- 更多网络例句与无激波的相关的网络例句 [注:此内容来源于网络,仅供参考]
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With the system,one can observe the formation,deformation and breakup of an axisymmetric liquid ring.
这种新的实验设备是由垂直的无膜激波管和液体环发生器所组成,可以用来观察轴对称液体环的形成、变形和破碎过程。
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The discrete velocity ordinate method in the kinetic theory of gases is developed and applied to discretize the correspo
借助非定常时间分裂法和无波动无自由参数的NND耗散格式,建立直接求解微观分子速度分布函数的有限差分数值格式;研究并发展可用于离散速度坐标点选取和离散速度空间宏观取矩的高斯─埃尔米特无穷积分方法、等均间隔的牛顿─柯斯复合积分法、以勒让德多项式的根为积分结点的高斯─勒让德数值积分法,并应用于不同马赫数绕流模拟;通过对不同流域一维激波管问题、二维圆柱绕流问题和三维球体绕流的计算研究,并将计算结果与其他途径得到的研究结果诸如DSMC模拟值、N-S解及有关实验数据进行比较分析,创建了一套能有效模拟稀薄流到连续流不同流域气体流动问题简化的统一数值算法研究框架
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Based on this, a new WENO difference scheme which based on Dispersion-Relation-Preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics problems has been implemented and compared in order to test capability of wave capturing; In addition, WENO schemes generally do not converge at high order in the presence of contact discontinuity of Euler equations, so a conservative front tracking technique coupling WENO schemes and Level Set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy.
本文研究了高阶精度加权基本无振荡格式及其在双曲守恒律方程中的应用,在此基础上作了两个方面的工作:一是针对高频声波问题构造出一种基于保色散关系的WENO有限差分格式,并对计算气动声学问题的代表性算例进行了大量数值实验,比较了该格式捕捉波数的能力;另外,针对高阶WENO格式在处理Euler方程的接触间断时精度有所降低的问题,研究了利用界面追踪技术Level Set方法和高阶激波捕捉WENO格式相结合的一种守恒追踪方法,并且给出有代表性的密度滑移面问题的算例,得到一致高阶精度的数值模拟结果。
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To obtain a complete picture about shock formation in non-viscous flow, in the succeeding chapter we investigate the isothermal shocks in adiabatic flows. We find that in this case the shock solution still exists, but the structure and the properties of the solution are greatly different from above even qualitatively. In some region of the parameter space there only exists unstable shock solution and in some region of the parameter space there may exist two stable shock solutions.
为得到完整的无粘流体中激波形成的图象,在接下来的第四章,我们研究绝热流体中等温作为激波条件时的情况,发现此时激波解仍存在,但解的结构和性质甚至在定性上都与前两章有了显著的不同:某些参数空间只存在非稳定的激波解,某些参数空间则会同时出现两个稳定的激波解。
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In the paper,the transmission of designed roller oscillating tooth reduction gear adopts osci llating tooth gear drive without exception,one-stage reduction gear and two-stage reduction gear have joined through spline coupling band;The joining way of shock wave thellomble and oscillating tooth adopts the biserial bearing of without inner ring of needle bearing,and directly adopts bearing outer ring as shock wave thellomble;Center wheel of two-stage reduction gear and center wheel of two-stage reduction gear passes through taper thread,and center wheel is fixed;As soon as the flange of input end and center wheel of one-stage reduction gear,the flange of export end and center wheel of two-stage reduction gear makes monobloc structure.
