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教程按步骤介绍了 Simcenter STAR-CCM+ 针对各种应用的使用方法，并提供特定应用的设置、初始化和求解流程步骤。大部分案例都提供了可下载的宏和模拟文件。
运动
本节教程介绍了在模拟涉及移动几何和网格、动态流体相互作用以及刚体运动的问题时可以使用的各种 STAR-CCM+ 功能：
DFBI and AMR: Boat In Parameterized Waves
In Dynamic Fluid-Body Interaction (DFBI) simulations, you can use Adaptive Mesh Refinement (AMR) to dynamically refine the mesh around a moving 6-DOF body based on the computed flow solution.

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教程
教程按步骤介绍了 Simcenter STAR-CCM+ 针对各种应用的使用方法，并提供特定应用的设置、初始化和求解流程步骤。大部分案例都提供了可下载的宏和模拟文件。
- 使用教程的宏和文件
  支持中心网站提供各种教程的宏、输入文件和最后模拟文件的可选下载包。这些宏和最终模拟文件是书面教程的辅助，因此您可以根据下载文件或使用宏构建并运行的模拟来检查最终结果。
- 简介
  欢迎使用 Simcenter STAR-CCM+ 入门教程。在此教程中，您可以探究重要的概念和工作流程。在学习其他资料之前，应先完成此教程。
- 基础教程
  基础教程以一系列简短的教程，介绍了 Simcenter STAR-CCM+ 的主要功能。
- 几何
  本节教程介绍了可创建和处理零部件与 3D-CAD 的多种 Simcenter STAR-CCM+ 功能。
- 网格
  本节教程介绍了用于构建 CFD 网格的各种 STAR-CCM+ 功能。
- 不可压缩流
  本节教程介绍了用于不可压缩流体流动以及孔隙率和求解录制的多种 Simcenter STAR-CCM+ 功能
- 可压缩流
  本节教程介绍了用于可压缩流体流以及谐波平衡的各种 Simcenter STAR-CCM+ 功能。
- 热传递和辐射
  本节教程介绍了适用于热传递、辐射和热舒适性的各种Simcenter STAR-CCM+ 功能。
- 多相流体
  本节教程介绍了用于模拟多相流体问题的多种 Simcenter STAR-CCM+ 功能
- 离散元方法
  本节教程介绍了用于模拟离散元方法问题的多种 Simcenter STAR-CCM+ 功能
- 运动
  本节教程介绍了在模拟涉及移动几何和网格、动态流体相互作用以及刚体运动的问题时可以使用的各种 STAR-CCM+ 功能：
  - 移动参考系：旋转风扇
    本教程介绍设置和运行旋转径向风扇分析所需的步骤。教程使用移动参考系模型，这是一种稳态方法，其中包括两个或多个相对静止或移动的参考系。
  - 刚体运动：旋转风扇
    本教程为与“移动参考坐标系：旋转风扇”教程中相同的径向风扇问题构建模型。但本教程不使用稳态移动参考坐标系模型，而是使用具有实际网格旋转的瞬态刚体运动模型来求解问题。
  - DFBI：具有重叠网格的救生船
    本教程演示如何使用具有自由表面流体的重叠网格功能和 DFBI 对落入水中的救生艇的运动构建模型。Simcenter STAR-CCM+ 自动进行方格重叠过程。
  - DFBI and AMR: Boat In Parameterized Waves
    In Dynamic Fluid-Body Interaction (DFBI) simulations, you can use Adaptive Mesh Refinement (AMR) to dynamically refine the mesh around a moving 6-DOF body based on the computed flow solution.
    - Prerequisites
      The instructions in this tutorial assume that you are already familiar with certain techniques in Simcenter STAR-CCM+.
    - Loading the Initial Simulation
      In this tutorial, you are provided with a starting simulation file which includes predefined parameters, and regions.
    - Generating the Mesh
      For the main fluid domain, you generate an anisotropic trimmed cell mesh with refinement around the sea level. With the dimensions of the refinement zone are parametrized with respect to the wave amplitude.
    - 选择物理模型
      此模拟使用流体体积 (VOF) 模型对同一连续体中的空气和水建模。由于流体处于不同的相中，因此激活欧拉多相模型，并使用重力模型以顾及重力对水、空气和船体的影响。由于波传播和流体与船体的相互作用，流动为湍流。要在求解器运行时以迭代方式细化网格，则包含“自适应网格细化”和“自适应时间步”模型。
    - Setting Boundary Conditions
      You set the initial conditions for the Pressure, Velocity, and Volume Fraction as well as the boundary conditions for the regions.
    - Defining the Motion of the Hull as a 6-DOF Body
      The hull is a rigid body that moves at a constant velocity of 8 knots. In addition to the prescribed motion, the hull moves in response to the force exerted by the surrounding fluid.
    - Defining the Motion of the Fluid Domain
      When defining the 6-DOF body, you applied the DFBI motion (both prescribed and induced by waves) to the fluid region near the hull. To make sure that the hull region remains within the background fluid domain in the boat advancing direction, you set the main fluid domain to follow the translational motion of the hull along the X axis.
    - Visualizing the 6-DOF Body Motion, and Applied Force
      To visualize and monitor the motion and orientation of the 6-DOF body, as well as the fluid force acting on the body, you create DFBI reports as well as the corresponding monitors and plots.
    - Recording the Solution
      For further post-processing, you can create a solution history file that records the absolute pressure, pressure, and volume fraction of water at the hull fluid boundary, and on an isosurface that represents the surface of wave propagation.
    - Visualizing Wave Forcing and Wave Propagation
      To visualize wave forcing the propagation of the waves in the domain, and the pressure they apply to the hull, you create two scalar scenes.
    - Specifying Solver Settings
      For wave simulations, you are advised to use a 2nd-order implicit unsteady solver. For the purpose of this tutorial, a time-step of 0.01 s is sufficient. Real world cases typically require a much smaller time-step.
    - Running the Simulation and Visualizing the Results
      To make sure the waves come into contact with the boat hull and the simulation converges, you specify a large physical time, relative to the time-step. You can then initialize and run the simulation.
    - Running the Solution with a Diagonal Wave.
      To create a diagonal wave, you alter the AdvancingDirection parameter, which controls the direction of the wave.
    - Animating the Boat Movement
      To visualize the movement of the boat during the simulation, you can create an animation of the IsoSurfaceWaves scalar scene.
  - 海水阻力预测：带有方向舵的 KCS 船体
    本教程演示为船舶应用设置阻力预测模拟的工作流程。
  - 移动参考系：开放水域中的船用螺旋桨
    本教程演示为船用螺旋桨设置开放水域模拟的工作流程。
  - 体积力螺旋桨法：自航
    船舶工程的挑战之一是，预测在旋转螺旋桨产生推力的作用下，船体穿水移动的速度。Simcenter STAR-CCM+ 提供可以预测此速度的方法学。
  - 叶片单元法：直升机转子-机身交互作用
    直升机的旋转主转子叶片产生复杂流场，对机身产生周期性气动负载。这些气动负载会使客舱受到噪声和振动的影响。这些气动交互作用影响直升机的性能，并可能导致结构损坏。Simcenter STAR-CCM+ 提供模拟转子叶片生成气流的方法，并且不需要单独对叶片进行网格化。利用此方法，可以预测直升机周围的复杂流场，并将机身与转子流场的交互作用考虑在内。
  - 变形：带有边界运动的圆柱体
    Simcenter STAR-CCM+ 包含一个变形运动模型，使您可使用多种方法定义边界表面上的运动。
  - 重叠网格小间隙建模：凸轮鼓风机
    旋转凸轮鼓风机是一种无阀门容积式装置。流体通过安装在平行轴上的两个对转的凸轮泵出。流体通过泵吸入侧的扩展容量进入。由于凸轮不断旋转，流体在凸轮和泵壳之间被压缩，从而传输到排出端。
  - 轨迹运动：在固定滑轨上对底盘进行浸漆
    浸漆指在浸罐中对组件进行涂漆的过程。Simcenter STAR-CCM+ 可用于对此过程进行模拟，从而研究不同轨迹和组件速度的影响。
  - 常规网格重构：具有小间隙的摆线泵
    摆线泵是具有与齿数相关的不同旋转速度的内转子和外转子的装置。各转子之间体积的动态变化促使液体从入口输送到出口。
- 反应流体
  本节教程介绍用于模拟反应流体（例如燃烧）的多种 Simcenter STAR-CCM+ 功能。
- 固体应力
  本节教程介绍了用于计算固体区域的变形、应变和应力的多种 Simcenter STAR-CCM+ 功能。同时显示此类计算如何与流体结构相互作用的分析内的流体行为耦合。
- 气动声学
  本节教程介绍了 Simcenter STAR-CCM+ 中用于求解气动声学模拟的各种功能。
- 电磁
  以下教程介绍的功能用于求解涉及到电磁场的问题。
- 电化学
  以下教程演示了电流诱导的化学反应。
- 电池
  本节教程介绍用于设置电池模型的多种 Simcenter STAR-CCM+ 功能：
- 自动化
  本节教程介绍了多种 Simcenter STAR-CCM+ 自动化和宏功能。
- 设计探索
  本系列教程介绍了用于在Design Manager中运行设计探索研究的各种功能。
- 与 CAE 程序耦合
  本节教程介绍用于与 CAE 程序耦合的多种 Simcenter STAR-CCM+ 功能：
- 分析方法
  本节教程介绍了 Simcenter STAR-CCM+ 中用于分析和可视化模拟数据的各种功能。
- Simcenter STAR-CCM+ In-cylinder
  本套教程介绍了使用专用加载项 Simcenter STAR-CCM+ In-cylinder 在 Simcenter STAR-CCM+ 中模拟内燃机的功能。

