Numerical Modeling of Scramjet Combustor Flow Field Using Unstructured Point Implicit Finite Volume Method

2006 ◽  
Author(s):  
Mukundan Deepu ◽  
Sadanand Gokhale ◽  
Simon Jayaraj
Keyword(s):  
Numerical Modeling ◽  
Flow Field ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Scramjet Combustor ◽  
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/

Numerical modeling of bubble-induced flow patterns in champagne glasses

2014 ◽  
Vol 24 (3) ◽  
pp. 563-578 ◽  
Author(s):  
Fabien Beaumont ◽  
Catalin Popa ◽  
Gérard Liger Belair ◽  
Guillaume Polidori
Keyword(s):  
Numerical Modeling ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Bubble Diameter ◽  
Bubble Nucleation ◽  
Flow Dynamics ◽  
Empirical Formulas ◽  
Content Type ◽  
Volume Method ◽  
First Time

Purpose – Very recently, driven by glassmakers and champagne houses, attention has been paid to the way to control effervescence and bubble nucleation. It was demonstrated that ascending bubbles act like many swirling motion generators in champagne glasses. It is the reason why a numerical modeling of flow dynamics induced by the effervescence in a glass of champagne has been carried out for the first time using the finite volume method by Computational Fluid Dynamics (CFD). The paper aims to discuss these issues. Design/methodology/approach – In order to define source terms for flow regime and to reproduce accurately the nucleation process at the origin of effervescence, specific subroutines for the gaseous phase have been added to the main numerical model. These subroutines allow the modeling of bubbles behavior based on semi-empirical formulas relating to bubble diameter and velocity or mass transfer evolutions. Findings – Details and development of the steps of modeling are presented in this paper, showing a good agreement between the results obtained by CFD simulations in a reference case of those from laser tomography and Particle Image Velocimetry experiments, validating the present model. Originality/value – A numerical modeling of flow dynamics induced by the effervescence in a glass of champagne has been carried out for the first time using the finite volume method by CFD.

Numerical Modeling of the Knee Synovial Joint Under Deformation Using the Finite Volume Method

2016 ◽  
pp. 419-433
Author(s):  
N. Martínez-Gutiérrez ◽  
L. A. Ibarra-Bracamontes ◽  
S. R. Galván-González ◽  
A. Aguilar-Corona ◽  
G. Viramontes-Gamboa
Keyword(s):  
Numerical Modeling ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Synovial Joint ◽  
Volume Method

scholarly journals Numerical Modeling of Laser-Induced Cavitation Bubbles with a Finite Volume Method

PAMM ◽  
2015 ◽  
Vol 15 (1) ◽  
pp. 515-516 ◽  
Author(s):  
Christiane Lechner ◽  
Max Koch ◽  
Fabian Reuter ◽  
Karsten Köhler ◽  
Robert Mettin ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Cavitation Bubbles ◽  
Volume Method

Numerical Modeling of Scattering Problems Using a Time Domain Finite Volume Method

1997 ◽  
Vol 11 (8) ◽  
pp. 1165-1189 ◽  
Author(s):  
P. Bonnet ◽  
X. Ferrieres ◽  
F. Issac ◽  
F. Paladian ◽  
J. Grando ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Time Domain ◽  
Scattering Problems ◽  
Volume Method

scholarly journals Transport and deposition of spherical microparticles with single-shell in a 90 degree bend

2015 ◽  
Vol 19 (4) ◽  
pp. 1245-1248
Author(s):  
Zhen-Hua Chen ◽  
Kai Zhang ◽  
Xiao-Fei Lv ◽  
Yan-Hua Xing ◽  
Hong Jiang
Keyword(s):  
Flow Field ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Theoretical Investigation ◽  
Deposition Efficiency ◽  
Bend Pipe ◽  
Volume Method ◽  
Unique Relationship ◽  
Spherical Microparticles ◽  
Single Shell

Theoretical investigation on particle transport in a 90 degree bend was carried out. The finite volume method was used to simulate the flow field in the bend pipe, and one-way coupled Lagrangian method was used to calculate the trajectory and deposition efficiency of microparticles. The unique relationship between the irreversible deposition efficiency and radius ratio of single-shell microparticle was given finally.

The Influence of Different Reynolds Number on Flow across Three Tandem Cylinders with Different Diameter

2014 ◽  
Vol 1079-1080 ◽  
pp. 304-308
Author(s):  
Xing Jie Gao ◽  
Hong Qing Zhang ◽  
Hui Chao Dai ◽  
Gui Wen Rong
Keyword(s):  
Reynolds Number ◽  
Circular Cylinder ◽  
Flow Field ◽  
Fluid Mechanics ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Classical Problem ◽  
Single Cylinder ◽  
Tandem Cylinders ◽  
Volume Method

Flow around a circular cylinder is a classical problem in fluid mechanics. The flowing problem about three tandem cylinders with different diameter is numerical simulated by a finite volume method. Through the simulation, the variations of flow field with different distance between the adjacent cylinder and different Reynolds number are investigated. The simulation result shows that three tandem cylinders with different diameter can evidently small columns minish width and aggrandize length of cylinder wakes compared with single cylinder.

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