Zobrazeno 1 - 10
of 431
pro vyhledávání: '"Xu, Aiguo"'
Early studies on Rayleigh-Taylor instability (RTI) primarily relied on the Navier-Stokes (NS) model. As research progresses, it becomes increasingly evident that the kinetic information that the NS model failed to capture is of great value for identi
Externí odkaz:
http://arxiv.org/abs/2407.02139
Publikováno v:
Frontiers of Physics 19(4), 42500 (2024)
The study of macro continuous flow has a long history. Simultaneously, the exploration of heat and mass transfer in small systems with a particle number of several hundred or less has gained significant interest in the fields of statistical physics a
Externí odkaz:
http://arxiv.org/abs/2312.17002
Droplet coalescence kinetics: thermodynamic non-equilibrium effects and entropy production mechanism
The thermodynamic non-equilibrium (TNE) effects and the relationships between various TNE effects and entropy production rate, morphology, kinematics, and dynamics during two initially static droplet coalescence are studied in detail via the discrete
Externí odkaz:
http://arxiv.org/abs/2311.06546
Autor:
Xu, Aiguo
We briefly introduce several fundamental problems that cause the creation of Discrete Boltzmann modeling and analysis Method(DBM), corresponding solutions, the relationship and difference between DBM and traditional fluid modeling and other kinetic m
Externí odkaz:
http://arxiv.org/abs/2308.16760
Publikováno v:
Physics of Fluids 35, 106113 (2023)
A two-fluid discrete Boltzmann model with a flexible Prandtl number is formulated to study the shock-bubble interaction (SBI). This paper mainly focuses on the viscous effects on morphological and thermodynamic non-equilibrium (TNE) characterizations
Externí odkaz:
http://arxiv.org/abs/2303.16692
Autor:
Song, Jiahui, Xu, Aiguo, Miao, Long, Chen, Feng, Liu, Zhipeng, Wang, Lifeng, Wang, Ningfei, Hou, Xiao
Publikováno v:
Physics of Fluids 36, 016107 (2024)
A discrete Boltzmann model (DBM) for plasma kinetics is proposed. The constructing of DBM mainly considers two aspects. The first is to build a physical model with sufficient physical functions before simulation. The second is to present schemes for
Externí odkaz:
http://arxiv.org/abs/2303.12356
Specific-heat ratio effects on the interaction between a planar shock wave and a two-dimensional heavy-cylindrical bubble are studied by the discrete Boltzmann method. Snapshots of schlieren images and evolutions of characteristic scales, being consi
Externí odkaz:
http://arxiv.org/abs/2302.05687
Publikováno v:
Proc IMechE Part C: J Mechanical Engineering Science 2023, Vol. 237(11): 2517-2531
A Discrete Boltzmann Model(DBM) based on the Shakhov model for detonation is proposed. Compared with the DBM based on the Bhatnagar-Gross-Krook (BGK) model, the current model has a flexible Prandtl numbers and consequently can be applied to a much wi
Externí odkaz:
http://arxiv.org/abs/2210.08835
Nonequilibrium kinetic effects are widespread in fluid systems and might have a significant impact on the inertial confinement fusion ignition process, and the entropy production rate is a key factor in accessing the compression process. In this work
Externí odkaz:
http://arxiv.org/abs/2210.08706
Publikováno v:
Communications in Theoretical Physics 74, 115601 (2022)
The Rayleigh-Taylor Instability (RTI) under multi-mode perturbation in compressible flow is probed via the Discrete Boltzmann Modeling (DBM) with tracers. The distribution of tracers provides clear boundaries between light and heavy fluids in the pos
Externí odkaz:
http://arxiv.org/abs/2205.14316