Compressible turbulent plane channel DNS database

The database contains detailed turbulence statistics of compressible turbulent plane channel (TPC) flow, obtained from direct numerical simulation (DNS), solving the compressible Navier-Stokes equations [1,2]. The database contains 25 flow-conditions determined by the corresponding Reynolds and Mach numbers (Retau*, MCLx), covering the range 100 < Retau* <1000 , 0.3< MCLx <2.5. The directory corresponding to each flow-condition contains 4 subdirectories: 0_GD_global_data 1_PBs_profiles_and_budgets 2_pdfsq_single_variable_pdfs 3_pdfs2q_two_variable_joint_pdfs each of which contains plain text (.txt.) files. Detailed comments in each file describe its contents, which are space-separated columns. All data can be directly plotted from the files using gnuplot. Detailed description of the computations and initial physical analysis of the data can be found in [1,2] (both are open access). [1] Gerolymos G.A, Vallet I.: J. Fluid Mech. 958 (2023) A19; doi:10.1017/jfm.2023.42 [2] Gerolymos G.A, Vallet I.: J. Fluid Mech. 978 (2024) A25; doi:10.1017/jfm.2023.1034

本数据库收录了基于直接数值模拟（Direct Numerical Simulation, DNS）求解可压缩纳维-斯托克斯方程（Navier-Stokes equations）得到的可压缩湍流平面通道（Turbulent Plane Channel, TPC）流动的详细湍流统计数据[1,2]。该数据库共包含25组流动工况，由对应的雷诺数与马赫数（Retau*, MCLx）确定，工况覆盖范围为100 < Retau* < 1000、0.3 < MCLx < 2.5。每个流动工况对应的目录包含4个子目录，分别为0_GD_global_data、1_PBs_profiles_and_budgets、2_pdfsq_single_variable_pdfs、3_pdfs2q_two_variable_joint_pdfs，每个子目录均存储纯文本（.txt）文件。每个文件内均附有详细注释以说明文件内容，文件内的数据以空格分隔为多列。所有数据均可通过gnuplot直接绘图。关于计算过程与数据初始物理分析的详细描述可参见文献[1,2]，两篇文献均可开放获取。[1] Gerolymos G.A, Vallet I.: J. Fluid Mech. 958 (2023) A19; doi:10.1017/jfm.2023.42 [2] Gerolymos G.A, Vallet I.: J. Fluid Mech. 978 (2024) A25; doi:10.1017/jfm.2023.1034

搜集汇总

背景与挑战

背景概述

该数据集包含通过直接数值模拟（DNS）获得的压缩湍流平面通道流动的详细湍流统计数据，覆盖25种不同的流动条件，适用于航空航天工程、计算物理和流体力学等领域的研究。数据以纯文本格式存储，便于直接使用gnuplot进行绘图和分析。