欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
针对非牛顿幂律流体在无限大旋转圆盘上层流边界层内三维流动与传热问题,在普朗特数为常数的条件下,利用广义Karman相似变换,将连续方程、动量方程及能量方程形成的偏微分方程组化成常微分方程组,再采用多重打靶法数值求解非线性两点边值问题.分别针对剪薄型流体、牛顿流体和剪厚型流体,得到不同幂律指标下的速度和温度分布及不同普朗特数下温度场的结果.结果表明径向速度分量的峰值随幂律指标的增大而增大,轴向速度受边界层厚度的影响较突出,盘表面的传热随幂律指标和普朗特数都呈现递增趋势.最后将本文流场结果与Andersson等在不考虑传热情况下的结果进行比较表明吻合性较好.
英文摘要：
The three-dimensional steady laminar flow of an incompressible non-Newtonian power-law fluid over a rotating infinite disk with heat transfer was studied. The governing partial differential equations, including the continuity equation, the momentum equation and the energy equation, were transformed to ordinary differential equations by utilizing the generalized Karman similarity transformation. The corresponding nonlinear two-point boundary value problem was solved by the multi-shooting method. Numerical re- sults were obtained for the shear-thinning fluid, the Newtonian fluid and the shear-thickening fluid. It is shown that the power-law character index and the Prandtl number affect the velocities in all directions and the temperature of the fluid in the boundary layer. The results are compared with those of Andersson et al. without considering heat transfer.
同期刊论文项目
同项目期刊论文
SLIP AND BUOYANCY LIFT EFFECTS ON THE MIXED CONVECTION FLOW AND RADIATION HEAT TRANSFER OF A MICROPO
MHD mixed convective heat transfer over a permeable stretching wedge with thermal radiation and ohmi
ANALYSIS OF MARANGONI CONVECTION OF NON-NEWTONIAN POWER LAW FLUIDS WITH LINEAR TEMPERATURE DISTRIBUT
Analyzing the Flow and Heat Transfer of a Power-law Fluid over an Unsteadily Stretched Surface using
3D flow of a generalized Oldroyd-B fluid induced by a constant pressure gradient between two side wa
Exact solutions for the unsteady rotating flows of a generalized Maxwell fluid with oscillating pres
Unsteady flow and heat transfer of a generalized Maxwell fluid due to a hyperbolic sine accelerating
Helical flows of a heated generalized Oldroyd-B fluid subject to a time-dependent shear stress in po
Flow and radiation heat transfer of a nanofluid over a stretching sheet with velocity slip and tempe
An improved simulation of heat transfer and fluid flow in plasma arc welding with modified heat sour
Numerical analysis of transient temperature field and keyhole geometry in controlled pulse key-holin
位置：