搜索结果: 1-15 共查到“Boussinesq”相关记录61条 . 查询时间(0.046 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Stable nearly self-similar blowup of the 2D Boussinesq and 3D Euler equations with smooth data
平滑数据 二维布西内斯 三维欧拉方程 稳定近似 自相似爆炸
2023/4/13
Whether the 3D incompressible Euler equations can develop a finite-time singularity from smooth initial data is an outstanding open problem. In this talk, we will first review recent progress in singu...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Dispersive estimates for the inviscid rotating stratified Boussinesq equations in the stratification-dominant three-scale limit
三尺度极限 无粘性旋转分层 Boussinesq方程 色散估计
2023/5/5
A dispersive decay estimate is proven for the linear propagator of the three-scale rotating stratified Boussinesq equations in the stratification-dominant regime. Because the phase function of that pr...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars： Dispersive estimates for the inviscid rotating stratified Boussinesq equations in the stratification-dominant three-scale limit
分层主导 三尺度极限 无粘性旋转分层 Boussinesq方程 色散估计
2023/5/5
A dispersive decay estimate is proven for the linear propagator of the three-scale rotating stratified Boussinesq equations in the stratification-dominant regime. Because the phase function of that pr...
Non-Planar Fronts in Boussinesq Reactive Flows
Non-Planar Fronts Boussinesq Reactive Flows
2015/7/14
We consider the reactive Boussinesq equations in a slanted cylinder, with zero stress boundary conditions and arbitrary Rayleigh number. We show that the equations have non-planar traveling front solu...
TRAVELING WAVES IN 2D REACTIVE BOUSSINESQ SYSTEMS WITH NO-SLIP BOUNDARY CONDITIONS
TRAVELING WAVES 2D REACTIVE BOUSSINESQ SYSTEMS NO-SLIP BOUNDARY CONDITIONS
2015/7/14
We consider systems of reactive Boussinesq equations in two dimensional strips that are not aligned with gravity s direction. We prove that for any width of such strips and for arbitrary Rayleigh and ...
Propagation and quenching in a reactive Burgers-Boussinesq system
Propagation quenching Burgers-Boussinesq system
2015/7/14
We investigate the qualitative behavior of solutions of a Burgers-Boussinesq system – a reaction-diffusion equation coupled via gravity to a Burgers equation – by a combination of numerical, asymptoti...
Boussinesq 是法国著名的物理学家和数学家。他1867年获得博士学位后，先在多所学校担任数学教师，之后担任里尔理学院（ Faculty of Sciences of Lille）的微积分学教授 (1872-1886) 、巴黎大学（Sorbonne）数学和物理教授（1886），1886 年当选法国科学院院士。 Boussinesq 一生对数学物理中的所有分支（除电磁学外）都有重要的贡献。在流...
Background and Available Potential Energy in Numerical Simulations of a Boussinesq Fluid
Background and Available Potential Energy Numerical Simulations a Boussinesq Fluid
2014/10/23
In flows with stable density stratification, a p ortion of the gravitational p otential energy is available for conversion to kinetic energy. The remainder is not and is called “background p otential ...
论一类四阶Boussinesq方程的变浅性能
潜堤 Boussinesq方程 数值模型
2014/8/20
Boussinesq 类水波模型在港口、海岸以及海洋工程领域应用广泛，但以前对这类模型的变浅性能的研究不够充分. 针对Madsen 和Schäffer 提出的一组四阶Boussinesq 方程，从理论和数值两个方面对这一问题进行了探讨. 理论分析了其变浅性能，指出该文献中参数α2 和β2 的取值是不合理的，并重新确定其取值. 在交错网格下建立了基于混合4 阶Adams-Bashforth...
TRA VELING W A VES IN 2D REACTIVE BOUSSINESQ SYSTEMS WITH NO-SLIP BOUNDAR Y CONDITIONS
TRAVELING WAVES IN 2D REACTIVE BOUSSINESQ SYSTEMS NO-SLIP BOUNDARY CONDITIONS
2014/4/4
We consider systems of reactive Boussinesq equations in two dimensional strips that are not aligned with gravity's direction. We prove that for any width of such strips and for arbitrary Rayleigh and ...
An incompressible 2D didactic model with singularity and explicit solutions of the 2D Boussinesq equations
Inviscid model, singularity explicit solutions 2D Boussinesq equations
2014/4/3
We give an example of a well posed, nite energy, 2D incompressible active scalar equation with the same scaling as the surface quasi-geostrophic equation and prove that it can produce nite time sing...
本文借助于Bell多项式研究经典Boussinesq方程,将其转换成Hirota双线性形式,构造了带参数的Bäcklund变换,进而重新导出了其Lax表示.
一类变式Boussinesq系统的行波解
孤立波解 广义扭波解 紧孤立波解 周期波解
2013/10/17
α和β都是正常数.许多逼近模型都能从此系统中被推导出,比如Boussinesq系统和两分量Camassa-Holm系统等.本文利用平面动力系统方法研究它的行波解及相图，得到了孤立波解,广义扭波解,广义反扭波解,紧孤立波解和周期波解,并给出了这些解的数值模拟.
本文研究了耦合Schrodinger-Boussinesq方程组的孤立波和周期波解，在给定参数条件下，利用动力系统理论，获得了该方程组孤立波与周期波解的精确参数表达式，并推广了已有文献的相应结果。
Joint downscale fluxes of energy and potential enstrophy in rotating stratified Boussinesq flows
Turbulent ows Strati ed ows Rotating ows
2011/10/14
We employ a coarse-graining approach to analyze nonlinear cascades in Boussinesq flows using high-resolution simulation data. We derive budgets which resolve the evolution of energy and potential enst...