LES of an internal ship air cavity

This dataset contains results from an LES of a simplified internal ship air cavity. It accompanies a publication that is soon to be submitted to a relevant journal. The contents are as follows.<br>Results from several simulations are included, and for each the following is provided<br>-- An OpenFOAM case, which should be possible to run. Restart files containing 3d fields, including the time-averaged data are present for each case.<br>-- 2d data obtained by averaging along the spanwise direction. It is available as a .vtm file and associated .vtp files. These can be opened in e.g. Paraview.<br>The following simulations are covered<br>-- The main simulation. Here additional data is present.* The probe-data for velocity and void fraction values, as hdf5 files (the probes_* files, outside the main_simulation.zip). * Time spectra computed based on the probe data, as txt files.<br>* Two-point correlations computed based on the probe data, as txt files. * The time-series of the force on the beach wall, as an hdf5 file. * The time-series of the volume of leaked air, as an hdf5 file.<br>-- Three simulations constituting a mesh resolution study.<br>-- Three cases constituting the study on the effect of the length of the cavity.<br>-- One cases constituting the study on the effects of surface tension.<br><br>Additionally the plot_scripts archive contains Pythons that allow to reporduce every figure found in the publication, excluding the 3d snapshots of the interface. The latter can be reproduced with Paraview. The scrip depend on several packages commonly used in scientific workflows, but also an additional package called turbulucid, which is available at<br>https://github.com/timofeymukha/turbulucid<br>Finally, an archive of exracted isosurfaces of alpha=0.5 is found in the file interface.zip. These are extracted from the simulation on the refinement level 2 mesh and allow to visualize the evolution of the interface. A video animation of this is also provide in acs.mp4<br><br>本数据集包含针对简化船舶内部气腔的大涡模拟（Large Eddy Simulation, LES）结果，配套于一篇即将投稿至相关学术期刊的研究论文。数据集具体内容如下： 包含多组模拟结果，每组算例均附带以下资料： -- 可直接运行的OpenFOAM算例文件；每组算例均包含存储三维场数据的重启文件，其中涵盖时间平均场数据。 -- 沿展向平均得到的二维数据，以.vtm文件及关联的.vtp文件格式存储，可通过Paraview等可视化软件打开查看。 本次数据集覆盖以下四类模拟研究： -- 主模拟算例：该算例附带额外专项数据： * 以hdf5格式存储的速度与空隙率探针数据（即主模拟压缩包外的probes_*系列文件）； * 基于探针数据计算得到的时间频谱，存储为txt格式文件； * 基于探针数据计算得到的两点相关性数据，存储为txt格式文件； * 岸壁受力时间序列，存储为hdf5格式文件； * 泄漏空气体积的时间序列，存储为hdf5格式文件。 -- 三组用于网格分辨率收敛性研究的模拟算例。 -- 三组用于探究气腔长度影响效应的研究算例。 -- 一组用于探究表面张力影响效应的研究算例。 此外，plot_scripts压缩包中包含可复现论文中所有图表的Python脚本（三维界面快照除外），三维界面快照可通过Paraview生成。该脚本依赖于科学计算常用的多款工具包，同时还需额外安装turbulucid工具包，其开源托管地址为https://github.com/timofeymukha/turbulucid。 另有interface.zip压缩包，其中存储了从采用网格加密等级2的模拟结果中提取的α=0.5等值面数据，可用于可视化气液界面的演化过程。配套提供了该等值面演化的动画视频acs.mp4。