1)  Cavity geometry+
凹腔结构+
2)  cavity structure
凹腔结构
3)  Cavity+
凹腔+
4)  Cavity
凹腔
1.
Investigation of Ignition and Flameholding of Cavity Flameholders in Supersonic Flowfields;
超声速流场中凹腔火焰稳定器的点火与稳焰研究
2.
Shock could be catch and analyzed trait clearly,the trait of flow field and vortex could be imaged clearly;The conclusions are as follows:the low velocity、high pressure and vortex area were obtained with cavity to mix fuel and burn.
对带不同长深比凹腔结构+(燃烧室)的二维超燃冲压发动机流场进行数值模拟,采用迎风二阶精度NND格式求解二维欧拉方程,对流场进行冷态数值计算,能够更加清楚地捕捉、分析激波的特点,反映流场的状态和旋流特点;结果证明凹腔可以使流场中形成低速高压回流区,以达到燃料混合燃烧的目的。
3.
Results indicate that cavity flow structure has little relevance to L/D within the range of 5~9,and the ramp angle of the rear wall will not alter the overall structure of the cavity flow within the range of 300~600,but it can alter the development of the shear layer and the structure of the circumfluence in cavitie.
对超声速冷流情况下凹腔流场特性进行了试验和数值仿真研究,分析了不同构型的凹腔对超声速流场的影响。
5)  micro lubricative pores
微观凹腔
1.
A new type of mechanical seal with micro lubricative pores and macro pumping grooves on the seal ring face was introduced,and a preliminary design on the micro and macro geometrical shape of its surface was carried out based on hydrodynamic pressure lubrication theory.
介绍一种在密封环端面具有微观凹腔和宏观泵送槽的新型机械密封。
6)  surface reentrant
表面凹腔
1.
The stability of a bubble nucleus in surface reentrant is analyzed.
系统地分析了气泡核在表面凹腔内的生长和收缩过程,通过对气泡核平衡机理的探讨,获得了修正的稳定性判据,进而研究沸腾起始及空腔钝化的条件。
参考词条
补充资料:凹模壁厚及凹模垫板尺寸

型腔壁部投影面积            壁            厚,        毫          米
F, 厘米2              h1           h2         h3          h4         h5 
<5                   15~20        30~40      <=10        15~20      30~40
>5~10                20~25        40~50      10~15       20~25      40~55
>10~50               20~30        50~60      15~20       20~30      55~65
>50~100              30~35        60~75      20~25       30~40      65~70
>100~200             35~40        75~85      25~30       40~50      70~75
>200                  >40          >85       30~35       50~60       >80


说明:补充资料仅用于学习参考,请勿用于其它任何用途。