【摘 要】
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原始方程数值解的质量在很大程度上依赖于使用的质量守恒方法的精确度。本文已经证实,如果适当地修改平流方程,那么就可以减小因连续方程的影响而产生的误差。 一般来说,我
【机 构】
:
保加利亚索菲亚水文气象学院rrrrrrrrn,保加利亚索菲亚水文气象学院
论文部分内容阅读
原始方程数值解的质量在很大程度上依赖于使用的质量守恒方法的精确度。本文已经证实,如果适当地修改平流方程,那么就可以减小因连续方程的影响而产生的误差。 一般来说,我们可以考虑Ω域中的二维问题。在本文中我们使用正压原始方程组: u_i+uu_x+vu_y+fv+φ_x=0 (1) v_i+uv_x+vv_y-fu+φ_y=0 u_x+v_y=0(2) 其中u,v是速度分量,u_x、v_x和u_y、v_y是它们对x和y的导数,φ表示位势,此外这里把科氏参数看作为常数。
The quality of the numerical solution of the original equation depends to a large extent on the accuracy of the mass conservation method used. It has been shown in this paper that if the advection equation is properly modified, the error due to the influence of the continuous equation can be reduced. In general, we can consider the two-dimensional problem in the Ω domain. In this paper we use the positive pressure primitive equations: u_i + uu_x + vu_y + fv + φ_x = 0 v_i + uv_x + vv_y-fu + φ_y = 0 u_x + v_y = 0 where u, The components, u_x, v_x and u_y, v_y are their derivatives of x and y, φ the potential, and here the Coriolis parameters are taken as constants.
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