研究表明,近壁效应及蒸发对颗粒热泳的附加影响是不容忽视的。
The present analysis shows that the influence of the near-wall effect and the evaporation on the particle thermophoresis can not be ignored.
这一结果也进一步证实了冷壁效应是爆燃火焰在狭缝中淬熄的主要原因。
This result also proves that the effect of the cold wall is the main reason for the quenching of deflagration flames in narrow channels.
水槽实验和海岸高空照片资料上清楚的分辨出这种由反射壁效应产生的沙波的客观存在性。
From flume experiments and aeroplane photographs of the coast, one can see the existence of sand wave induced by the reflection wall.
这些装置没有反馈管来控制主喷流,也没有射流的附壁效应。它们的结构很简单可以自激振荡。
These devices have neither feedback pipes to control the main jet nor wall attachment effect of the jet on them.
作用是防止外部火焰窜入存有易燃易爆气体的设备、管道内或阻止火焰在设备、管道间蔓延。阻火器机理是通过传热作用和器壁效应将火焰被熄灭在管道中。
Role is to prevent external flame there is flammable gas fleeing into the equipment, pipe or prevent fire in the equipment, the spread between the pipes.
分析认为,由于孔壁界面滑移的软化效应,侧阻力曲线始端变为上升曲线。
Taking account of the strength softening effect of slippage, the beginning section of lateral shear curve is an ascending curve.
原始图像可发现小的和巨大动脉瘤,显示瘤腔、瘤壁、瘤体、占位效应准确,其瘤颈、瘤腔的信号多高于MRA;
The small or giant aneurysm, aneurysmal sac, wall, body, mass effect can be showed by the source images, its signals of aneurysmal neck and sac was higher than MRA.
通过选择不同的气体分子与壁面相互作用模型研究了壁面边界条件对羽流撞击效应的影响。
Influence of wall boundary condition on plume impingement effects is finally studied by applying various gas - (surface) interaction modeling.
在实验结果的基础上,通过定义壁面修正因子考虑壁面效应的影响,得到了颗粒堆积多孔介质在小填充层数时流动阻力特性的准则关系式。
On the basis of the experimental results, the empirical correlation equation was determined by taking into account of the wall effect with a wall modified factor.
笔者还讨论了“壁厚效应”产生的原因。
The cause of existing " wall thickness effect" is also discussed in this paper.
着重探讨了煤层并壁不稳定机理,结果表明,煤层井壁不稳定是物理、化学、力学与机械等因素的综合效应。
The result shows that coal seam wellbore unstability is a synthetic effect caused by such factors as physics, chemistry, mechanics and machinery.
显示了林窗边缘壁面的热力效应除与太阳高度角、太阳辐射的时间长短和强度有关之外,林窗边缘树木高度也是不可忽视的因子。
This indicates that, besides solar angle, time and intensity of radiation, the height of trees is also an important factor that influences thermal effects of vertical thermal active surface of edges.
热泳力对粒径为50微米的颗粒也有影响,但是由于颗粒的质量较大,再加上壁面效应,其作用效果远没有2微米颗粒明显,仅在近壁区颗粒的浓度略有升高,而其它部分基本不变。
Although the thermophoresis force could affect the 50-micron particle, the concentration did not change as large as 2-micron particle because of the large mass and the wall effect.
结果表明:乙烯对各细胞壁酶活性的促进效应因乙烯利施用浓度不同而异。
The results showed that the enhancement effects on cell wall enzymes changed with ethrel concentrations.
采用FLAC3D,对试样的尺寸效应、二块体地震模型、五块体地震模型和厚壁圆筒模型进行了变形局部化数值模拟研究。
Based upon FLAC3D, size effect of rock specimen, the seismic two block models, the seismic five blocks models and thick-walled hollow have been simulated to obtain localization phenomenon.
详细分析了孔眼壁附近的等效应力随牙齿压入深度的变化关系。
The variation of equivalent stress near the hole wall with the depth of the teeth pressed is analyzed.
详细地分析了孔眼壁附近的等效应力随牙齿压入深度的变化关系。
The paper analyzed the equivalent stresses of the hole wall varied with the inserted depth of tooth.
发现高黏度效应区域位于上端壁附近而不是在叶片顶部。
Regions of high viscous effects have been found to be located near the shroud rather than the blade tip.
基于非局部弹性理论,在考虑小尺度效应影响的情况下,建立了单壁碳纳米管在均匀轴向外部压力下的壳体模型。
A shallow shell model is developed for the elastic buckling of a single wall carbon nanotube under a uniform external axial pressure by using the nonlocal elastic theory.
最后,利用所得的解研究了材料的中间主应力效应和拉压强度差效应对厚壁圆筒安定极限压力的影响。
Finally, the influences of the intermediate principal stress and the strength-difference on the shakedown limit pressure of the thick-walled cylinder are investigated by the present solution.
文中根据刚体动力学及动量守恒定理,建立起颗粒–壁面碰撞三维数学模型,并采用此三维数学模型研究了壁面约束效应对细长颗粒流化特性的影响。
The three-dimensional particle-wall collision mathematical models were founded in the light of the kinetic of rigid and the momentum conservation law, and the effects of wall on the f.
光洁砂箱壁对减弱拱效应现象有利。
由于这部分电子的数目相当可观,因此近壁传导电流较之古典传导电流增大了一个数量级,这一效应足以解释实验测量的电子电流。
Because of the reasonable quantity of electrons, the current of near wall conduction is bigger than classical current by an order of magnitude, the effect can explain the current in experiments.
本文通过实验研究了不同尺寸的硬质钢球弹丸对不同壁厚的低碳钢圆钢管的侵彻和穿孔效应;
A systematic experimental study has been conducted an mild Steel tubes of various thickness in their perforation by hard steel spheres.
采用紧束缚能带理论,利用所提出的考虑卷曲效应的紧束缚能量哈密顿量,建立了公度双壁碳纳米管(DWNT)的能带结构模型;
The band structure model of commensurate double-walled carbon nanotube (DWNT) was built by using tight-binding Hamiltonian with curvature effect included.
指出热解气体注入边界层的作用主要是增加热阻塞效应和改变壁面组元浓度。
The main effect of pyrolysis gas on surface behavior which increased heat blockage of boundary layer and varied the concentration of gas species are presented.
在近壁区范围内,采用壁函数技术解决壁面效应问题。
In the areas close to the boundary, the technique of wall function is adopted to solve the effect of the wall surface.
在高热流条件下电热毛细管材料的消融过程中 ,会形成壁面蒸气罩效应 ,这种等离子体壁面蒸气罩特性对消融控制电弧发生器的工作性能非常关键。
While the capillaries materials are being ablated under the high heat fluxes condition, vapor shield often occurs near the inner wall, which could help control the surface being eroded furthermore.
在高热流条件下电热毛细管材料的消融过程中 ,会形成壁面蒸气罩效应 ,这种等离子体壁面蒸气罩特性对消融控制电弧发生器的工作性能非常关键。
While the capillaries materials are being ablated under the high heat fluxes condition, vapor shield often occurs near the inner wall, which could help control the surface being eroded furthermore.
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