流化床反应器在化工、石油、冶金等行业有着广泛应用，反应器中常常存着各种各样的内构件，如布风板、筛板、导流挡板等，这些结构一般对气固流化床的流化状态有着显著影响。传统CFD技术对于薄片结构往往在网格处理时存在一定难度，且会造成整体计算网格数量的增多，极大地影响模拟仿真效率。

      基于CPFD(Computational Particle Fluid Dynamics)技术开发的Barracuda是一款致力于工业级流态化及化学反应模拟的商业软件包，以其快速的仿真建模方法、高效稳定的多相流耦合求解器、便捷的化学反应建模方法、工业级的颗粒模拟数量等优点在水泥行业有着很好地应用。相比于传统CFD软件，Barracuda能够在更短的时间内实现工业设备的模拟分析，满足工业仿真需求。

1、Tecplot for Barracuda - Calculating Spatial Averages on Slices：This video shows how to calculate spatial averages on a slice using Tecplot for Barracuda. In this example, we use CPFD's Wednesday Gasifier training problem (which includes thermal and chemistry calculations), and gas velocity magnitude is the field of interest for spatial averaging. The following concepts are covered in the video: *Creating a slice *Coloring a slice by a specific variable (velocity magnitude in this example) *Extracting data from a slice over all solution times *Using the "Integrate" tool to calculate a spatial average for each extracted zone *Viewing the calculated spatial averages in tabular and plot form See this Tecplot Knowledge Base post for further discussion of how the calculated average is weighted: Weighted versus Arithmetic Averages and Tecplot 。

2、Tecplot for Barracuda - Calculating Average Values Over a Custom Time Period：This video shows how to calculate average values over a custom time period using PyTecplot. The Kuipers training problem is used, and a few scripts from the Tecplot handyscripts Github repo  were used as starting points for the custom time-average calculations performed in the video. Download the customized scripts using the link at the bottom of this post  Concepts covered in this video include: * Understanding the built-in cumulative time average data calculated by Virtual Reactor * Using custom PyTecplot scrits to perform time-averaging calculations over multiple user-specified time periods * Enabling the "Accept connections" option so that PyTecplot scripts can connect to a running instance Tecplot for Barracuda * Displaying the custom time average values calculated by the PyTecplot scripts. 

3、Tecplot for Barracuda - Calculating Average Values Over a Custom Time Period：This video shows how to calculate average values over a custom time period using PyTecplot. The Kuipers training problem is used, and a few scripts from the Tecplot handyscripts Github repo were used as starting points for the custom time-average calculations performed in the video. Download the customized scripts using the link at the bottom of this post. Concepts covered in this video include: * Understanding the built-in cumulative time average data calculated by Virtual Reactor * Using custom PyTecplot scrits to perform time-averaging calculations over multiple user-specified time periods * Enabling the "Accept connections" option so that PyTecplot scripts can connect to a running instance Tecplot for Barracuda * Displaying the custom time average values calculated by the PyTecplot scripts。

4、Tecplot for Barracuda - Using Multiple Frames to Create a Grid of xy Plots：This video shows how to use multiple frames to create a grid of xy plots in Tecplot for Barracuda. In this example, we are using the data from our single-cell chemistry training problem. Concepts covered in this video: * Using Ctrl+C and Ctrl+V to create multiple frames * Tiling frames into a grid * Creating a plot with 2 Y-axes * Adding symbols to a line and adjusting the symbols If you’d like more information about Barracuda Virtual Reactor, please contact CPFD Software. For current Barracuda users who’d like more tutorials on post-processing their Virtual Reactor simulation results。

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