DFBI and AMR: Boat In Parameterized Waves

In Dynamic Fluid-Body Interaction (DFBI) simulations, you can use Adaptive Mesh Refinement (AMR) to dynamically refine the mesh around a moving 6-DOF body based on the computed flow solution.

In this tutorial, you simulate the motion of a boat hull facing oncoming waves. The motion is a combination of a prescribed forward motion through boat propulsion and the motion induced by the oncoming waves.

You model the boat hull as a 6-DOF body and the surrounding fluid as a fifth-order wave. As you are mainly interested in the solution in the vicinity of the hull, you reduce the domain size and the computation time using wave forcing. This solution technique forces the wave solution to a simplified solution at the outer boundaries of the fluid domain.

To account for the large relative motion between the boat and the sea, you use the overset mesh technique, where the boat is the overset region and the sea is the background region. To reduce the overall cell count, you use Adaptive Mesh Refinement (AMR). You start with a coarse mesh for the background region, while the mesh in the overset boat region is sufficiently fine. During the simulation, AMR refines the background mesh dynamically near the overset interface. This ensures a similar cell size on both sides of the moving overset interface for a precise overset interpolation. Due to the fine mesh in the boat region, it is not necessary for AMR to further refine the mesh in this region.

In addition to the overset mesh technique, a VOF wave also requires a large cell count for the sharp free surface resolution. AMR recognizes the free surface and dynamically refines the cells across the free surface during the simulation run.