High-Resolution Calculations in Gas Dynamics

首席研究员承诺开发一个最先进的软件包，用于计算复杂形状物体内部和周围的非定常、化学反应、两相、粘性流动。这种流体流动问题出现在空气动力学中，例如在描述经过机翼或整个飞机或导弹周围的气流时。另一个应用领域涉及内燃机、喷气发动机和涡轮机的研究和设计。在这些应用中，高度精确的模拟是可取的，但计算成本很高。要开发的软件包旨在包括准确和高效的数值算法，并涵盖现有的气体动力学程序和Navier-Stokes（流体流动）程序的应用。

The principal investigator undertakes to develop a state-of-the-art software package to compute unsteady, chemically reacting, two-phase, viscous flows in and around objects of complex shape. Such fluid flow problems arise in aerodynamics, for example in describing airflow past wings or around entire planes or missiles. Another area of applications involves the study and design of internal-combustion engines, jet engines, and turbines. In each of these applications highly accurate simulations are desirable but expensive to calculate. The software package to be developed is intended to include accurate and efficient numerical algorithms, and to cover applications of existing gas dynamics programs and Navier-Stokes (fluid flow) programs.