Based on this method, a difference scheme is derived for the numerical solution of diffusion equation on the structured quadrilateral mesh. 在此基础上推导了在结构四边形网格上求解扩散方程的线性精确差分格式。
The pulsating flow field was simulated by the large eddy turbulence model and the momentum equations were discretized with the unbounded central difference scheme. 脉动流场计算采用大涡模拟湍流模型，动量方程的离散格式采用有限中心差分格式。
