Laval nozzle
英
美 [ləˈvɑl ˈnɑːzl]
拉瓦尔喷嘴；缩扩喷嘴
双语例句
- Thrust Determination of an Engine with Laval Nozzle with Large Simulated Ambient Pressure Deviation
环境压力大偏差条件下拉瓦尔喷管发动机高空推力的确定 - The deposit of laval nozzle has a certain thickness uniformity requirements.
拉瓦尔喷管的电铸层有一定的均匀性要求。 - Improvement of Laval nozzle calculation model and simulative verification in aero-engine performance calculation
拉瓦尔喷管计算模型的改进及其整机仿真验证 - A second tube is configured as a Laval nozzle for the delivery of oxygen and encloses a first central tube for the delivery of solid substances or dust.
第二管被设计成用于输送氧气的拉伐尔喷嘴形状并且它包围着用于输送固体物质或粉尘的第一中心管。 - The Laval Nozzle Design and Numerical Simulation of Flow Field for A Supersonic Arc-spraying Gun
超音速电弧喷枪的拉瓦尔喷嘴设计及流场的数值模拟声速喷嘴流量检定装置 - Numerical Simulation of Flow Field in Laval Nozzle of Oxygen Lance
氧枪喷头Laval喷管内流场的数值模拟 - The feasibility analysis of Laval nozzle applied to the complex rocket motor
复合发动机选用拉瓦尔喷管的可行性分析 - Design analysis and realisation of Laval nozzle for laser cutting
激光切割用拉伐尔喷嘴的设计分析与实现 - Shock wave formed in the conical Laval nozzle is calculated by the characteristic lines method. The existing areas for two family characteristics behind shock wave and numerical solution method by characteristic method for shock wave are given.
用特征线方法对锥型喷管超音速流中形成的激波进行了计算，给出了两族特征线在激波后的存在区域和激波的特征线数值求解方法。 - A simple model was proposed to study the flows in the Laval nozzle under water.
针对导弹水下发射时喷管的气体流动问题，建立了水下喷管流的简化模型，定性地研究水环境的惯性对水下喷管内气体流动造成的阻滞作用。 - Through flow analysis for gas flow in a Laval nozzle and a equal cross section area friction composition pipe, a method for determining a equal cross section friction pipe length and some factor have been put forward.
通过对气流在拉伐尔喷管与等截面摩擦组合管中的流动分析，提出了确定等截面摩擦管的长度方法及其考虑因素。 - Cold flow field and propulsive performance of a micro Laval nozzle
微尺度拉伐尔喷管冷态流场及其推进性能 - 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。 - Characteristics method on processing shock wave in supersonic jet for Laval nozzle
拉伐尔喷管射流中喷口激波处理的特征线法 - A wet flow inside Laval nozzle was calculated and the results showed a good agreement with experimental data.
对某Laval缩放喷管内的湿蒸汽自发凝结流动的数值模拟结果表明，本文所采用的数理模型及计算方法是有效和可靠的。 - 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。 - Study on Gas-Solid Two-Phase Flow in Laval Nozzle and Laval Nozzle Length
缩放喷管内的气固两相流动和缩放喷管长度的研究 - Study of Dense Phase Pneumatic Conveying Mechanism& Application Study Adjustable Throat Area Laval Nozzle
密相气力输送机理研究及可调拉伐尔管应用研究 - The Laval nozzle length increases with the size of particles under the same speeding rate of particles.
在颗粒加速率相同的情况下，颗粒越大，所需的喷管长度就越长。 - A wet steam experiment system is established with a Laval nozzle generating wet steam.
构建了湿蒸汽实验系统并进行了蒸汽湿度测量的实验研究。 - A numerical method for spontaneous condensing flow and its application on Laval nozzle
自发凝结流动数值模拟方法及其在Laval喷管中的应用 - 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径。 - This paper introduces an experimental Laval nozzle apparatus which is the first one of its kind developed in China and used to study the spontaneous condensation phenomena of the supersaturated steam.
本文介绍了我国第一台用以研究过饱和水蒸汽自发凝结现象的拉伐尔喷管试验装置。 - 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.
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。 - 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 - In the paper, the parameters of Laval nozzle use the sprayer of Baosteel'300t converter.
文中所用喷管的参数取自宝钢300吨转炉五孔氧枪喷头。 - Such as flowing situation in Laval nozzle under different operating mode condition, flow characteristic of traditional supersonic jet when operating pressure and ambient temperature was different and the effect of different craft parameters to flowing characteristic of coherent jet flow field with helium side were discussed mainly.
重点讨论了不同工况下Laval喷管内的流动状况、传统超音速射流在不同的操作压力和环境温度时的流动特征以及带有氦气伴随流情况时，不同工艺参数对聚合射流流场的流动特征的影响。 - In this paper, the influence of air flow to the process of pneumatic conveying is researched, air flow control of pneumatic conveying is analysed and adjustable laval nozzle is designed and simulated based on the mechanism of pneumatic conveying.
本文以气力输送机理出发，研究了供气量对输送过程的影响，对气力输送气量控制进行了分析，设计了可调式LAVAL管，并进行了相关计算和模拟。 - The methods of inlet channel of laval nozzle and smaller area of vent hole have been put forward to limit the spin rate of turbine generator.
提出选用拉伐尔管式进气道、和较小的排气孔面积的方法来限制涡轮发电机的转速。 - Through Fluent, I prove that under experiment condition, de Laval nozzle can be in the working status.
通过基于Fluent软件的流体仿真证明了在实验条件下拉伐尔喷管能够处于系统需要的工作状态。