排序方式: 共有134条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
Numerical simulation of aluminum holding furnace with fluid-solid coupled heat transfer 总被引:2,自引:2,他引:0
To predict three-dimensional temperature distribution of molten aluminum and its influencing factors inside an industrial
aluminum holding furnace, a fluid-solid coupled method was presented. The fluid-solid coupled mathematics models of aluminum
holding furnace in the premixed combustion processing were established based on mass conservation, moment conservation, momentum
conservation, energy conservation and chemistry species conservation. Computational results agree well with the test data
of the typical condition. The maximum combustion temperature is 1 850 K. The average temperature of the molten aluminum is
1 158 K, and the maximum temperature difference is about 240 K. The average temperature increases 0.3 °C while the temperature
of combustion air increases 1 °C. The optimal excess air ratio is 1.25–1.30. 相似文献
5.
6.
7.
8.
9.
10.
水平环式焙烧炉火道内温度分布的均匀程度是影响炭阳极焙烧质量的主要因素之一,而温度场与气流分布的均匀程度密切相关。为了解火道内气流分布的情况,应用Navier-Stokes方程与κ-ε双方程湍流模型,对水平环式阳极焙烧炉火道内的气流分布进行了仿真计算,并以提高火道内气流分布的均匀程度为目标,对火道内挡块的数量与位置进行了优化。其计算结果表明:在设计挡块时,应考虑气体的流动方向。根据气体的流动规律,适当调整挡块的数量与位置,可大大改善火道内气流分布的均匀强度。 相似文献