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液体混合过程分析测试系统
液体混合过程分析测试系统

液体混合过程分析测试系统

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FluidMaster

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北京欧兰科技发展有限公司
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  • 第17年
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FluidMaster is a complete laser imaging system family for the quantitative visualization of thermal flows and mixing processes in fluids. Instantaneous concentration and temperature fields are measured with high spatial and temporal resolution.

成像技术
LIF, Raman, Rayleigh

应用
investigation of fluid mixing, thermal flows and flow structures, flow visualization in wind tunnels and turbomachinery applications, air film cooling, hydrodynamics ... for further information see Applications in Fluid Mechanics

测量信息

  • quantitative visualisation of concentration and temperature fields in fluids

  • pH-imaging and degree of reactive mixing in liquids

  • gas density measurements in thermal flows

系统性能

  • integrated turnkey laser imaging systems based on application matched best selection of laser and camera

  • complete hardware control using DaVis software

  • accurate hardware and signal calibration

  • most effective LIF excitation techniques

  • Rayleigh thermometry package for thermal gas flows

  • oxygen (O2)-LIF imaging module

特色

  • 3D-成像装置

  • 时间分辨成像,数字电影记录

相关方案

综合其他能源/新能源
  • 液体流体中流速检测方案(粒子图像测速)
    Two-phase annular flow is commonly used in both commercial and industrial heat transfer; however, we do not yet possess a thorough understanding of the nature of the fluid. Most analytical annular two-phase models are based on a relationship between the liquid film thickness, liquid film mass flux, and the axial pressure gradient or interfacial shear stress. The film thickness calculated from these models can then be utilized to determine the heat transfer coefficient of the flow. Although they are specific to certain flow regimes and fluids, empirical models remain more accurate than these analytical models. The key to understanding these flows lies with the liquid film. Therefore, to better understand the pressure drop and heat transfer of annular two-phase flow, this study involves the development of local, liquid velocity measurement techniques and their application to horizontal, wavy-annular two-phase flow. Two techniques, Bubble Streak Tracking (BST) and Thin Film Particle Image Velocimetry (TFPIV), have been developed in this study. Utilizing naturally occurring bubbles within the liquid film, the BST technique determines the liquid velocity by measuring reflected light streaks from the bubbles. A three-colored LED array creates directionally unambiguous streaks, while a strobe illuminates interfacial features that affect the liquid velocity. The TFPIV technique applies a typical micro-PIV system to a macroscopic flow with the addition of a non-trivial image processing algorithm. This algorithm successfully overcomes the image noise that occurs when applying PIV to a two-phase, thin film. Although difficulties arise when processing the BST data, the results of the BST and TFPIV methods are comparable, making BST an economical alternative to TFPIV for calculating liquid film velocities.

    其他 2008-06-17

  • 多相流,气泡流中速度矢量场检测方案(粒子图像测速)
    This dissertation presents a series of laboratory experiments to study flow and mixing properties of multiphase plumes. The particle image velocimetry (PIV) and laserinduced fluorescence (LIF) techniques are developed to measure two-dimensional velocity and concentration fields of multiphase plumes. The developed measurement techniques are applied to bubble plumes in different ambient conditions.

    其他 2013-02-13

  • 双射流混合流中速度场，温度场检测方案(粒子图像测速)
    采用LaVision的sCMOS相机构成的PIV和PLIF测量系统，对双射流混合流进行了流体速度场和双色PLIF温度场测量研究。

    能源/新能源 2019-12-27

  • 多相流中浓度场，速度场，形变应变场检测方案(粒子图像测速)
    采用LaVision的结构化平面激光照明成像（SLIPI)技术，应用于多相流的激光诱导荧光测量系统中，有效地消除了背景反射的影响。可以准确有效地辨识多相流对象中的界面。

    其他 2019-12-02

  • 液体流体中流速检测方案(粒子图像测速)
    Two-phase annular flow is commonly used in both commercial and industrial heat transfer; however, we do not yet possess a thorough understanding of the nature of the fluid. Most analytical annular two-phase models are based on a relationship between the liquid film thickness, liquid film mass flux, and the axial pressure gradient or interfacial shear stress. The film thickness calculated from these models can then be utilized to determine the heat transfer coefficient of the flow. Although they are specific to certain flow regimes and fluids, empirical models remain more accurate than these analytical models. The key to understanding these flows lies with the liquid film. Therefore, to better understand the pressure drop and heat transfer of annular two-phase flow, this study involves the development of local, liquid velocity measurement techniques and their application to horizontal, wavy-annular two-phase flow. Two techniques, Bubble Streak Tracking (BST) and Thin Film Particle Image Velocimetry (TFPIV), have been developed in this study. Utilizing naturally occurring bubbles within the liquid film, the BST technique determines the liquid velocity by measuring reflected light streaks from the bubbles. A three-colored LED array creates directionally unambiguous streaks, while a strobe illuminates interfacial features that affect the liquid velocity. The TFPIV technique applies a typical micro-PIV system to a macroscopic flow with the addition of a non-trivial image processing algorithm. This algorithm successfully overcomes the image noise that occurs when applying PIV to a two-phase, thin film. Although difficulties arise when processing the BST data, the results of the BST and TFPIV methods are comparable, making BST an economical alternative to TFPIV for calculating liquid film velocities.

    其他 2008-06-17

  • 多相流,气泡流中速度矢量场检测方案(粒子图像测速)
    This dissertation presents a series of laboratory experiments to study flow and mixing properties of multiphase plumes. The particle image velocimetry (PIV) and laserinduced fluorescence (LIF) techniques are developed to measure two-dimensional velocity and concentration fields of multiphase plumes. The developed measurement techniques are applied to bubble plumes in different ambient conditions.

    其他 2013-02-13

  • 多相流中浓度场，速度场，形变应变场检测方案(粒子图像测速)
    采用LaVision的结构化平面激光照明成像（SLIPI)技术，应用于多相流的激光诱导荧光测量系统中，有效地消除了背景反射的影响。可以准确有效地辨识多相流对象中的界面。

    其他 2019-12-02

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