本文由基本的守恒方程出发，获得了能描述回热器存在声直流时的非线性动力学模型及由此而导致的非线性时均热力学效应。
Based on basic conservation equations, the paper derived the thermoacoustic streaming model of a cyclic regenerator and discussed some nonlinear, time-averaged thermodynamic effects.
文中根据刚体动力学及动量守恒定理，建立起颗粒–壁面碰撞三维数学模型，并采用此三维数学模型研究了壁面约束效应对细长颗粒流化特性的影响。
The three-dimensional particle-wall collision mathematical models were founded in the light of the kinetic of rigid and the momentum conservation law, and the effects of wall on the f.
由于轻核质量轻，发射粒子后反冲效应很强，理论计算中还严格考虑了反冲效应的影响，从而保证了能量守恒。
Because of the light mass, the recoil effect is strong after the particle is emitted, so the recoil effect is must taken into account to maintain the energy balance.
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