| 1. | Numerical simulation of submerged nozzle for thin - slab continuous casting 薄板坯连铸浸入式水口结构数值模拟 |
| 2. | Mathematical model study on parameters of submerged nozzle in slab mould at high casting speed 高拉速下板坯浸入式水口参数的数模研究 |
| 3. | Simulation orthogonal test on process parameters of submerged nozzle in concasting mold for slab 板坯连铸结晶器浸入式水口工艺参数的模拟正交试验 |
| 4. | Submerged nozzles are commonly preferred in large solid rocket motors . the aft - end internal flows are very complex because of submergence . the flow process and mechanism are not very clear yet 大型的固体火箭发动机通常采用潜入式喷管,其燃烧室尾部的流动非常复杂,流动过程及其机理尚不十分清楚。 |
| 5. | This paper described a cold gas simulation of solid rocket motor with submerged nozzle . a two - dimension model with rectangular channel was designed , which can simulate different flow conditions at three periods after ignition 本文从冷流模拟的角度出发,设计了通道为矩形的含潜入喷管发动机冷流模型,可以模拟发动机工作过程中三个不同时刻的流动状态。 |
| 6. | At the preliminary stage of burning the gas flows along the back surface of the submerged nozzle and no recirculation forms in the aft - end cavity . at the medium stage of burning a weak recirculation forms in the rear of aft - end cavity by the force of injection flow . at the end stage of burning the flow separates at the c ombustion channel and a strong vortex forms in the aft - end cavity 实验结果表明,在发动机工作过程中随着燃面的退移,燃烧室尾部的流动会发生很大变化,初始时刻背壁区加质流沿喷管背壁进入喷管,背壁区没有回流形成;中间时刻在加质流的驱动下背壁区后部形成较弱的回流;结束时刻气流在燃烧室壁面分离,背壁区形成强烈的回流。 |
| 7. | Aiming at the medium thickness slab caster in anshan isco , numerical simulations concerning fluid flow and free surface wave process of liquid steel in mold were conducted by using the cfx4 . 4 , a commercial software package for fluid flow analysis , in which the metallurgical functions of a submerged nozzle , specially the submerged nozzle with three holes , were investigated emphatically 摘要以鞍钢中薄板坯连铸机为对象,在商业软件cfx4 . 4的平台上对结晶器内钢水流动和液面波动过程进行了数值模拟,重点研究了其所独有的3孔浸入式水口的冶金功能。 |