The static pressure decreases with the increase of wall roughness in the outer vortex region.
外旋流区的静压力随着粗糙度的增大而明显减小。
The research result shows that the wall roughness has great effects on flame transmission in gas explosion.
研究结果表明,壁面粗糙度对瓦斯爆炸过程的影响很大,相比光滑管道,粗糙管的火焰速度大幅度提高;
A numerical simulation approach taking the wall roughness effect into account was presented to simulate the glaze ice accretion.
提出了一种可考虑粗糙度影响的瘤状冰结冰过程数值模拟方法。
On the basis of experiment, the influence of wall roughness on fire transmission and overpressure in gas explosion was investigated.
在试验的基础上,研究了瓦斯爆炸过程中壁面粗糙度对火焰传播速度和超压的影响。
It is shown that the tangential velocity distribution in actual combustor differs from that in model com- busior by its wall roughness.
结果表明,切向速度分布由于壁面粗糙度的影响而偏离模型情况;
Finally, the mechanisms of reduction in pressure loss and separation efficiency of the cyclone separator caused by the wall roughness are discussed.
最后对壁面粗糙度降低旋风分离器压力损失和分离效率的机理进行了分析。
Analytical results show that the now pattern, wall roughness and wall curvature have obviously effect on the boundary layer hydraulic characteristics.
试验分析认为,水流流态,壁面粗糙度和壁面曲率对边界层特性有明显的影响。
On the basis of the experimental research, the significant influence of the wall roughness on the flame transmission law of the gas explosion was analyzed.
在试验的基础上,研究了瓦斯爆炸过程中壁面粗糙度对火焰传播速度和超压的影响。
The effects of stator and rotor wall roughness on the dynamic coefficients of the eccentric rotor in large gap annular flow have been investigated with numerical method.
研究结果表明:静子和转子壁面粗糙度对大间隙环流中偏心转子动特性系数有较大影响。
Metope: wall roughness affects the extent of the beautiful, uneven metope is easy to appear the phenomenon of cracking, the owner can use the naked eye or ruler check it.
墙面:墙面的平整度影响着美观的程度,不平整的墙面则易出现开裂的现象,业主可以用肉眼或标尺检查一下。
It is also discovered that the axial velocity distribution and velocity-weighted average swirl Angle at the outlet section of axial-flow pump vary with the changing of wall roughness.
研究还发现,水泵出口断面轴向流速分布均匀度和速度加权平均偏流角也随壁面粗糙度改变而改变。
The influences of the aspect ratio and wall roughness on the coolant flow characteristics, which mainly involve pressure loss, secondary flow and turbulence intensity, were investigated.
研究了高宽比和壁面粗糙度对压力损失、二次流动和紊流强度的影响。
The effect of wall roughness on gas-particle flows in a horizontal backward-facing step is studied using a phase-Doppler particle anemometer (PDPA) by measuring the mean and RMS particle velocities.
用相位多普勒颗粒测速仪(PDPA)测量了颗粒的平均与脉动速度,研究了壁面粗糙度对水平后台阶气粒两相流动的影响。
Hydraulic valve block balance weight piston sleeve has thin wall, high precision of geometry dimension and strict roughness, and its quality determines the lifetime of balance weight directly.
缸块平衡块的活塞套壁薄,几何尺寸精度要求高,粗糙度要求严格,其质量好坏直接决定平衡块的寿命。
The stability of the worktable will affect the surface roughness of the hole wall, which will affect the hole size precision seriously.
工作台进给的平稳性会影响孔壁的表面粗糙度,严重时会影响孔的尺寸精度。
The wall sticking of dry powder is concerned to geometric figure of cyclone chamber, roughness of wall , velocity of air and static charge.
干粉表面粘附与塔壁的几何形状、粗糙程度、空气流速、静电力等有关。
Only a small portion of their surface is actually contacting the cylinder wall. The ring area that does contact the cylinder wears down the roughness of the honing pattern on the cylinder walls.
只有一小部分表面接触到了缸壁上,接触到缸壁上的部分磨损其对应的缸壁上的珩磨粗糙度。
The report takes account into the influence of foreshore and shallow foreshore, roughness, slope, berm, wave attack Angle, vertical wall and so on.
报告给出了复杂断面上波浪爬高和越浪量的计算公式,计算中考虑了前滩、边坡糙率、边坡坡度、平台、波浪入射角以及竖墙等因素的影响。
Its structure is very complex, particularly the wall of new turbine disk is thin, physical dimension mostly is arc switching. There are many dented surfaces and they need high roughness demanding.
它的结构复杂,尤其是新型的涡轮盘壁薄、结构尺寸多为圆弧转接,存在多处凹陷的内表面,并且表面粗糙度要求高。
Turning an obstacle into a potential, that wall was exposed with all its roughness, decorated only with the signs of time.
将阻碍物变为潜能,这面墙只有暴露其粗糙,装饰只留下时间的痕迹。
The turbulence induced by the defects of nozzle, such as the burr at the inlet and outlet, and the roughness of the wall, is the main cause to decrease the length of intact jet.
当射流速度比较大时,喷管的缺陷如进口出口的毛刺和流道壁的粗糙度是诱发湍流使射流破断的主要原因。
When using this product, you just scrape the wall to level in batch according to the roughness of the wall and don't need any surfactant and linked network processing.
使用该产品墙体无需任何界面剂和挂网处理,根据墙体平整度直接批刮即可。
Roughness may be attributable to the nature of the wall substance and the method of its manufacture.
粗糙度可归因于管壁材料性质及其制造方法。
Roughness may be attributable to the nature of the wall substance and the method of its manufacture.
粗糙度可归因于管壁材料性质及其制造方法。
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