Structures of the skin friction lines (SFL) appearing on a prolate spheroid in laminar and turbulent flows were investigated and compared by using an improved oil-flow visualization technique.
用改进的油流显示法研究和对比了层流和湍流状态下绕椭球流动的表面摩擦力线结构。
This could be done with surfaces that change shape, or by using a system of holes and slots that can be opened and closed as appropriate to create suction that maintains laminar flow.
这将通过改变机翼表面形状,或采用能适当的开启和关闭孔、缝以吸住层流的系统来实现。
A theoretical Method of stability was provided for further theoretical and experimental research under laminar condition such as Cardivascular fluid dynamics, Biorheology, Simulation in vitro, etc.
为在层流条件下的血流动力学、流变学以及体外模拟等理论或实验研究提供了稳定性方面的理论依据。
The calculations of the laminar velocity of a fluid flowing along a flat plate as well as at the entrance of a circular pipe were given as examples to illustrate the correctness of this method.
以沿半无限平板和水平圆管进口区中层流速度分布计算为例,证明了计算方法是正确的。
Numerical analysis is made for the unsteady and steady, two-dimensional laminar natural convection in an enclosure caused simultaneously by the external heating and a local internal heat source.
本文描述由一个局部内热源和外部加热同时作用引起的封闭空腔内非稳态、二维、层流自然对流换热的数值分析结果。
Under the body-fitted coordinates, a study of three-dimensional laminar flow and heat exchange characteristics of staggered round tube bank fin is carried out through finite difference method.
在适体坐标系中采用有限差分法对错排圆管管片式换热芯子的三维层流流动及其换热特性进行了研究。
The model, which includes the effect of additional inertia forces by vacillation, describes a problem of unsteady three-dimension wavy laminar falling film absorption.
该模型充分考虑了由摇摆振动引起的附加惯性力的作用,属非稳态三维波动层流问题。
The ignition process of combustible gas stream by a heated plate in the laminar boundary layer was analytically considered and the limits of ignition were determined.
以此分析了炽热平板层流边界层内可燃气流的引燃,给出了描述引燃的着火临界条件。
Looking at that in the lab, it becomes a function of airfoil shape, and also of the flow control technologies you use to enhance the laminar flow with conformal trailing edge surfaces.
实验室的研究表明,它已经成了机翼的一项功能,也是通过适形机翼后缘表面来增强层流的流控制技术的功能。
An experimental study on the laminar boundary layer instability and transition was carried out in a flat-plate boundary layer by means of controllable heat pulsing introduced into the critical layer.
本文用可控热脉冲输入临界层的方法研究了平板层流边界层的稳定性与转捩。
Based on experiments of various biomass flash pyrolysis volatilization performed with a laminar entrained flow reactor, the model was checked by experimental data acquired with ash tracer method.
通过在层流炉上进行的多种生物质闪速热解挥发实验,并利用灰分示踪法计算得到了挥发百分比实验数据。
When the Reynolds number for Bingham fluid is larger than a certain value, the flow will transfer from the laminar state to the turbulent state as Newtonian flow does.
和牛顿流体一样,宾汉流体的雷诺数超过一定值后,其流动将从层流向紊流过渡。
Like in an infinite flow, we find that laminar boundary layer, transition region and turbulent boundary layer also exist along a flat plate in open channel flow boundary layers.
试验研究发现明流光滑平板边界层中,与无限边界绕流平板边界层一样,沿平板有层流边界层,转捩区和紊流边界层三部分。
Both the metal bond coat and the ceramic coat display a laminar structure. The ceramic coat shows less density and there exists some cracks frequently, whereas the bond coat denser and no cracks.
金属粘结层与陶瓷涂层均呈层状结构,陶瓷涂层致密性较差、易出现微裂纹,金属粘结层相对致密、一般无裂纹。
This paper presents a numerical technique for computing the steady viscous laminar flow in the channel with arbitrary shape, by use of the method of streamline-iteration.
本文提出一种利用流线迭代法来计算任意形状流道中定常粘性层流流动的数值方法。
Darcy's law has achieved vast application as a basic law in problems of fluid flow through porous media. It, however, only holds for cases of linear, laminar flow.
达西定律作为渗流力学的一项基本规律,曾得到广泛的应用,但它只适用于线性的层流情况。
For the three-zone model, a set of coupled correlations has been derived to describe the effect of pressure and temperature on the laminar burning velocity and the laminar flame thickness.
对于三区模型,加上相关的衍生了一套描述的压力和温度的层流燃烧速度和火焰层厚度的影响。
So a mathematical model is built by introducing two parameters to link microcosm and macroscale while laminar flow model is still the reaction model of microcosmic reaction.
故本文引入两个参数,建立了一个可行的计算数学模型,将层状扩散模型这个微观过程与宏观反应联系在一起。
The invention also provides for an apparatus, which is a laminar scrubber, comprising solvent covered surfaces situated such that they can be exposed to air stream.
本发明还提供一种装置,其为层流洗涤器,所述层流洗涤器包括设置使其可暴露于空气流下的溶剂覆盖的表面。
It shows that the boundary layer induced behind a 2 ATM 2h2 + O2, mixture detonation wave may undergo a transition from laminar to turbulent and then turn out a turbulent boundary layer.
值得指出的是,2大气压下2h_2 + O_2气体爆轰波后诱导引起的附面层可能经历着从层流向湍流的转捩,而后成为湍流附面层。
The developed laminar shear model box lays a firm foundation for the success of the test and can also be adopted in other tests for seismic geotechnical problems.
试验结果表明,所设计的叠层剪切变形模型箱不仅为本次试验获得成功打下了坚实的基础,还可以应用于其他岩土地震问题的试验研究。
The numerical calculation results show that the favorable pressure gradients have apparent laminar flow control property, and the unfavorable pressure gradients have a strong unstable influence.
数值计算结果表明,顺压梯度有明显的延缓转捩作用,逆压梯度有较强的不稳定作用。
In the ice storage system the chiller is located upstream in series form, and the thermal storage system involves a vertical laminar flow heat storage tank of natural stratification.
武汉国际会展中心空调系统冷热源为蓄冷、蓄热方式 ,蓄冰系统采用主机位于上游的串联形式 ,蓄热设备为自然分层的垂直层流型蓄热槽。
Objective To investigate a clinical application and indication of the minimally invasive surgery through inter-laminar space for the treatment of lumbar disc herniation(LDH).
目的探讨经椎板间隙直视下微创手术治疗腰椎间盘突出症的临床价值和适应证。
This method has been used to calculate a methane air premixed laminar flame and the numerical results proved that this new method is an accurate and high efficient one.
并运用于对甲烷-空气的一维层流火焰计算,表明这种新方法易收敛,计算效率高。
Laminar screw fixation technique is rarely used in clinic, but the study of anatomy and biomechanics confirmed that this technique can be applied as a salvage technique in clinic.
经椎板螺钉固定技术临床应用不多,但通过解剖学和生物力学研究证实,该技术可成为临床上可行的补救技术。
Laminar screw fixation technique is rarely used in clinic, but the study of anatomy and biomechanics confirmed that this technique can be applied as a salvage technique in clinic.
经椎板螺钉固定技术临床应用不多,但通过解剖学和生物力学研究证实,该技术可成为临床上可行的补救技术。
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