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- The experiments have proved these flow performances in Laval nozzle. 实验结果证明了拉伐尔喷管的流动特性。
- And study the reason that leading to a lot of nubble in the Laval nozzle between the spraying discourse. 探讨了超音速火焰喷枪拉伐尔管的结构参数对喷涂粒子速度、温度场和压力场的影响规律及喷涂过程中引起堵枪的原因。
- This nozzle has been pro-ved by actual measurements to be similar to the Laval nozzle as far as the characteristies of theoxygen jet are concerned. 实验研究证实,这种喷管和拉伐尔喷管的氧气射流的特性基本相同。
- Making use of these results, we obtained an exact solution for the incompressible potential flow through a two-dimensional Laval nozzle. 利用这些结果得到了二元拉伐尔喷管内不可压缩位势流动的精确解。
- Two types of solid micro-thruster structure won designed based on MEMS technique, one of which with discrete and abnormal laval nozzle. 摘要设计了两种基于微光机电技术的固体微推力器结构，其中一种结构具有不连续的非正常拉瓦尔喷管。
- In this paper,the microstructure of nodulation produced in Laval nozzle of HVOF as spraying NiCr-Cr3C2 coating was analyzed,and the reason of nodulation formation was discussed. 围绕超音速火焰喷涂NiCr-Cr3C2涂层时在Laval管内壁产生结瘤的问题,在分析结瘤产物显微结构的基础上探讨了形成结瘤的原因。
- Based on the theory of the phase transition, gas dynamics , this dissertation set up the mechanical model of high speed natural gas flow with phase transition in Laval nozzle. 依据相变理论、气体动力学理论建立了描述有相变喷管中天然气高速流动的数学模型。
- By increasing the length of Laval nozzle, an approach was presented to obtain higher particle velocity necessary for gas-solid separation in dusty gas of high temperature and high pressure. 提出了用增加缩放喷管长度的方法，使含尘高温高压气体中的灰尘颗粒获得实现气固两相分离所必需的更高动量的途迳。
- The conveying parameters were relatively optimized by adjusting the throat area of adjustable Laval nozzle and pressure parameters, so that the foodstuff particle breaking rate during pneumatic conveying was decreased at certain extent. 通过调节可调式拉法管的喉径以及各压力参数实现了输送参数的相对最优，在一定程度上减轻了粮食颗粒在输送过程中的破碎率。
- The nucleating flows in Laval nozzle and 2D turbine cascade are simulated. By comparison with experimental data, good agreement between calculated and experimental surface pressure is obtained and the distributions of many flow parameters are displayed. 计算了Moore喷管和Bakhtar叶栅凝结流，并与实验数据进行了对比，得到了很好的计算与实验压力的一致性及丰富的流动参数分布。
- The particularity of the altitude simulated test of an engine with Laval nozzle was analyzed in brief. The engine thrust determination and correction in altitude test with large deviation of simulated ambient pressure was put forward. 简析了拉瓦尔喷管发动机高空模拟试验的特殊性,提出了大模拟偏差条件下确定和修正拉瓦尔喷管发动机推力的方法。
- In order to separate gas and solid two phases completely, the velocity of particles at the exit of Laval nozzle should be high enough, therefore the Laval nozzle should be long enough. ??了更好地实现气、固两相分离，颗粒在缩放喷管出口处的速度应该足够大，因而缩放喷管就应该足够长。
- Based on one dimension flow theory and Lagrange method, the correlation of speeding rate of particles under gas flow drag with the size of particles and the length of Laval nozzle used for the gas and solid two-phase separation test apparatus was studied. 摘要采用一元流动理论和拉格朗日方法，研究了用于气、固两相分离试验装置的缩放喷管内，被气流拖曳的颗粒加速率与颗粒大小和缩放喷管长度的关系。
- The numerical calculation results show that the gas velocities increase with the reduction of curvature and the length of laval nozzle decreases with the increase of the radius of curvature. 数值计算表明，气体速度随入口段曲率半径的增大而增大，拉伐尔喷嘴和长度则随曲率半径的增大而减小。
- Li Xiaojie, Wang Jinxiang, Yan Honghao, Zhao An-de, Disturbed Solution of Symmetrical Plates Driven by Sliding Detonation of the Laval Nozzle, Explosive Materials, 2004, 33(1), 36-39. 李晓杰，王金相，闫鸿浩，赵安德，基于Laval喷管的平板爆轰驱动近似解，爆破器材，2004, 33(1), 36-39;
- A STUDY ON THE SHOCK WAVE IN A CONICAL LAVAL NOZZLE 关于锥形喷管理想膨胀射流中激波的研究
- Brief Description of Laval Nozzle 浅议拉瓦尔喷头
- Keywords laval nozzle;corrosion;vacuum;RH; 拉瓦尔喷嘴;腐蚀;真空;RH;
- Adjustable Throat Area Laval Nozzle 可调式拉法管
- The laval council finance the development of the marina. 开发小船坞的资金是由当地议会提供的。
