Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Cong-Tu Ha"'
Publikováno v:
Physics of Fluids. 34:083309
Numerical simulations of the bubble-bursting phenomenon in two tandem bubbles at the free surface are conducted to explore the influence of a following bubble behind the bursting bubble on the jet ejection at fixed Bo = 0.05 and Oh = 0.022. The equiv
Publikováno v:
International Journal of Heat and Mass Transfer. 183:122055
Reliable prediction of unsteady multiphase flows with mass changes, large density ratios, and complex flow features is very challenging due to the need to accurately resolve both complex interface deformations and steep gradients associated with mate
Publikováno v:
International Journal of Heat and Mass Transfer. 127:116-125
The present study aims at validating a computer simulation code for compressible interface flows with and without mass transfers. The numerical method was based on a dual-time fully compressible multiphase homogeneous mixture flow model. The interfac
Autor:
Warn-Gyu Park, Cong-Tu Ha
Publikováno v:
Nuclear Engineering and Design. 337:193-204
A coupled compressive interface capturing scheme and dual-time preconditioned approach was developed for the two-dimensional axisymmetric computation of compressible interface flows with mass transfers. The fully-compressible three-phase homogeneous
Publikováno v:
International Journal of Mechanical Sciences. 136:220-233
Numerical investigations of the condensing behaviors of a single bubble and multiple bubbles under different subcooled flows were conducted using the compressible homogeneous mixture method. The surface tension between the liquid and vapor phases was
Publikováno v:
International Journal of Heat and Mass Transfer. 109:1068-1083
A numerical study on heat transfer effects of cavitating and flashing flows was conducted by employing a compressible homogeneous mixture approach. A dual-time preconditioned method was applied to enhance the efficiency and accuracy of the computatio
Autor:
Cong-Tu Ha, Warn-Gyu Park
Publikováno v:
Ocean Engineering. 126:432-466
This paper presents the application of a dual-time stepping scheme to the computation of unsteady cavitating and ventilated flows. The flows are modeled for multidimensional problems based on fully-compressible multi-component, multi-phase mixture Na
Publikováno v:
Journal of Mechanical Science and Technology. 30:3969-3983
This work is devoted to the development of a procedure for the numerical solution of Navier-Stokes equations for cavitating flows with and without ventilation based on a compressible, multiphase, homogeneous mixture model. The governing equations are
Autor:
Cong-Tu Ha, Jae Hwa Lee
Publikováno v:
Computers & Fluids. 197:104345
The monotonicity preserving (MP) polynomial-based reconstruction scheme with Runge-Kutta time stepping by Suresh and Huynh (1997) has been applied extensively in computational fluid dynamics for solving hyperbolic partial differential equations and o
Publikováno v:
Journal of Mechanical Science and Technology. 27:3683-3691
Cavitating flow is usually formed on the surface of a high-speed underwater object. When the object moves near the free surface at high speed, the cavitation signature becomes a main factor to be overcome by the sensors of a military satellite. This