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Higher Order Magnetic Vector Potential: Axial Flux Motor
Axial flux motors have, over recent years, become increasingly more popular for aerospace and automotive applications. One of the main advantages of axial flux motors is their high power density, which allows for high efficiency in compact designs.

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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
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- 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
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  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
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- 电磁
  以下教程介绍的功能用于求解涉及到电磁场的问题。
  - 电阻加热：家用熔断器
    本教程演示 Simcenter STAR-CCM+ 中提供的“电阻加热”模型的一些功能。
  - 磁矢势：轴向磁通电机
    本教程介绍了如何使用有限元磁矢势模型求解轴向磁通电机的磁铁产生的磁通量。
  - 磁流体动力：励磁线圈引发的搅动
    在此教程中，将模拟励磁线圈诱导的熔化金属的电磁搅动。
  - 空气间隙网格重构：电子车速里程表
    电机模拟要求不同组件之间的交界面处有共形网格。空气间隙网格重构是一种网格化方法，可用于在相对运动的两个区域之间生成和保持共形网格。
  - Higher Order Magnetic Vector Potential: Axial Flux Motor
    Axial flux motors have, over recent years, become increasingly more popular for aerospace and automotive applications. One of the main advantages of axial flux motors is their high power density, which allows for high efficiency in compact designs.
    - Prerequisites
      To complete this tutorial, you require a double precision version of Simcenter STAR-CCM+. Also, the instructions in this tutorial assume that you are already familiar with certain techniques in Simcenter STAR-CCM+.
    - Loading the Initial Simulation
      For this tutorial, you are provided with a simulation file that contains predefined objects.
    - Defining the Fluid Regions
      To define the air domain and its motion, you require four additional regions—two regions for the rotating air domain (one for the air gap and one for the air surrounding the rotor) and two regions for the stationary air domain (one for the air gap and one for the air surrounding the stator).
    - Defining the Fluid Continuum and Specifying the Element Order
      To model the air domain, you require a single physics continuum. The physics continuum contains the Airgap Remeshing model (to ensure a conformal mesh is maintained between the stationary and rotating portions of the air domain) and the Finite Element Magnetic Vector Potential.
    - Generating the Mesh
      The starting simulation contains predefined operations for preparing and meshing the geometry. These operations include generating contacts between the parts, rotating the rotor air gap into its starting position, and generating a tetrahedral volume mesh for all parts.
    - Defining the Interfaces
      The starting simulation includes predefined interfaces between the solid regions. For the newly created fluid regions, you require additional interfaces. Each interface has either an in-place, periodic, or repeating topology.
    - Creating the Reports
      To assess the solution, you create three plots to record the magnetic flux linkage, magnetic torque, and ohmic heat power produced by the various components of the axial flux motor. To see how the magnetic torque and ohmic heat varies as the rotor moves, you set up a report that calculates the position of the rotor.
    - Visualizing the Magnetic Flux Density
      To visualize the magnetic flux density, you set up a scalar scene using the Magnetic Flux Density field function. This magnetic flux density can then be saved to a simulation history file in order to animate the whole solution.
    - Running the Simulation
      Before running the simulation you define the initial current as well as the time-step and maximum physical time in terms of the rotation rate. Also to reduce the simulation time, you apply a minimum limit to the magnetic vector potential residual using a monitor criterion.
  - Electric Circuits: Full-Wave Rectifier
    In power electronics, a full-wave rectifier provides rectification from an AC (Alternating Current) wave to a DC supply. Simcenter STAR-CCM+ provides simulation capabilities that allow you to investigate the effect of circuit component choices on the electromagnetic performance of such devices.
- 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
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- 设计探索
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- 与 CAE 程序耦合
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- 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。

Higher Order Magnetic Vector Potential: Axial Flux Motor

Axial flux motors have, over recent years, become increasingly more popular for aerospace and automotive applications. One of the main advantages of axial flux motors is their high power density, which allows for high efficiency in compact designs.

In this simulation, you model a quarter of an axial flux motor. The full machine consists of a central stator with two rotors on either side. Five magnets are attached to the rotor and seven coils are attached by stator teeth to the stator. The magnets and coils are separated by an air gap. The interaction between the magnets (positioned on the rotor) and the coils (positioned on the stator) produces torque, and therefore, mechanical rotation.

For the magnetic vector potential calculation, this tutorial uses the Finite Element Magnetic Vector Potential model in all physics continua. To increase accuracy in sensitive areas, such as the air gap, the magnets, and the stator teeth, you use 2^nd order finite elements.