On the Motion of Shear-Thinning Heat-Conducting Incompressible Fluid-Rigid System
On the Motion of Shear-Thinning Heat-Conducting Incompressible Fluid-Rigid System
复制标题
剪切稀化导热不可压缩流体刚性系统的运动研究
DOI：
10.1007/s10255-018-0767-5
复制
发表时间：
2018
影响因子：
0.8
通讯作者：
Wang Xiao ping
中科院分区：
文献类型：
--
作者：
Chen Ya zhou;He Qiao lin;Shi Xiao ding;Wang Teng;Wang Xiao ping
研究了描述旋转多螺杆挤出机中剪切变稀和不可压缩粘性流体运动的混合边界条件下的全Navier-Stokes-Fourier方程组。假设粘度取决于剪切速率和温度。建立了适当弱解的整体存在性。虚拟域法，其中包括在填充与周围的流体移动刚性螺钉，并考虑到这些机构的边界条件，通过引入一个精心选择的边界力分布。
The full Navier-Stokes-Fourier system with mixed boundary condition that describes the motion of shear-thinning and incompressible viscous fluid in a rotating multi-screw extruder is investigated. The viscosity is assumed to depend on the shear rate and the temperature. The global existence of suitable weak solutions is established. The fictitious domain method which consists in filling the moving rigid screws with the surrounding fluid and taking into account the boundary conditions on these bodies by introducing a well-chosen distribution of boundary forces is used.