本文预设的井下减速器的传动均采用活齿传动,一级减速器的输出轴和二级减速器的输入轴通过花键联轴套联接;激波环与活齿的毗连方式采用能蒙受较大载荷的无内圈双列滚针不锈钢管,且直接采用不锈钢管外圈作为激波环;一级减速器的中心轮和二级减速器的中心轮是通过锥螺纹毗连的,且中心轮固定;一级减速器的中心轮与输入端的法兰盘,二级减速器的中心轮与输出端的法兰盘均做成整体的结构。
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In the paper,the transmission of designed roller oscillating tooth reduction gear adopts oscillating tooth gear drive without exception,one-stage reduction gear and two-stage reduction gear have joined through spline coupling band;The joining way of shock wave thimble and oscillating tooth adopts the biserial bearing of without inner ring of needle bearing,and directly adopts bearing outer ring as shock wave thimble;Center wheel of two-stage reduction gear and center wheel of two-stage reduction gear passes through taper thread,and center wheel is fixed;As soon as the flange of input end and center wheel of one-stage reduction gear,the flange of export end and center wheel of two-stage reduction gear makes monobloc structure.
本文设计的井下减速器的传动均采用活齿传动,一级减速器的输出轴和二级减速器的输入轴通过花键联轴套联接;激波环与活齿的连接方式采用能承受较大载荷的无内圈双列滚针中国财经圈,中国财经圈,且直接采用进口中国财经圈外圈作为激波环;一级减速器的中心轮和二级减速器的中心轮是通过锥螺纹连接的,且中心轮固定;一级减速器的中心轮与输入端的法兰盘,二级减速器的中心轮与输出端的法兰盘均做成整体的结构。
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We investigate the linear stability of a shocked accretion flow onto a black hole with the following procedures: First, we study the stability in the inviscid isothermal limit.
我们按如下步骤研究了含激波的黑洞吸积流的线性稳定性问题:首先,我们研究无粘滞的等温吸积流。
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The quasi-perpendicular collisionless shock consists of foot, ramp and a series of overshoots and undershoots, after travelling back upstream for a short distance, the reflected protons gyrate back into the downstream where an temperature anisotropy is formed due to an anisotropy of velocity distribution, then excite Alfvén ion cyclotron waves and mirror waves that dissipate the kinetic energy into heat; At quasi-parallel collisionless shocks, the reflected protons can travel far upstream, and lead to the generation of ion beam instabilities which excite large-amplitude right-hand polarized ultralow-frequency resonant waves whose frequencies are are about〓 These waves are convected back downstream by solar wind and gradually merge to form the downstream state, in the meantime new waves are generated continuously in the upstream, this process where ULF waves are generated and merge into downstream state is cyclical.
准垂直无碰撞激波系由根部、斜坡区以及一系列的低冲和过插组成,被激波反射的质子向激波上游运动很短的距离就在回旋作用下再次向下游运动,和激波发生相互作用以后进入激波的下游,在激波的下游引起质子速度分布的各向异性,进而引起激波下游温度的各向异性,激发起Alfvén离子回旋波和镜波,将激波上游的动能耗散成激波下游的热能;在准平行无碰撞激波(θ〓=10°)情况下,这部分质子能向激波上游运动很大一段距离,并在激波的上游激发起束流不稳定性,引起大振幅的低频波动。
- 更多网络解释与无激波的相关的网络解释 [注:此内容来源于网络,仅供参考]
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unshipp:船上卸货/船客等下船/解下
unship /从船上卸/使下船/解下/被卸下/ | unshipp /船上卸货/船客等下船/解下/ | unshocked /无激波的/
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unshod:未穿靴的
unshocked 无激波的 | unshod 未穿靴的 | unshod 未钉铁蹄的
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unshod:未穿靴的/赤脚的/未钉铁蹄的
unshocked /无激波的/ | unshod /未穿靴的/赤脚的/未钉铁蹄的/ | unshorting /消除短路/
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unshocked:无激波的
unshock 无激波 | unshocked 无激波的 | unshockedplasma 未受冲击的等离子体
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unshocked:未受冲击的,无激波的,无振动的
未防护的,未屏蔽的,无防护的,不设屏蔽的 unshielded | 未受冲击的,无激波的,无振动的 unshocked | 清除短路 unshorting