高分辨率计算是高置信度计算中一个极其重要而复杂的研究问题。相对传统的数值计算，高分辨率计算对计算机系统和应用程序（物理建模、参数、计算方法和算法等）提出了很高的要求。并行计算机的发展为大规模科学计算，特别是数值计算分辨率的提高提供了条件。同时，数值计算分辨率的提高也对计算机的计算能力、计算方法、物理建模和参数等提出了新的、更高的要求。本文以一个二维流体力学程序计算平面爆轰问题为例，研究在计算分辨率提高时初始起爆区域、时间步长、网格构造、人为粘性、计算机模拟误差、计算量增长等方面出现的问题，提出了相应的解决办法，提高了计算的精确度。

High resolution is an important question in high confidence computing. As compared to the conventional numerical computing, high resolutional computing requires high performance supercomputers and high quality programs.The development of parallel computers makes it possible for large scale scientific computation,espically for the boost of resolution in numerical computations.At the same time,a boost in resolution brings new and high requests in the computer’s capability/computational method/physical modeling and parameters. Based on the research of a twodimentional hydrodynamical computational problem, we investigate the key technologies(such as initial priming area/time step/artificial glutinosity/computer’s simulative error/boost of computing quantity) in the boost of resolution, solve these questions and also improve the precision of computation.