旋翼流场,rotor flow fields
1)rotor flow fields旋翼流场
1.Velocity vectors and vortex contours of therotor flow fields are measured.采用PIV(粒子图像测速)技术,对共轴式双旋翼在悬停和以不同速度前飞时的流场进行水洞试验,测量得到旋翼流场的速度和涡量分布,主要研究了共轴式双旋翼流场的垂向诱导速度沿径向的分布规律。
2.Vortex contours and velocity distribution of therotor flow fields,configuration and trajectory of the tip vortex were measured.采用粒子图像测速(PIV)技术,对共轴式双旋翼在悬停状态下的流场进行水洞实验,测量得到旋翼流场的涡量和速度分布,桨尖涡的结构和脱落轨迹等直观整体的图像,研究了共轴式双旋翼悬停流场的气动干扰特性。
3.Instantaneous vorticity and velocity distributions of therotor flow fields were obtained.测量得到了旋翼流场的瞬时涡量和速度分布、桨尖涡的结构和脱落轨迹、悬停时的尾迹边界收缩和前飞时的尾迹边界倾斜角等。
2)rotor flowfield旋翼流场
1.In order to reduce the false numerical dissipation of the rotor wake vorticity, a new hybrid method based on the Navier-Stokes/Free-Wake/Full-Potential solver has been developed for the efficient prediction of therotor flowfield.为了减少旋翼尾迹的数值耗散,建立了一个基于Navier-Stokes方程/自由尾迹分析/全位势方程的旋翼流场求解的新的混合方法。
2.Numerical simulation onrotor flowfield in hover based on unstructured embedded grid and upwind scheme为了可方便地扩展到前飞状态的计算,同时为提高旋翼流场涡量的捕捉精度和效率,采用双时间法求解惯性坐标系下的非定常N-S主控方程,空间方向上使用二阶迎风格式,在此基础上,将不同精度格式的计算结果与试验值进行对比,并讨论了桨尖形状变化对旋翼气动特性的影响,结果表明本文建立的CFD方法对旋翼悬停流场的模拟是很有效的。
3)coaxial rotor flowfield双旋翼流场
4)rotor forward flight flow旋翼前飞流场
1.Application of agglomeration multigrid method in calculation ofrotor forward flight flow;聚合多重网格法在旋翼前飞流场计算中的应用
5)rotor slipstream旋翼滑流
6)rotor inflow旋翼入流
1.Based on the curving vortex-tube model with the vortex-core corrections,a convenient computational method was developed for the prediction of the influence of helicopter maneuvering flight on therotor inflow.基于近似弯曲涡管的旋翼涡流理论模型,并计入涡核修正影响,建立了一个分析角运动对旋翼入流影响的计算方法。
英文短句/例句
1.Investigation on the Inflow and Aerodynamic Response of Rotors in Maneuvering Flight;机动飞行状态下的旋翼入流和响应分析
2.Numerical simulation of viscous flow-fields around helicopter rotor直升机旋翼悬停流场的粘性数值模拟
3.A numerical study of acoustic field radiated by uniform flow with a vortex past a profile具有旋涡的翼型绕流辐射声场的数值研究
4.Numerical Simulation and Analysis of Helicopter Rotor/Fuselage Flowfield Based on CFD Method;基于CFD方法的直升机旋翼/机身流场模拟及分析
5.The mutilgrid method in Euler equation computation about a helicopter rotor in hover悬停旋翼无粘流场数值模拟中的多重网格方法
6.The Solution for the Convergent Layer and the Divergent Layer of the Coriolis Rotational Flow;Coriolis旋流流入层和流出层统一解
7.Efficient Method for Simulation of Viscous Flows Past Helicopter Rotors and Active Flow Control;旋翼绕流的高效数值计算方法及主动流动控制研究
8.Research on Fluid Characteristic within the Rotating-wing Machinery Based on Fluid Structure Interaction Model;基于流固耦合的小型旋翼式机械内部水流特性的研究
9.Calculation of the Aerodynamic Interaction between Rotor/Wing/Fuselage of Tilt-Rotor;倾转旋翼飞行器旋翼/机翼/机身气动干扰计算
10.Design and implementation of the real-time embedded control system for mini quad-rotor UAV helicopter微小型四旋翼无人机实时嵌入式控制系统设计与实现
