由于对流为主的弥散方程具有双曲性质，中心差分格式虽然关于空间步长具有二阶精度，但会产生数值弥散和非物理力学特性的数值振荡，使数值模拟失真。
Due to the hyperbolic properties of convection-dominate dispersion equations, the central difference formula often cause numerical dispersion and oscillation even it has two-order precision in space.
该模型为以对流传热为主的金属冲击加热炉内的综合传热过程提供了一种理论研究途径。
It provides a theoretical way to study the multiple heat transfer in which heat is mainly transfered by convection in impinging furnace.
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