unsteady wave

[ʌnˈstɛdi wev][ʌnˈstedi: weiv]

不稳定波

  • Reflection of unsteady blast wave computed by second order accurate muscl scheme

    一个二阶单调迎风格式及对 激波反射的计算

  • For high-speed sliding-barge dolphin unsteady movement and kinetic theory forecast problem in the wave because its kinetic differential coefficient equation is complicated furthermore comprises many presumptions and premises it meads to be calculated by a large-scale computer .

    针对高速滑行艇海豚 安定运动以及在 波浪中的运动理论预测问题,因其运动微分方程式繁杂而且有许多假设和前提,需要在大型计算机上计算。

  • Unsteady interaction of shock wave diffracting around a circular cylinder in air

    激波稳定性(Ⅰ)空气中平面激波同圆柱的 干涉

  • With the boundary condition of all pipes in a pipe network kept unchanged any unsteady now from arbitrarily initial condition in the network will approach its final steady state due to friction and waterhammer wave reflection .

    对于一个水力稳定的管网系统,当其各管道的边界条件维持不变时,由于摩阻及水锤 的反射 作用,管网内的任意 恒定 终将趋于其特殊情况&恒定 状态。

  • This paper presents a cell-centered finite volume scheme for numerical integration of Navier-Stokes equations for three-dimensional unsteady viscous compressible non-homentropic flow to simulate the micro-pressure wave produced by a high-speed train entering a tunnel with a transverse passage-way .

    采用三维粘性、等熵、可压缩、 流的Navier-Stokes方程,用有限体积法进行区域离散,对高速列车通过设置有横通道的隧道时所引起的出口微压 进行模拟。

  • Analytical solution for unsteady two-dimensional detonation wave with DSD method

    二维爆轰 DSD方法的 解析解

  • The aim of this article is to study the linear growth of the density wave in galaxies by means of numerically resolving unsteady two-dimensional hydrodynamic equation coupled with Poisson equation under the condition that the local asymptotic solution of linear density wave is given as initial value .

    本文以线性密度 局部渐近解为初值,求解二维 流体力学方程组和泊松方程,研究星系密度波的线性增长。

  • Application of unsteady wave pattern analysis

    波形分析的应用研究

  • A numerical study of the unsteady wave structure of supersonic jet flow

    超音速燃气射流 常波系的数值研究

  • Unsteady flow is the most common form in natural fluid movement . Flood routing in river 、 outflow from reservoir 、 lock filling or lock emptying 、 tidal wave 、 sea wave and so on . These are the typical unsteady flow model .

    恒定流是自然界中流体运动最为普遍的形式,河道中的洪水推进、水库泄流、船闸充排水以及潮 、海浪运动等等都是典型的非恒定流问题。

  • Furthermore one-dimensional unsteady flow at the average radius of the water wave pump was calculated and the problem for the radial equilibrium at the inlet and outlet of the water wave pump was also calculated and analyzed theoretically . 2 .

    并用特征线解法计算了 水波泵平均半径处一维 流动问题,对水波泵出入口的径向平衡问题也进行理论计算与分析。

  • A special type of unsteady motions which bear a resemblance to plane wave solutions of the linear theory of elasticity can be constructed .

    一种特殊类型的、和线性弹性理论中的平面 解有点相像的 稳态运动可以建立起来。

  • The simulation of three examples shows that the method has high-resolution when it is applied in unsteady and quasi-steady flows with the sharp wave in discontinuous problems and suitable to computation of the shallow water flows .

    对二个模型算例的数值模拟结果表明:该算法对拟 恒定流和 恒定流模拟都有较高的分辨率,具有处理间断问题的锐利 波形能力,适合浅水流动的数值模拟。

  • For the unsteady flow of pulse detonation thruster an implicit dual-time method was adopted to simulate the absorptive wave under different laser intensities with thermo-chemical nonequilibrium model .

    对脉冲爆震推力器的 流场采用热化学非平衡模型,以隐式双时间步进格式计算了不同光强下的激光支持吸收

  • Application of Unsteady Wave Pattern Analysis Method in Determination of Added Resistance of Ship in Waves

    波形分析法在波浪增阻问题中的应用研究

  • A numerical study of the unsteady wave structure in a stepped launcher tube

    阶梯型发射管内 常波系的数值研究

  • In this paper the evolution of the radiation field from frequency bifurcation to chaos and the temporal and frequency characteristics of the nonlinear unsteady states are investigated based on the threshold analysis of nonlinear instability for the radiation field in a traveling wave tube amplifier .

    行波管放大器中辐射场的非线性不稳定阈值分析为基础,对辐射场从频率分叉到混沌的演化过程和不同区域这些非线性 稳定态的时间特性和频率特性进行了研究。

  • The unsteady flow structure of waves and mechanism of the forming of shock wave in pressure wave refrigerator are investigated in the present paper .

    对压力波制冷机内 流动过程、波系结构、 激波形成机理等进行了探讨。

  • In this paper the velocity potential exited by wave-current on a cylinder is divided into three parts-the double model velocity potential the steady current exiting wave potential and the unsteady diffraction wave potential .

    本文将波流共同对圆柱作用的速度势分成合模势(无自由表面的绕流速度势)、流兴波势和 常波势三部分。

  • The Numerical Simulation for an Unsteady Shock Wave Sweeping Over Multiple Obstacles

    激波在多重矩形障碍物中 传播的数值模拟

  • On MacCormack scheme 's feature in computation of unsteady shock wave problem

    MacCormack格式在计算 激波时的特点

  • A set of analytical solution for the unsteady normal reflection of a planar strong explosion wave from a rigid wall is given with high accuracy .

    文中给出了 平面强爆炸 对固壁正反射问题的一组解析解,具有高的精确度。

  • When a harmonic wave propagates in one-dimensional unsteady flow the wave amplitude at any x-position will be related with Mach number M and (?)

    分析表明,当由简谐声源所发射的 声波在一维 稳定流中传播时,对于某一确定位置,其声压幅度除随时间周期变化外,还受到M和(?)

  • The chemical reaction model of 58 equations and three dimensional unsteady conversation equations are used to simulate the pressure wave induced by flame during the methane explosion .

    从三维 守恒方程出发,采用58步化学反应模型,对瓦斯爆炸过程中火焰与压力 的伴生关系进行了数值模拟。

  • Aero-Optics is a new subject in which the interaction between index-refraction field induced by steady unsteady or random fluid motion and electromagnetic wave propagation is investigated .

    气动光学是研究由稳态, 稳态或随机的气流运动引起的折射率场和电磁 传播之间相互作用的新兴学科。

  • Different reaches variation of stream hydraulic geometry and the unsteady movement of flood wave have direct impact on the sediment transport .

    不同的河段位置.河道的水力几何形态, 恒定的洪水 运动将直接影响到河道的输沙特性。

  • Calculation of the boundary layer growth behind an unsteady expansion wave in a tube

    膨胀 进入圆管后壁面附面层增长的计算

  • On unsteady flow in oscillatory tube of pressure wave refrigerator

    压力 冷机工作管开口端处的流动分析

  • Numerical simulation study of the unsteady viscous field of shock wave over a wedge

    激波绕尖劈障碍物 运动粘性流场的数值模拟研究