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羽流 in a sentence

"羽流"'s meaning  
  1. A similarity research for low - altitude solid propellant exhaust plumes
    固体火箭发动机低空羽流场的相似研究
  2. The particle simulation of the plume flow exhausted from the stationary plasma thruster
    稳态等离子体推进器羽流的粒子模拟
  3. The modified multi - zonal model had three parts , i . e . a wall flow module , a plume flow module and a heat moving module
    修改后的多区热质平衡模型包括3个模块,即壁面流模块、热羽流模块和热移动模块。
  4. A 3 - d baroclinic ocean model is used to examine the influence of tide , offshore wind and upwelling - favorable wind on the river plume development
    摘要采用三维斜压海流模型模拟了潮汐混合、离岸风以及上升流风对河流羽流发展的影响。
  5. In the research of water arcjet , serious oscillation existed in jet and arc voltage was found and it led to unstable work state of arcjet
    目前对水电弧加热的研究过程中,发现水电弧加热发动机羽流和弧电压存在强烈的脉动,不能稳定工作。
  6. 羽流造句挺难的,這是一个万能造句的方法
  7. The research indicates that mpt shows many advantages , such as moderate specific impulse , high efficiency , long lifetime , low plume contamination , simple structure , low weight , and so on
    通过研究表明, mpt具有比冲适中、效率高、寿命长、羽流污染小、结构简单和重量轻的特点。
  8. The most powerful plume in nature is volcanic plume , which is formed by ejection of mixture of pyroclasts and volcanic gases in to the air from volcanic vent
    世界上中最壮现的羽流现象是由爆炸性火山喷发的各种火山气体、细粒的火山喷发碎屑物所组成的火山喷发柱,也就是我们俗称的火山蘑菇云。
  9. Microwave plasma thruster ( mpt ) is a new type of electro - thermal thruster , which has widely applied prospect because of its high specific impulse , long lifetime , low plume contaminant and so on
    微波等离子推力器( mpt )是一种新型的电热型推力器,它具有比冲高、寿命长、羽流污染小等优点,具有广阔的应用前景。
  10. Our research found that , the main reason which led to the oscillation of jet and arc voltage was the oscillation of propellant flowrate . the oscillation of flowrate was caused by the oscillation of water evaporation in pipes
    本文的研究发现导致水电弧加热发动机羽流和电压脉动的主要原因为推进剂流量供给的脉动,而供给流量的脉动是由于水在管内汽化的脉动引起的。
  11. His pioneering work on the statistical behavior of individual thermal plumes led to the discovery that active and passive scalars share statistically similar features , which have been praised by his peers as " important to the field of turbulence in fluids " and " shed an original light on rayleigh - benard convection problem "
    他在研究单个热羽流的统计行为方面进行了开创性的工作,并发现主动标度量和被动标度量具有相似的统计性质。此成果被同行誉为对湍流领域的重要贡献以及对瑞利-伯纳德湍流对流做出了原创性的贡献。
  12. The influence of parameters such as mass flow , input power , and constrictor size on arcjet performance is also analyzed . this work provides an experimental foundation for the numerical simulation study and optimized design of arcjet . a high - speed , high - resolution , multi - line spectroscopic diagnostic system has been improved to diagnostic the excitation temperature of arcjet plume
    本文优化并改进了一套高速、高精度的多谱线电弧等离子体光谱诊断系统,使其适用于电弧加热发动机羽流激发温度的诊断,并利用该系统诊断了发动机出口羽流的非平衡程度和温度沿径向的分布。
  13. According to their space position , the seismic features of shallow gas in this region can be divided into three groups : ( 1 ) features in the stratum : acoustic blanket , acoustic curtains , acoustic turbidity , irregular strong top reflection boundary , and phase pull - down in both flanks ; ( 2 ) features of the seabed : seabed pockmark and giant sunken pit ; ( 3 ) features in the seawater column : acoustic plumes , cloudy turbidity and point - line - type reflection
    该区的浅层气地震特征按空间位置分为3大类: ( 1 )地层中的特征:声学空白、声学幕、声学扰动、不规则强反射顶界面、两侧相位下拉; ( 2 )海底面的特征:海底麻坑、大型塌陷坑; ( 3 )海水层中的特征:声学羽流、云状扰动、点划线反射。
  14. Numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation . it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source . the flame area which has developed from the fire source is an area of chemical reaction caused by combustion . even if grids in the vicinity of the fire source are made fine , it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface . therefore , we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results . it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall . the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume
    运用cfd进行数字模拟,以了解纵向通风隧道内热烟气流的特性.通过模拟发现对火源进行模拟非常重要,热烟气流特性受火源位置的影响很大,并且对火源模拟方法很敏感.火源生成的火焰区是燃烧引起的化学反应区域.即使火源附近的木垛排列完好,也很难在考虑这些化学反应条件下模拟热生成区域.建议考虑纵向通风隧道内火焰形状并对它进行数字模拟.模拟结果与试验结果非常吻合.试验证明,在纵向通风隧道内,热烟气流从靠近墙体火源处顺风向隧道中心蔓延.数字模拟结果发现,火灾羽流造成的螺旋上升空气会在墙体和羽流之间形成一个涡流区
  15. Carried out experimental research on conditions of different point heat source ( single , double and many heat sources ) , and analyzed the influence of such factors as temperature of air - in , amount and distribution of inlets and outlets , heat emission quantity of heat sources and so on , on distribution of indoor air temperature 、 shape of plume flow 、 heat lamination height 、 ventilation efficiency 、 thermal comfort and so on
    考虑不同点热源(单、双及多点热源)条件下地板送风的系统特性,通过实验研究,分析了不同送风温度,送排风口数量及位置,热源发热量的大小等因素对室内温度分布、羽流流态、热力分层高度、通风效率、热舒适性等的影响。
  16. Abstract : numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation . it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source . the flame area which has developed from the fire source is an area of chemical reaction caused by combustion . even if grids in the vicinity of the fire source are made fine , it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface . therefore , we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results . it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall . the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume
    文摘:运用cfd进行数字模拟,以了解纵向通风隧道内热烟气流的特性.通过模拟发现对火源进行模拟非常重要,热烟气流特性受火源位置的影响很大,并且对火源模拟方法很敏感.火源生成的火焰区是燃烧引起的化学反应区域.即使火源附近的木垛排列完好,也很难在考虑这些化学反应条件下模拟热生成区域.建议考虑纵向通风隧道内火焰形状并对它进行数字模拟.模拟结果与试验结果非常吻合.试验证明,在纵向通风隧道内,热烟气流从靠近墙体火源处顺风向隧道中心蔓延.数字模拟结果发现,火灾羽流造成的螺旋上升空气会在墙体和羽流之间形成一个涡流区
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