Multiphase Flows ◽  
Diffusion Equations ◽  
Volume Method

Heat Transfer Simulation in the Mould With Generalized Curvilinear Formulation

2003 ◽  
Author(s):  
M. L. M. Eliseu ◽  
C. Monteiro ◽  
A. I. Rouboa
Keyword(s):  
Heat Transfer ◽  
Phase Change ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Change Process ◽  
Complex Geometry ◽  
Geometry Configuration ◽  
Heat Transfer Simulation ◽  
Mould Design ◽  
Volume Method

A large number of mould manufactures need to reduce cost production. In fact, the production of a part by foundry techniques is influenced by its complex geometry configuration, which affects the solidification conditions and subsequent cooling. The simulation of heat transfer phenomena between metal and mould helps to reduce or even eliminate the need of corrective alterations of the mould. This approach will help to reduce its cost. The main objective of this paper is to describe the development of a finite volume method in order to simulate the heat transfer phenomena during the phase change process. Because of the mould design complexity, the finite volume is described using the generalized curvilinear formulation.

Numerical Analysis of Natural Convection and Phase Change Problem With Finite Volume Method

2004 ◽  
Author(s):  
Gi Ho Jeong ◽  
Soo In Jeong ◽  
Kui Soon Kim ◽  
Man Young Ha
Keyword(s):  
Natural Convection ◽  
Numerical Analysis ◽  
Phase Change ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Convective Flow ◽  
Axial Flow ◽  
Convection Problem ◽  
Natural Convection Problem ◽  
Volume Method

A numerical analysis is performed in this study to observe the phase change and natural convection problem occurring in the confined geometry. The unsteady, incompressible 3-D Navier-Stokes equation and energy equation have been considered as governing equation in this study. In addition, numerical tools based on finite volume method were developed and those were found to be tools to analyze phase change and natural convection problem with qualitative accuracy. For verification, phase interfacial lines and flow patterns were compared to previous studies and showed good agreements for the case of square cavity and extended cubic. For application, phase change and natural convection problem inside circular pipe were considered. With and without axial flow cases were compared with each other to observe the effect of axial flow on the flow pattern and phase change characteristics. It was found that the forced convective flow tends to disturb the formation of ice-plug and natural convective flow tends to promote the energy exchanges and expedite the formation of ice-plug.

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