论文标题
半透明窗口方面的影响对准对流的准光束相互作用：第一部分
Effects of Semitransparent Window AspectRatio on Interaction of Collimated Beam withNatural Convection: Part I
论文作者
论文摘要
在目前的工作中，已经对半透明的Winodw的纵横比与自然对流相互作用的相互作用的影响进行了数值研究。已经考虑了半透明窗口的几何参数，即高度比（$ H_R $）和窗口宽度比（$ W_R $）和介质的Planck数字的组合。其他参数，例如流程参数（ra $ = 10^5 $），流体参数（PR = 0.71），热参数（n），辐射（G = 1000 $ W/m^2 $），入射角（$ ϕ = 135^0 $）和几何参数（$ a_r $ = 1）和常规条件已被保留。在半透明窗口上以方位角角度（$ ϕ）135^0 $在半透明窗口上辐照辐射值（g = 1000 $ w/m^2 $）。通过传热系数50 $ w/m^2 k $和自由流温度305 $ k $，从底部加热了腔体。在左壁上创建一个半透明窗口，等温条件（t = 296 $ k $）应用于半透明，左右垂直壁，其中绝热条件在腔的上壁上应用。这些半透明窗口的纵横比和介质的Planck数（PL）的组合通过组合来大大变化。左涡流分为两个部分，并保持在上下左下角，以结合培养基的长宽比和普朗克数量的某种组合。热羽流闪烁，具体取决于腔内两个涡流的动态状况。流体的局部仇恨主要发生在半透明窗口的高度比率上。传导；辐射和总努塞尔的数量也受到半透明窗口的纵横比和培养基数量的极大影响。
The effects of the semitransparent winodw's aspect ratio on the interaction of the collimated beam with natural convection have been investigated numerically in the present work. The combination of geometrical parameters of the semitransparent window, i.e., height ratio ($h_r$) and window width ratio ($w_r$) and Planck numbers of the medium have been considered. The other parameters, like flow parameter (Ra$=10^5$), fluid parameter (Pr=0.71), thermal parameter (N), Irradiation (G=1000 $W/m^2$), Angle of incidence ($ϕ=135^0$) and geometrical parameter of the geometry ($A_r$=1) and the wall conditions have been kept constant. A collimated beam is irradiated with irradiation value (G=1000 $W/m^2$) on the semitransparent window at an azimuthal angle ($ϕ) 135^0$. The cavity is convectively heated from the bottom with heat transfer coefficient 50 $W/m^2 K$ and free stream temperature 305 $K$. A semitransparent window is created on the left wall and isothermal conditions (T=296 $K$) is applied on the semitransparent, left and right vertical walls, wherein adiabatic conditions are applied on upper wall of the cavity. The dynamics of two vortices inside the cavity change considerably by combinations these semitransparent window's aspect ratio and Planck number (Pl) of the medium. The left vortex breaks into two parts and remains confined in upper and lower left corners for some combination of aspect ratios and Planck numbers of the medium. The thermal plume flickers depending on the situation of dynamics of two vortices inside the cavity. The localized hating of the fluid happens mostly for large height ratio of semitransparent window. The conduction; radiation and total Nusselt number are also greatly affected by the semitransparent window's aspect ratio and the Planck number of the medium.
