PHYSICAL QUANTITY COMPUTATION PROGRAM, DAMPING FUNCTION COMPUTATION PROGRAM, TURBULENT FLOW VISCOSITY COMPUTATION PROGRAM AND FLUID ANALYSIS PROGRAM

摘要

PPROBLEM TO BE SOLVED: To highly accurately compute physical quantity for specifying a damping function. PSOLUTION: The damping function in this embodiment is defined by the use of a Kolmogorov's velocity scale. A dissipation rate SBSGS/SBof SGS turbulent energy for components of a wave number smaller in scale than a grid filter size is not used as it is in place of a dissipation rate for components of all wave numbers of turbulent energy, but the dissipation rate SBSGS/SBof SGS turbulent energy for components of a wave number smaller in scale than a grid filter size is converted to a dissipation rate for components of all wave numbers of turbulent energy by a predetermined wave number (grid filter size) when turbulent flow is modeled and a distance from the surface of a wall (a step A6). PCOPYRIGHT: (C)2005,JPO&NCIPI