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相关概念视频

Steady, Laminar Flow in Circular Tubes01:23

Steady, Laminar Flow in Circular Tubes

253
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...
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Uniform Depth Channel Flow01:27

Uniform Depth Channel Flow

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Uniform depth channel flow keeps fluid depth consistent along channels such as irrigation canals. In natural channels, such as rivers, approximate uniform flow is often assumed. This condition occurs when the channel’s bottom slope matches the energy slope, balancing potential energy lost from gravity with head loss due to shear stress. This balance prevents depth changes along the channel length, resulting in a steady, uniform flow.Uniform flow in open channels with a constant cross-section...
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Biocompatible Ink Optimization Enables Functional Volumetric Bioprinting With Xolography.

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相关实验视频

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Frugal Imaging Technique of Capillary Flow Through Three-Dimensional Polymeric Printing Powders
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连续体积测量3D打印:在流动中进行全息画.

Lucas Stüwe1, Matthias Geiger1, Franz Röllgen1

  • 1Chemical Process Engineering, RWTH Aachen University, Forckenbeckstr. 51, 52074, Aachen, Germany.

Advanced materials (Deerfield Beach, Fla.)
|August 11, 2023
PubMed
概括

连续体积3D打印采用xolography克服了速度分辨率的权衡. 这种新的方法使高分辨率,高通量增材制造能够使用流动光聚合物.

关键词:
连续打印连续打印流量配置的塑造 流量配置的塑造大量的3D打印.一个名为Xolography的图像.

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科学领域:

  • 添加剂制造 添加剂制造 添加剂制造
  • 聚合物科学 聚合物科学
  • 光学工程是指光学工程.

背景情况:

  • 已建立的3D打印方法面临着由于层层的过程而导致分辨率速度的权衡.
  • 卷度3D打印通过同时聚合整个卷来提供高分辨率和速度.
  • 影印是一种体积3D打印技术,需要先进的连续生产.

研究的目的:

  • 开发基于色谱的连续体积3D打印工艺.
  • 为了提高生产率,并保持基于光的增材制造中的高分辨率.
  • 为了解决现有的光聚合技术的局限性.

主要方法:

  • 在一个定制的流细胞内,在一个连续流动的树脂中实现了双色光聚合.
  • 利用模拟来优化流量配置,平整打印面积和增加墙壁速度.
  • 通过激光板诱导的固化减少了不必要的聚合物.

主要成果:

  • 成功地连续打印各种物体,具有高保真度和光滑表面.
  • 在开发的流量电池中实现了高达1.75mm3s-1的生产速度.
  • 证明了平行对象打印用于可扩展的制造.

结论:

  • 流动式连续色谱技术代表了体积3D打印技术的重大进步.
  • 这种方法有可能解决生产速度和分辨率之间的长期权衡问题.
  • 为高通量,高分辨率的增材制造应用开辟了新的途径.