Flow distribution and the effects of different boundary conditions are achieved for a steady-state conjugate (Conduction & Convection) heat transfer process. A plate fin heat sink with horizontal fin orientation a...Flow distribution and the effects of different boundary conditions are achieved for a steady-state conjugate (Conduction & Convection) heat transfer process. A plate fin heat sink with horizontal fin orientation along with a computer chassis is numerically investigated and simulated using software ANSYS CFX. Fin orientation of a heat sink changes the direction of fluid flow inside the chassis. For predicting turbulence of the flow inside the domain, a two</span><span style="font-family:Verdana;">-</span><span style="font-family:Verdana;">equation based</span><span style="font-size:10pt;font-family:""><span style="font-family:Verdana;font-size:12px;"> <i></span><i><span style="font-family:Verdana;font-size:12px;">k</span></i><span style="font-family:Verdana;font-size:12px;">-</span><i><span style="font-family:Verdana;font-size:12px;">ε</span></i><span style="font-family:Verdana;font-size:12px;"></i> turbulence model is chosen. The</span></span><span style="font-size:10pt;font-family:""> </span><span style="font-family:Verdana;">Reynolds number based on inflow velocity and geometry is found 4.2</span><span style="font-size:10pt;font-family:""> </span><span style="font-family:Verdana;">×</span><span style="font-size:10pt;font-family:""> </span><span style="font-family:Verdana;">10<sup>3</sup> that indicates that the flow is turbulent inside the chassis. To get proper thermal cooling, the optimum velocity ratio of inlet/outlet, dimension of inlet/outlet and different positions of outlet on the back sidewall of the chassis are predicted.</span><span style="font-size:10pt;font-family:""> </span><span style="font-family:Verdana;">Aspect</span><span style="font-family:Verdana;"> velocity ratio between the inlet airflow and the outlet airflow has an effect on the steadiness of the flow. Mass flow rate depends</span><span style="font-size:10pt;font-family:""> </span><span style="font-family:Verdana;">on the dimension of the inlet/outlet. The horizontal fin orientation with 1:1.6 inlet-outlet airflow velocity ratio gives 展开更多
文摘Flow distribution and the effects of different boundary conditions are achieved for a steady-state conjugate (Conduction & Convection) heat transfer process. A plate fin heat sink with horizontal fin orientation along with a computer chassis is numerically investigated and simulated using software ANSYS CFX. Fin orientation of a heat sink changes the direction of fluid flow inside the chassis. For predicting turbulence of the flow inside the domain, a two</span><span style="font-family:Verdana;">-</span><span style="font-family:Verdana;">equation based</span><span style="font-size:10pt;font-family:""><span style="font-family:Verdana;font-size:12px;"> <i></span><i><span style="font-family:Verdana;font-size:12px;">k</span></i><span style="font-family:Verdana;font-size:12px;">-</span><i><span style="font-family:Verdana;font-size:12px;">ε</span></i><span style="font-family:Verdana;font-size:12px;"></i> turbulence model is chosen. The</span></span><span style="font-size:10pt;font-family:""> </span><span style="font-family:Verdana;">Reynolds number based on inflow velocity and geometry is found 4.2</span><span style="font-size:10pt;font-family:""> </span><span style="font-family:Verdana;">×</span><span style="font-size:10pt;font-family:""> </span><span style="font-family:Verdana;">10<sup>3</sup> that indicates that the flow is turbulent inside the chassis. To get proper thermal cooling, the optimum velocity ratio of inlet/outlet, dimension of inlet/outlet and different positions of outlet on the back sidewall of the chassis are predicted.</span><span style="font-size:10pt;font-family:""> </span><span style="font-family:Verdana;">Aspect</span><span style="font-family:Verdana;"> velocity ratio between the inlet airflow and the outlet airflow has an effect on the steadiness of the flow. Mass flow rate depends</span><span style="font-size:10pt;font-family:""> </span><span style="font-family:Verdana;">on the dimension of the inlet/outlet. The horizontal fin orientation with 1:1.6 inlet-outlet airflow velocity ratio gives
