Anti-diffusion Interface Sharpening Technique for Two-Phase Compressible Flow Simulations

2012 ◽  
pp. 57-62
Author(s):  
K. K. So ◽  
X. Y. Hu ◽  
N. A. Adams
Keyword(s):  
Compressible Flow ◽  
Two Phase ◽  
Flow Simulations ◽  
Diffusion Interface

An Accurate and Efficient Look-up Table Equation of State for Two-Phase Compressible Flow Simulations of Carbon Dioxide

2018 ◽  
Vol 57 (22) ◽  
pp. 7676-7691 ◽  
Author(s):  
Yu Fang ◽  
Marco De Lorenzo ◽  
Philippe Lafon ◽  
Sébastien Poncet ◽  
Yann Bartosiewicz
Keyword(s):  
Carbon Dioxide ◽  
Equation Of State ◽  
Compressible Flow ◽  
Two Phase ◽  
Flow Simulations ◽  
Look Up Table

Immersed boundary technique for compressible flow simulations on semi-structured grids

2009 ◽  
pp. 365-370
Author(s):  
M.D. de Tullio ◽  
P. De Palma ◽  
G. Iaccarino ◽  
G. Pascazio ◽  
M. Napolitano
Keyword(s):  
Compressible Flow ◽  
Immersed Boundary ◽  
Structured Grids ◽  
Flow Simulations

scholarly journals Assessment of different parameters used in mesh independence studies in two-phase slug flow simulations

2021 ◽  
Vol 18 ◽  
pp. 100317
Author(s):  
Stanislav Knotek ◽  
Sonja Schmelter ◽  
Marc Olbrich
Keyword(s):  
Slug Flow ◽  
Two Phase ◽  
Flow Simulations ◽  
Mesh Independence

Numerical study of cavitating flow over hydrofoil in the presence of air

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Włodzimierz Wróblewski ◽  
Krzysztof Bochon ◽  
Mirosław Majkut ◽  
Krzysztof Rusin ◽  
Emad Hasani Malekshah
Keyword(s):  
Numerical Study ◽  
Cavitating Flow ◽  
Cavitation Model ◽  
Two Phase ◽  
Content Type ◽  
Flow Simulations ◽  
Cavity Structure ◽  
Dynamic Forces ◽  
High Dynamic ◽  
The Impact

Purpose The presence of air in the water flow over the hydrofoil is investigated. The examined hydrofoil is ClarkY 11.7% with an angle of attack of 8 deg. The flow simulations are performed with the assumption of different models. The Singhal cavitation model and the models which resolve the non-condensable gas including 2phases and 3phases are implemented in the numerical model. The calculations are performed with the uRANS model with assumption of the constant temperature of the mixture. The two-phase flow is simulated with a mixture model. The dynamics and structures of cavities are compared with literature data and experimental results. Design/methodology/approach The cavitation regime can be observed in some working conditions of turbomachines. The phase transition, which appears on the blades, is the source of high dynamic forces, noise and also can lead to the intensive erosion of the blade surfaces. The need to control this process and to prevent or reduce the undesirable effects can be fulfilled by the application of non-condensable gases to the liquid. Findings The results show that the Singhal cavitation model predicts the cavity structure and related characteristics differently with 2phases and 3phases models at low cavitation number where the cavitating flow is highly dynamic. On the other hand, the impact of dissolved air on the cloud structure and dynamic characteristic of cavitating flow is gently observable. Originality/value The originality of this paper is the evaluation of different numerical cavitation models for the prediction of dynamic characteristics of cavitating flow in the presence of air.

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