Using a Dynamic and Constant Mesh in Numerical Simulation of the Free-Rising Bubble
نویسندگان
چکیده
منابع مشابه
Numerical simulation of a rising bubble in viscoelastic fluids
In this paper we discuss simulation techniques for a rising bubble in viscoelastic fluids via numerical methods based on high order FEM. A level set approach based on the work in [9] is used for interface tracking between the bubble and the surrounding fluid. The two matters obey the Newtonian and the Oldroyd-B constitutive law in the case of a viscoelastic fluid while the flow model is given b...
متن کاملDirect numerical simulation of rising bubble interaction with free surface using level contour reconstruction method
Bubble rising phenomenon is widely found in many engineering applications including stream generators in power plants. Many experimental and numerical researches have been performed to predict the dynamic behavior of the bubble rising process. Most simulations so far have focused on evolution behavior of the rising bubble itself. Rising bubbles could penetrate through the top free surface which...
متن کاملNumerical simulation of bubble rising in viscous liquid
An improved numerical algorithm for front tracking method is developed to simulate the rising of a bubble in quiescent viscous liquid due to buoyancy. In the new numerical algorithm, volume correction is introduced to conserve the bubble volume while tracking the bubble’s rising and deforming, and volume flux conservation based SIMPLE algorithm is adopted to solve the Navier–Stokes equation for...
متن کاملNumerical simulation of single bubble rising in vertical and inclined square channel using lattice Boltzmann method
A lattice Boltzmann equation (LBE)model based on the Cahn–Hilliard diffuse interface approach is used to investigate thedynamics of a bubble rising in a vertical and inclined square channelwith large density and viscosity ratios. Deformation parameter D, film thickness d, and terminal velocity Ut of the bubble are interrelated quantities which depend on non-dimensional numbers such as Bond numb...
متن کاملNumerical simulation of the water bubble rising in a liquid column using the combination of level set and moving mesh methods in the collocated grids
The proper interpretation of bubble rising in a liquid column is critical in the investigation of the waterevapour two phase flow and heat transfer. In this paper, the bubble behaviours are studied using the combination of Level Set Method (LSM) and moving mesh method in a collocated grid. Level set method is used to track the interface of the bubble, which has many advantages over other interf...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Fluids
سال: 2019
ISSN: 2311-5521
DOI: 10.3390/fluids4010038