1) second order differential equation of thermal model
二阶微分方程热模型
2) second order heat conduction differential equations
二阶热传导微分方程
1.
We wish to consider it to vary with space coordinate according to a linear and an exponential law, basing on this proposal we have been able to set up six second order heat conduction differential equations.
本文叙述变导热系数的一般含义,并假定物体的导热系数枚直线和指数规律空间地改变,建立六个二阶热传导微分方程,指出这些方程不能描述真正的变系数热传导过程。
3) elliptic partial differential equations of second order
二阶椭圆型微分方程
5) second order elliptic partial differential equation
二阶椭圆型偏微分方程
1.
This paper presents a kind of finite volume element scheme for two-dimensional second order elliptic partial differential equations with Dirichlet boundary condition and we prove that the scheme has second order convergence accuracy with respect to discrete energy norm.
针对二维二阶椭圆型偏微分方程边值问题提出了一种新型的有限体积元格式,证明了该格式按离散能量模具有二阶收敛精度,具体算例表明,该格式计算效果良好。
6) second-order delay differential equations
二阶滞后型微分方程
补充资料:二阶线性齐次微分方程
二阶线性微分方程的一般形式为
ay"+by'+cy=f(1)
其中系数abc及f是自变量x的函数或是常数。函数f称为函数的自由项。若f≡0,则方程(1)变为
ay"+by'+cy=0(2)
称为二阶线性齐次微分方程,而方程(1)称为二阶线性非齐次微分方程。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条