The author of this paper analyzes and calculates the relative velocity distribution at the blade exit of runner caused by limited blades and offers the way to improve blade design.
本文作者定量分析计算由转轮有限叶片数引起的叶片出口相对速度分布状态,并以所获结果提出了改善叶片设计的措施。
Based on the calculated liquid and solid phase velocity fields, the numerical simulation of silt abrasion on runner blade surfaces has been carried out.
根据液相和固相三维流速场的计算结果数值模拟了转轮叶片面的泥沙磨损。
In particular, expressions of flapping coefficients are derived, including the effect of variable induced velocity distribution but in terms of blade parameters and flight parameters only.
特别是在挥舞系数的表达式中,考虑了诱导速度的变化,但直接与桨叶参数和飞行参数有联系。
Numerical simulations of the course of the plate blade impacting target with the different angles and the initial velocity were performed based on the finite element model.
建立有限元模型,对平板条叶片以不同角度和初始速度撞击矩形靶板的过程进行了数值模拟。
Result of analyzing experiment picturesindicates that particle radial inlet velocity component influences significantly the blade erosionmanner.
经对实验照片的分析可知,叶轮入口颗粒径向速度的大小是造成叶轮冲击磨损的主要原因。
The increment of blade length makes the equal work distribution along the blade length be unable to dig the potential power of long blade at the part with high circumferential velocity.
叶片高度的增长,使沿叶高的等功设计已经不能充分发挥长叶片高圆周速度部分的做功能力。
With the thickness distribution of a blade and the pressure or velocity distribution on its suction specified, the blade contour and the flow field of cascades that satisfy the gi…
对于给定的叶片厚度分布和吸力面上的设计压力或速度分布,应用本文方法可求得满足设计要求的叶片几何形状和叶栅流场。
The results of this simulation showed that the maximum temperature appears at the tip of the blade. And the particle velocity will reach the maximum value at the end of the blade finally.
模拟结果表明,叶片出口端部前缘,温度达到最大,颗粒的运动速度也达到最大值。
The system keeps the linear velocity of the shear blade in pace with that of the rolled piece and warrants the accuracy of the specified cut length.
该系统能够逻辑控制剪刃的运行规律,保证剪刃线速度与轧件线速度同步,保证剪切产品长度的定尺精度。
The efficiency distribution along blade span and the inlet and outlet velocity triangle measurement of rotor blades were made around the designing point.
在设计点附近作了沿叶高效率分布及动叶进、出口速度三角形的测定。
In addition, the pressure and velocity in cooling fan flow field are analyzed and the relations between flow rate, rotation speed, blade number and aerodynamic noise of cooling fan are studied.
同时,对风扇流场的压力和速度进行分析;研究了风扇流量、风扇转速、扇叶数和气动噪声相互之间的关系。
Under high velocity flow conditions, cascade losses are mainly caused by radial drift of the boundary layer along the suction surface and by blade wakes.
在高速流动条件下,叶栅损失主要是吸力面边界层径向串流及其尾迹。
In this paper wing had wing-blade and wing hadn't wing-blade applied for wind tunnel tests at different attack Angle and velocity.
文中进行了带翼刀机翼和不带翼刀机翼在不同迎角和风速下的风洞吹风试验。
Their loss performance, exit flow angle, exit flow velocity as well as the flow velocity distribution on the blade-profile surfaces obtained in both cases are analyzed comparatively.
本文对试验的损失特性、出气角特性、速度特性、叶型表面速度分布特性等作了对比分析。
After the vortex distribution is solved according to the boundary condition of no-flow-penetrating through the blade surface, the velocity reduced by the propeller can be calculated.
根据桨叶表面流动不穿透条件解出升力面奇点后,然后再求它们对流场的扰动。
The results indicated that in the two-blade impeller, the fluid mainly flowed along the suction side, the velocity is very small on the pressure side, and a typical jet-wake flow has been observed.
由测量结果可知:在双叶片叶轮内,流体基本沿叶片吸力面流动,叶片压力面上的相对速度较低,在压力面出口出现了速度很低的回流区,有明显“射流-尾迹”特征。
Their loss performance, exit flow Angle, exit flow velocity as well as the flow velocity distribution on the blade-profile surfaces obtained in both cases are analyzed comparatively. It is proven t...
本文对试验的损失特性、出气角特性、速度特性、叶型表面速度分布特性等作了对比分析。
Oil pressure unit control is adopted in round blade displacement and feeding, and realize stability, velocity and positioning accurate.
圆刀移位、圆刀进给均采用油压单元控制,可实现运动平稳快速、定位准确。螺旋纸管机纸管机设备卷纸管机3。
Oil pressure unit control is adopted in round blade displacement and feeding, and realize stability, velocity and positioning accurate.
圆刀移位、圆刀进给均采用油压单元控制,可实现运动平稳快速、定位准确。螺旋纸管机纸管机设备卷纸管机3。
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