全合一探头用于探索 toroidal 等离子体中自组织的双流体平衡
H Himura1, A F Almagri2, J S Sarff2
1Department of Electronics, Kyoto Institute of Technology, Matsugasaki, Sakyo Ward, Kyoto 606-8585, Japan.
The Review of scientific instruments
|August 19, 2024
概括
一个全新的全合一探测器同时测量了融合等离子体中的一般化欧姆定律组件. 该工具通过提供关键的3D离子速度数据,有助于验证等离子物理理论.
科学领域:
- 等离子体物理学的物理学
- 核聚变能源研究研究
- 诊断仪器仪器仪表 诊断仪器仪表
背景情况:
- 了解等离子体的行为对于融合能源的发展至关重要.
- 精确测量等离子体参数对于验证理论模型至关重要.
- 现有的探测器往往只能测量有限的等离子体行为组成部分.
研究的目的:
- 开发一个集成的探测器,同时测量所有一般化的欧姆定律组件.
- 为了使形装置中等离子体外围的综合性表征.
- 为了促进两流体等离子体平衡的经验验证.
主要方法:
- 使用化气的多面体马赫探针的开发.
- 准确钻探聚合器通道孔口,以特定的排列,角度和深度.
- 集成一个中央马赫探头用于三维的离子速度场评估.
主要成果:
- 成功开发了一款用于同时测量多元组件等离子体的全合一探头.
- 在RELAX和麦迪逊对称TORUS机器的初始测试证实了探测器的功能.
- 观察到一个八面体形状,验证了探测器的设计.
结论:
- 开发的探测器有效地同时测量了关键的等离子体参数.
- 预计该探测器将大大推进等离子体物理理论的经验验证.
- 这项创新为核聚变研究提供了一个强大的新诊断工具.
相关概念视频
Torque On A Current Loop In A Magnetic Field
The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between the magnets with a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate, thus converting electrical energy to mechanical energy.
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle
Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.
Steady, Laminar Flow Between Parallel Plates
Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.
Couette Flow
Couette flow represents the flow of fluid between two parallel plates, with one plate fixed and the other moving with a constant velocity. This configuration allows for a simplified analysis using the Navier-Stokes equations, which govern fluid motion under conditions of viscosity and incompressibility. For Couette flow, the assumptions include a steady, laminar, incompressible flow with a zero-pressure gradient in the flow direction. This flow type is beneficial for understanding shear-driven...
Steady, Laminar Flow in Circular Tubes
Hagen-Poiseuille flow describes a viscous fluid's steady, incompressible flow through a cylindrical tube with a constant radius R. This flow profile is often applied to understand fluid transport in narrow channels, such as capillaries. It serves as a foundational example of laminar flow. In this model, cylindrical coordinates (r,θ,z) are used to describe the radial (r), angular (θ), and axial (z) dimensions within the tube. For Hagen-Poiseuille flow, the velocity profile is purely axial,...


