In this paper, using total differentiation method and variation of constants, we give general solution formula of Bernoulli equation with different methods.
本文使用全微分法和常数变易法,从不同角度给出伯努利方程通解的公式。
2
By means of formula of orifice come out, Bernoulli equation, formula of discharge along way and law of lose, general group of equation of discharge flow was established.
运用孔口出流公式、伯努力方程、沿途泄流公式及损失规律,建立了泄流管路的通用方程组。
3
There is a simple formula of Bernoulli number with using extraction a derivative rule of compound function and progression theory and so a given important value in the theory and application.