High Fidelity, Benchmark Unsteady Dataset for 2D Lid Driven Cavity Problem

A high fidelity unsteady dataset obtained using fourth order Runge-Kutta time integration and NCCD compact scheme for the 2D square lid driven cavity problem is provided for AI/ML and general research. Data is provided for 2 Reynolds numbers: Re=8100 and 8500. Computations are performed for a uniformly spaced 257x257 grid and a time step of 1e-5. Full domain data in Tecplot ASCII format is provided with streamfunction and vorticity data.

本数据集为面向人工智能/机器学习（AI/ML）及通用研究提供的高保真非定常数据集，基于四阶龙格-库塔时间积分法（fourth order Runge-Kutta time integration）与NCCD紧致格式（NCCD compact scheme）针对二维方腔驱动流问题（2D square lid driven cavity problem）生成。数据集包含两组雷诺数（Reynolds number，简称Re）工况：Re=8100与Re=8500。计算采用均匀分布的257×257网格，时间步长为1e-5。数据集以Tecplot ASCII格式（Tecplot ASCII format）提供全流域的流函数（streamfunction）与涡量（vorticity）数据。