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   量纲-时间 的翻译结果: 查询用时:0.015秒
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量纲-时间
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  dimensionless time
     The calculation results reveal that the dimensionless time for the surface to attain the critical thermal stress for infinite plate is the longest, infinite cylinder takes the second place, while the dimensionless time for the surface to attain the critical thermal stress for ball is the shortest in case of the same Biot numbers.
     计算结果表明,在相同Biot模数的条件下,无限大平板表面达到临界热应力的量纲-时间最长,无限长圆柱体次之,圆球体表面达到临界热应力的量纲-时间最短;
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  相似匹配句对
     Time
     时间
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     Time is...
     时间
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     Dimensional Quantitative Analysis
     量纲定量分析
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     The characteristic time obtained from dimensional analysis offers a reference value for computational time step.
     量纲分析得到的特征时间为计算时间步长提供了参考值。
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     Time, Time-space
     时间时间-空间
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  dimensionless time
The dimensionless time t plays the part of the small parameter.
      
The asymptotics of the obtained dependences at low and high values of dimensionless time and in the vicinity of and away from the region being heated are studied.
      
Trend-following and contrarian patterns are found to coexist and depend on the dimensionless time horizon.
      
The results show that there is a smooth transition from Rayleigh solution to Blasius or Sakiadis solution as the dimensionless timeξ increases from zero to one.
      
The correction factor is a function of the power law flow behaviour indexn, the ratio of limiting viscosities (η0 - η∞)/η0 and a dimensionless timeΛ which reflects the elastic nature of the fluids.
      
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The dynamics of RF-SQUID rings were studied with a simple analogous method.θ-τand θ-τ characteristics for RF-SQUID rings were obtained by means of a digitalcomputer, where τ is dimensionless time,θ is phase difference of the junction enclosedin the SQUID ring. θ=(dθ)/(dθ), that is, θis proportional to the junction voltage. The op-timal values of the characteristic parameters were given.

我们利用较为简单、直观的力学模拟方法,研究了恒定外磁场中的RF-SQUID环在不同外磁通、特征常数值、初始条件时的动态特性,利用电子计算机解出了一些典型情况下的θ-τ和θ-τ关系曲线.τ为无量纲时间,θ为RF-SQUID中的超导结两端的量子位相差,θ=dθ/dτ正比于该超导结两端的电压.给出了接回滞模式工作的RF-SQUID的特征常数最佳值.

A new method is used to calculate the frequency-dependent friction of nonsteady flow in analyzing the transient of hydraulic pipeline with the method of characteristics The results of calculation and experiment have been compared to verify the hligh speed and accuracy of the calculation by this method. Theinfluence of the non-dimensionalized time factor △τ =v/R2 △t on the calcula-ting accuracy is also discussed here. This influence must be taken into account in the design of dynamic simulation of hydraulic systems....

A new method is used to calculate the frequency-dependent friction of nonsteady flow in analyzing the transient of hydraulic pipeline with the method of characteristics The results of calculation and experiment have been compared to verify the hligh speed and accuracy of the calculation by this method. Theinfluence of the non-dimensionalized time factor △τ =v/R2 △t on the calcula-ting accuracy is also discussed here. This influence must be taken into account in the design of dynamic simulation of hydraulic systems.

本文在用特征线法分析液压管道的瞬态响应时,采用新的方法计算管道在非恒定流情况下频牛相关摩擦。文中还讨论了无量纲时间因子Δτ=ν/R~2Δt对计算精度的影响关系,可作为液压系统仿真程序设计的参考。

The present paper is the numerical solution of the unsteady incompressible viscous flow over Joukowsky airfoil by Navier-stokes equation with angle of attack of 0?and 42? The thickness ratio of the symmetrical airfoil is 25.8%. Nondimensional time interval is from t = 0 to t = 10. Nu-merical results of interest, such as stream function distribution, surface pressure distribution, lift and drag coefficients are computed.

本文利用N-S方程计算了绕Joukowsky翼型的粘性流动,迎角为0°和42°,对称翼型的厚度为25.8%,无量纲时间间隔为t=0到t=10。计算结果包括:流函数分布,翼面压力分布和升力系数以及阻力系数。

 
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