本文就含水的倾斜多孔介质层在侧向加热条件下流体热对流稳定性问题进行试验研究。
A experimental investigation on the stability of thermal convection in a sloping porous Medium under lateral heating is reported.
反对流动工人增加的人认为这会导致犯罪率升高,从而危害社会稳定。
Those who object to the rising migrant population argue that increasing numbers lead to rising crime rates and harm social stability.
应用交替分段显隐方法求解变系数对流扩散方程,此方法具有很好的并行性且无条件稳定。
Using alternating segment explicit implicit method for the variable coefficient convection diffusion equation. The method has the obvious property of parallelism and is unconditionally stable.
对流动性较低的税基征收的税收比较稳定。
一般认为,米粒组织代表最上部的对流元穿入稳定大气时的超越部分。
The granulation is commonly thought to represent the overshoot of the topmost convective elements as they penetrate the stable atmosphere.
分析指出,该飑线系统是由高空槽前型的上干下湿引起的不稳定强对流天气。
The squall line is a kind of instable and strong convective weather caused by the air with upper-layer dry and lower-layer wet in front of the upper-troposphere trough.
在诸强迫项中,稳定性凝结加热对这一时段梅雨锋暴雨的贡献最大,而对流凝结加热的作用很小。
The stable condensation heating is the most important factor to the maintenance of the storm rainfall during this period.
试验测定振动助流时散体颗粒在初始阶段和稳定流动阶段的振动加速度信号,并对流动场中波的传播规律进行分析。
The vibration acceleration signals at initial stage and steady stage in flowing granular media are tested, and the propagation of wave in the flowing field is analyzed.
高空急流提供动力不稳定条件,低空急流是暴雪区水汽的提供者和对流不稳定能量释放的触发者;
The upper-level jet created the dynamic instability condition and the low-level jet played the vapour provider of the snowstorm and the trigger of convective instability energy release.
对流层低层南风气流的加强,可影响对流层中层的暖湿程度减弱,从而加强了对流层低-中层内的对流性不稳定。
The wet and warm degree in middle troposphere is weakened and the convective instability in lower middle troposphere is strengthened by increasing wind speed of southern flow.
文中利用泡函数构造数值,求解抛物型强对流扩散问题的稳定化方法,并给出收敛性分析。
A new stabilized finite element method by also presented use of residual-free bubbles for the parabolic convection-dominated diffusion problems, and proved the convergence.
将有限体积和有限元方法相结合,解决对流扩散方程问题,并给出了稳定性分析。
In this paper, finite bulk-finite element means is presented for solving convection-diffusion problem, moreover give out the stability analysis.
本文将从合理使用拉边机、稳定锡液对流、稳定玻璃液流等方面所采取的有效措施作一些介绍。
This article also describes some efficient steps for operating edge roller , stabilizing convection of tin fluid and settling flow of glass fluid .
高空前倾槽的结构加大了大气的垂直不稳定,是引起强对流天气的重要原因。
The structure of the forward-tilted trough increases the atmospheric instability and caused the severe convective weather.
产生冬季暴雨的物理条件与充沛的水汽、强烈的对流不稳定和辐合上升运动密切相关。
The physical conditions of rainstorm creating is related with plentiful vapor and instable strongly air convection and convergence upward movement.
还研究了压力梯度对临界雷诺数的影响,探讨了不同压力场对流动稳定性作用的规律性。
The effect of the pressure gradient on critical Reynolds number is also displayed and the influence rule of the different pressure fields on the flow stability is exploited.
它能预示强对流天气层结的不稳定特征和高能量。
Warning index pattern show convective instability characteristic and high energy.
研究了复合稳定剂的种类及配方对流变性能的影响。
Influences of variety and formula of composite stabilizer on rheological properties were studied.
具体表现为其误差大值区通常出现在对流不稳定区,并且随着水平风场向其下游扩散。
The results show that, the development and evolution of initial perturbation errors have a close relationship with the regions of the convective instability and the horizontal wind fields.
了解强不稳定度参数及其使用特性无疑对强对流天气的分析与预报有很大帮助。
To know the environmental instability parameters and their character will undoubtedly be beneficial to severe weather forecasting.
原太阳吸积盘为冷的薄盘,盘中热对流不稳定性由外而内,由上而下地终结;
For the cold protosolar accretion disc, convective instability will gradually end from the outer region to the center and from the surface to central plane.
深层对流和不稳定能量的释放可促使降雨的发生。
The deep convection and the release of unstable energy can act as a trigger.
提出一种研究流层中温盐对流的稳定性的方法。计算简单,且可应用于更广泛的一类系统。
A method is presented for analysis of the stability of the thermohaline con - vection in a fluid layer. The method can be applied to a wider class of systems.
熔池中存在的对流和激光扫描过程中工作台运动的不稳定造成了熔池表面波纹状组织和熔池中三维条带状组织的出现。
Two kinds of banded structure caused by convection and unstable moving of the worktable have been observed on the surface of the molten pool and in the melted region.
高频不稳定性使室壁对流传热系数大大增加。
High frequency instabilities result in grossly increased convective heat transfer coefficients in the chamber walls.
文中利用泡函数构造数值,求解抛物型强对流扩散问题的稳定化方法,并给出收敛性分析。
A new stabilized finite element diffusion problems, method by also presented use of residual-free bubbles for the parabolic convection-dominated and proved the convergence.
提高对流天气临近预报准确率的关键问题之一是了解大气的垂直稳定度和垂直风切变。
To improve the accuracy of convection weather forecast, one of the key issues is to find out the atmospheric vertical stability and wind shear.
着重研究了径向粘滞力对含径向对流吸积盘的径向-环向不稳定性的影响。
We find that the introduction of radial viscous force have no influence on stability of viscous and thermal modes, but more influence on the stability of acoustic modes.
着重研究了径向粘滞力对含径向对流吸积盘的径向-环向不稳定性的影响。
We find that the introduction of radial viscous force have no influence on stability of viscous and thermal modes, but more influence on the stability of acoustic modes.
应用推荐