Based on the two-phase stratified flow model and turbulent model of lubrication oil in bearing chamber,the paper solved three-dimensional Navier-Stokes equations by the method of Volume Of Fluid(VOF) tracing the dynamics of the gas/liquid boundaries.
基于轴承腔中润滑油气液两相分层流动模型和湍流模型,采用VOF方法追踪气液界面等技术求解三维N-S公式,对腔内润滑油气液两相分层流动的特性进行了研究。
Based on the two-phase homogenous flow of lubrication oil in bearing chamber,the paper solves three-dimension Navier-Stokes equations by the method of the turbulent model and Finite Differential Method(FDM).
基于轴承腔中润滑油的两相均匀流动模型,采用湍流模式和有限差分数值方法计算轴承腔内三维定常N-S方程,对腔内润滑油的气液两相均匀流动特性进行研究,以获得气液两相均匀流条件下润滑油流场、压力场和速度场在轴承腔内的分布情况,分析转子转速、含气率和润滑油进口速度对润滑油出口压力以及润滑油与壁面之间剪切力的影响,同时对单相流和两相均匀流润滑性能差异进行比较。
Based on the problem of the gas-liquid two-phase flow in aero-engine bearing chamber lubrication,the model was bulit on the basis of theoretical method of using neural network,from which the gas-liquid two-phase flow regime can be identified in bearing chamber.
基于航空发动机轴承腔润滑中所存在的气液两相流问题, 采用基于神经网络的理论方法建立预测模型, 以便进行轴承腔内气液两相流流型的识别。
Through the identification study on the air-fluid two-phased flow-type of bearing cavity in aero-engine,the prediction model of air-fluid two-phased flowtype was established,thus provided technological support to the identification on air-fluid two-phased flow-type of lubricant inside the bearing cavity of aero-engine.
利用DNA编码和混沌神经网络技术,构造了基于DNA编码的混沌神经网络,通过对航空发动机轴承腔气液两相流型的辨识研究,建立了气液两相流型预测模型,从而为航空发动机轴承腔内润滑油气液两相流型辨识提供了技术支持。
The cooling system includes the cavity behind the high pressure turbine disc,the cavity in front of the low pressure turbine disc,supporting guide vane cavity,bearing cavity,and some connecting cooling air passages.
以典型的小型涡轮风扇发动机的涡轮空气系统为研究对象,用数值计算的方法研究了包括高低压涡轮盘腔、导向器内腔、轴承腔和相连的冷却气路在内的流动和传热特性。
The coaxial-cavity is one of the hopeful method raising the electronics efficiency at present, joining the inside conductor axle in the cylinder cavity makes the pattern register nearby work pattern becomes rare and to be of advantage of the model selection, restrain the model competition and recovery electron beam to step-down easily.
分析了各种参数时其的影响,并用计算机编程进行数值分析,最终得出了理论上电子效率可以达到40%以上的同轴腔体结构的结论。
By use of coupling matrix in pectination form,a combline coaxial-cavity filter with λg/4-type SIR is designed.
根据阶跃阻抗谐振器SIR(Stepped Impedance Resonators)的基本原理,采用1/4波长型SIR作为同轴腔滤波器的基本谐振单元,利用耦合矩阵采用梳状线形式,设计了一种梳状SIR同轴腔滤波器。
Linear Research of Coaxial-Cavity Cyclotron Autoresonance Maser (CARM) Amplifier;
同轴腔回旋自谐振脉塞(CARM)的线性研究
Design of Miniature SIR Coaxial-cavity Filter
小型化SIR同轴腔体滤波器的设计
Research on Higher Order Transverse Magnetic Mode of Microwave Cylindrical Coaxial Cavity and Its Out-coupling
微波圆柱和同轴腔高阶横磁模式及其输出耦合
reentrant cylindrical cavity
圆柱形凹腔, 半同轴空腔
A Note on Caculating the Equivalent Resonator Length of Coaxial Sperical Resonator
计算共轴球面腔等价腔长时应注意的问题
Output Circuit of π-TM_(610) Mode Double-Gap Coaxial Cavity Coupled with Coaxial Line
π-TM_(610)模同轴双间隙腔耦合同轴线输出电路
Optimum Design of Oil Recess Used in Hydrostatic Bearing Based on ANSYS
基于ANSYS的静压轴承油腔结构优化设计
Theoretical Study on a Large Radius Coaxial Cavity Terahertz Gyrotron
大半径同轴谐振腔太赫兹回旋管研究
A Fiber-Optic Air-Backed Mandrel Hydrophone
带空气腔芯轴型光纤水听器特性研究
Numerical simulation analysis of sector and circular oil recess temperature field of heavy hydrostatic
重型静压轴承扇形腔和圆形腔温度场数值模拟与分析
Numerical Simulations of Structural Misalignment in Coaxial Waveguide and Coaxial Open Resonator
同轴波导和开放式同轴谐振腔结构偏心问题的模拟研究
Study of Frequency-tuning and Composite Resonator for Axial Flow CO Laser;
轴流CO激光器调谐及其主副腔理论研究
Research on Cylindrical Coaxial TM_(81n) Mode Cavity Resonator for Millimeter Wave Multi-beam Klystron
基于同轴TM_(81n)模谐振腔毫米波多注速调管研究
Experimental Investigation of Effects on Ignition in an Axisymmetric Ramjet Combustor Based on Cavity
轴对称凹腔燃烧室点火影响因素的试验研究
Using Coaxial Cavity and Coalesce with Perturbation Techniques to Measure Medium's Complex Permittivity
同轴谐振腔及微扰法测量介质介电常数
Cylindrical coaxial TM_(812) mode cavity resonator for millimeter wave multi-beam klystron
基于同轴TM_(812)模谐振腔的毫米波多注速调管
NUMERICAL INVESTIGATION OF FLOW AND HEAT TRANSFER IN A ROTATING CAVITY WITH AXIAL THROUGHFLOW
轴向通流旋转盘腔中流动与传热数值研究
A MATRIX THEORY FOR OPTICAL PASSIVE RESONATORS (IN CYLINDRICAL COORDINATES) (II) CALCULATION FOR AXIAL SYMMETRIC STABLE RESONATORS
光学无源谐振腔的矩阵理论(柱坐标)(Ⅱ) 轴对称稳定光学无源谐振腔的计算
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