11.Also important are the rotation of the slipstream and the change of downwash at the tail.此外，滑流的旋转和尾翼处下洗的变化也是重要的因素。
12.Influence of Blade Thickness and Torsion on Flow Field at Low Reynolds Number for Rotor in Hover浆叶的厚度和扭转对低雷诺数旋翼悬停流场的影响
13.SD series pressure screen an inflow pressure screen，is a kind of advanced paper pulp screening equipment。本系列压力筛为外旋翼内流压力筛，是一种先进的纸浆筛设备。
14.Semi-active Control Research about the Dynamic Stability of Rotor/airframe Coupled Basing on Magneto-rheological Damper;基于磁流变阻尼器的旋翼/机体耦合动稳定性半主动控制研究
15.Research on the fluid characteristics of the new DN25 rotary wing heat meterDN25新型旋翼式户用热量表基表内部水流特性的研究
16.Analysis on Twin-Rotor/Fuselage Interactive Flowfield for Tandem Helicopter Based upon Momentum-Source基于动量源方法的纵列式直升机双旋翼/机身干扰流场分析
17.Numerical simulation of flowfield of helicopter rotor and fuselage in forward flight based on unstructured embedded grid technique非结构嵌套网格的直升机旋翼/机身前飞流场数值模拟
18.Simulation Study of Helicopter Nacelle Ventilation Cooling System Considering of Downwash Flow基于旋翼下洗流场的直升机动力舱通风冷却系统仿真
相关短句/例句
rotor flowfield旋翼流场
1.In order to reduce the false numerical dissipation of the rotor wake vorticity, a new hybrid method based on the Navier-Stokes/Free-Wake/Full-Potential solver has been developed for the efficient prediction of therotor flowfield.为了减少旋翼尾迹的数值耗散,建立了一个基于Navier-Stokes方程/自由尾迹分析/全位势方程的旋翼流场求解的新的混合方法。
2.Numerical simulation onrotor flowfield in hover based on unstructured embedded grid and upwind scheme为了可方便地扩展到前飞状态的计算,同时为提高旋翼流场涡量的捕捉精度和效率,采用双时间法求解惯性坐标系下的非定常N-S主控方程,空间方向上使用二阶迎风格式,在此基础上,将不同精度格式的计算结果与试验值进行对比,并讨论了桨尖形状变化对旋翼气动特性的影响,结果表明本文建立的CFD方法对旋翼悬停流场的模拟是很有效的。
3)coaxial rotor flowfield双旋翼流场
4)rotor forward flight flow旋翼前飞流场
1.Application of agglomeration multigrid method in calculation ofrotor forward flight flow;聚合多重网格法在旋翼前飞流场计算中的应用
5)rotor slipstream旋翼滑流
6)rotor inflow旋翼入流
1.Based on the curving vortex-tube model with the vortex-core corrections,a convenient computational method was developed for the prediction of the influence of helicopter maneuvering flight on therotor inflow.基于近似弯曲涡管的旋翼涡流理论模型,并计入涡核修正影响,建立了一个分析角运动对旋翼入流影响的计算方法。
延伸阅读
左旋噻咪唑 , 盐酸左旋咪唑,左旋咪唑药物名称：左旋四咪唑英文名：Levamisole别名： 驱蛔钩;盐酸左旋四咪唑;左咪唑;左旋驱虫净;左旋噻咪唑 , 盐酸左旋咪唑,左旋咪唑外文名：Levamisole ,Levasole , LMS , L-Tetramisole, Nemicide药理作用： 能抑制虫体肌肉琥珀酸脱氢酶的活动，使肌肉发生持续性收缩而麻痹。 适应症： 是一种广谱驱肠虫药，主要用于驱蛔虫及勾虫。 本品可提高病人对细菌及病毒感染的抵抗力。目前试用于肺癌、乳腺癌手术后或急性白血病、恶化淋巴瘤化疗后作为辅助治疗。此外，尚可用于自体免疫性疾病如类风湿关节炎、红斑性狼疮以及上感、小儿呼吸道感染、肝炎、菌痢、疮疖、脓肿等。对顽固性支气管哮喘经试用初步证明近期疗效显著。 用量用法： 1.驱蛔虫：成人每日１００～２００ｍｇ，饭后１小时顿服。儿童每日每千克体重２～３ｍｇ。 2.驱勾虫：每日１００～２００ｍｇ，饭后１小时顿服，连服２～３日。 3.治丝虫病：每日２００～３００ｍｇ，分２～３次饭后服，连服２～３日。 4.癌瘤的辅助治疗：１日量１５０～２５０ｍｇ，连服３日，休息１１日，然后再进行下１疗程。 5.治疗类风湿性关节炎等：每次５０ｍｇ，每日服２～３次，可连续服用。 6.治支气管哮喘：每服５０ｍｇ，１日３次，连服３日，停药７日，６个月为１疗程。 注意事项： 偶有头晕、恶心、呕吐、腹痛、食欲不振、发热、嗜睡、乏力、皮疹、发痒等不良反应，停药后能自行缓解。个别病人可有白细胞减少症、剥脱性皮炎及肝功损伤。妊娠早期、肝功能异常及肾功能减退的病人慎用，肝炎活动期忌用。 规格： 片剂：盐酸盐，每片含基质１５ｍｇ、２５ｍｇ、５０ｍｇ。 类别：免疫调节剂
