| 1. | Adaptive mesh generation and simulation of apfsds and sabots 干扰流场模拟中的应用 |
| 2. | The accuracy of the parameters is improved by linking the aerodynamic calculation and ballistic calculation 将气动力的计算与弹道计算联系起来,提高了在干扰流场下气动力计算的精度。 |
| 3. | Detailed transient jet - interaction flow visualization studies highlight the complex nature of the three dimensional interaction phenomena and provide insight into the physics of the flow structure 提出了瞬态喷流数值计算边界条件的建立方法。给出了更为详细的喷流瞬态干扰流场结构。 |
| 4. | The experimental results show that the proposed method implements the flow pattern identification successfully only using the tube cross - section capacitance distributions 实验结果表明,该流型辨识方法仅通过管截面电容分布就有效地辨识了两相流流型,且具有简单、快速、不干扰流场等特点。 |
| 5. | Without spinning or attack angle , the three dimensional interaction flowfield over projectile with lateral jets is numerically simulated successfully , and unified interaction flowfield with lateral jets and base bleed is also calculated 在无旋转、无攻角条件下完成了弹丸侧喷三维干扰湍流流场数值模拟,并完成了弹丸底喷流-侧喷流共同干扰流场的一体化计算。 |
| 6. | With attack angle , two types of unsteady flowfield over high - speed spinning projectile without and with lateral jets are successfully simulated respectively by dual - time stepping method . the two results of flowfield show unsteady and periodically after one period of spinning 在高速旋转弹丸底喷流-侧喷流共同干扰流场的计算中,发现高速旋转对底喷流动的影响没有对侧喷流动的明显。 |
| 7. | ( 2 ) to evaluate the effects of a reaction control jet on the aerodynamic performance of a missile operating at supersonic / hypersonic flight condition , the single and two attitude jet - interaction flow between a lateral jet and the external flow has been analyzed by detailed numerical simulation ( 2 )分别计算了单喷流和双喷流干扰流场。详细分析了流场结构和弹体表面压力分布特性,获得了一些有实用价值的结果。 |
| 8. | The investigation of the distribution of aerodynamic forces on the external stores and their neighboring aircraft surfaces during the transient process of the separation of the external store from an aircraft is an urgent need because aerodynamic interactions can cause the released store to impact upon , and possibly damage , the aircraft 从载机上发射导弹、投掷炸弹或抛弃副油箱时,外挂物处于载机复杂干扰流场中。此时往往出现不正常分离,有时会导致外挂物与载机发生碰撞,严重危及载机和飞行人员安全的重大事故。 |
| 9. | There are plenty of techniques to get these parameters . of all the techniques , optical in - line holography has some particular advantages : non - destructive , wide size - range of the measured particles , large depth of field , direct reconstruction of 3 - d particle field , high resolution and simple set - up 在众多的测试方法中,激光同轴全息摄影法以其不干扰流场,测量粒子尺寸范围大、拍摄景深大、可再现三维粒子场信息、分辨率高以及光路布置简单等优点得到了广泛的应用。 |