• Gas-solid two-phase jet flow is widely used in many fields.

    气固两相射流有着广泛的应用领域。

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  • The problem of reverse jet flow is simulated with the software.

    对反向喷流流场进行了数值模拟研究。

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  • Experiment shows the rock breaking efficiency of jet flow impact pressure is enhanced.

    实验表明,提高了射流冲击压力的破碎岩石效率。

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  • Water jet flow is one of the decisive factors for drilling rate during rock bit drilling.

    在牙轮钻头的钻进中,水射流是钻进速度快慢的决定因素之一。

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  • This article introduced the structure, working mechanism and application of jet flow sand washer.

    本文介绍主动脉内气囊反搏和体外反搏装置的原理和临床应用。

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  • The test results show that the structure of jet flow includes the beginning section and the basic one.

    试验结果表明,射流结构由初始段和基本段组成。

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  • The measurement of velocity of the jet flow field is carried out with the TSI-IFA300 constant temperature anemometer.

    利用TSI-IFA300热线风速仪系统对致动器喷口外的流场进行了测量。

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  • The flow density distributions of jet flow shock field have been measured using Moire schlieren method in this paper.

    文中用莫尔条纹法测出了射流冲击场的气流密度分布。

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  • The results show that the actual turbulent round jet flow must be simulated by a three-dimensional analysis with inlet perturbations.

    分析了不加扰动和加扰动模拟的本质差异,指出准确预报实际圆湍射流流动应采用施加入口扰动的三维模拟。

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  • The vortex flow is resulted from inertial centrifugal force and the jet flow is from strong convection by the horizontal convergence.

    充分说明龙卷风由涡旋流和急流这两种流叠加而成,涡旋流是由惯性离心力造成的,急流是由水平辐合辐散而引起的强对流。

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  • Next, the belieal columnar vortex get enough the vorticity supplied by the crosswise spread of the secondary jet flow to rotate stably.

    同时,分流射流横向扩展继续为螺旋柱状旋涡提供足够的涡量,使其稳定旋转。

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  • The lift force due to the action of jet flow is analysed and the conditions of improving the safety factors of apron slab are presented.

    分析了使护坦板块失稳的上举力的成因; 指出了增加护坦板稳定性的条件。

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  • The treatment can be used to describe the effect of cross angle and density ratio on the axial velocity decay in fully developed jet flow.

    该法可较好地描述射流交叉角度、密度比对轴线上轴向速度的影响。

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  • This is the reason of the problem of dissipation. The purpose of this study is to investigate the jet flow cooling of a power heated plate.

    这也造成产品散热上的问题,因此本文以喷流冷却的方式对一小型高发热量的加热板进行研究。

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  • Angular rate is selected to represent the vibration characteristic. It was measured by using piezoelectric jet flow gyroscope when launching.

    采用角速率作为定向器束振动特性的表征,用压电射流角速率陀螺仪测量了定向器束实际发射状态下的角速率。

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  • The article calculates unsteady jet flow in concentric canister launcher with three different clearances between inner canister and outer canister.

    文中针对三种不同内、外筒间隙的同心筒发射装置,对其发射过程中发射筒内的燃气射流流场进行了非定常数值模拟。

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  • Results showed that the jet flow length, concentration and anti-attenuation of coherent jet oxygen lance were better than that of common oxygen lance.

    结果表明,集束射流氧枪比普通超音速氧枪射流长,射流集中、衰减慢。

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  • Therefore, in order to improve the performance of hydraulic servo valve, it is important to study the mathematical model and distribution of jet flow field.

    因此,为了改善由射流前置级驱动的伺服阀的性能,研究伺服阀前置级射流流场的数学模型及分布规律是至关重要的。

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  • Both the velocity of the sound-excited jet flow at a small circular orifice and the nonlinear impedance of the orifice are measured at high sound intensity.

    在高声强下测量了微圆孔处声激发射流的速度和微圆孔的非线性声阻抗。

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  • Based on the boundary condition of jet flow in a niche and the interaction of jet with air current, a pressurization relation equation have been established.

    本文根据壁龛射流的边界条件,进行射流与通风气流之间运动和力的作用关系分析,建立了壁龛射流的增压关系式。

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  • Induced by the high-speed feed jet flow, the solid particles above the feed nozzle tended to flow down, and a reverse flow zone was formed along the riser wall.

    受喷嘴区高速射流的影响,喷嘴上方固体颗粒呈向下流动趋势,形成一个诱导回流区域。

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  • For premixed burner, burning temperature is highest, combustion focuses in the interior of spout mainly, and influence of swirling jet flow on mainstream is great.

    完全预混式燃烧器燃烧温度最高,燃烧主要集中在喷口内部,主流受旋转射流影响大。

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  • Making use of computational fluid dynamics method and dynamic simulation, the thesis studies the effects of jet flow on launch process of vehicular container-type missile.

    结合流场计算和发射动力学仿真,研究某型车载发射系统中燃气流对发射过程的影响。

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  • In order to intensify the collision among the inhalable particles, a gas-solid jet flow was introduced into the agglomeration chamber to generate a local turbulent flow field.

    团聚室中引入气固射流,使团聚室内形成局部湍流,强化颗粒间的碰撞。

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  • Through the numerical simulation, the distribution of those parameters such as speed, pressure of the free jet and impinging jet flow is obtained, also the position of shocks.

    通过数值计算,得到了喷嘴出口自由射流与冲击射流情况下的流体速度、压力等参数分布情况,及这两种流场中的激波位置。

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  • If enlarge the room size in the direction of the jet flow direction, the ability of cold jet attaching, diffusing and rolling will drop, which leads the comfort level dropped.

    当房间尺寸沿着射流方向加大,冷风射流卷吸、扩散能力下降,造成了室内温度场、速度场分布不均,人体舒适性下降。

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  • Although the resistance force increase of series nozzles makes the average energy of jet flow decreased but it lets the instantaneous energy modulated to impel more fluid resonances.

    虽然串联喷嘴阻力损失的增加,使射流平均能量有所降低,但射流的瞬时能量得到了调制,激励出更大的流体振荡。

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  • It has been found that at the jet flow cross-section near the impingement surface accompanied by the appearance of two counter-rotating vortex pairs there emerge two eccentric peak values.

    结果发现在冲击面附近的射流横截面上,伴随着两个反向旋转涡对的出现,形成了主流速度的两个偏心峰值。

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  • In order to explore the effect of ambient pressure on jet flow field in deep well and ultra-deep well, a physical model for flow field of confined water jet at bottom hole was established.

    考虑到深井、超深井中井底围压对射流流场有一定的影响,建立了井底受限射流流场的物理模型。

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  • In order to explore the effect of ambient pressure on jet flow field in deep well and ultra-deep well, a physical model for flow field of confined water jet at bottom hole was established.

    考虑到深井、超深井中井底围压对射流流场有一定的影响,建立了井底受限射流流场的物理模型。

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