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首页> 外文会议>International Conference on Computational Science - ICCA 2003 Pt.1 Jun 2-4, 2003 Melbourne, Australia and St. Petersburg, Russia >Heat Transfer, Newton's Law of Cooling and the Law of Entropy Increase Simulated by the Real-Time Computer Experiment in Java
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Heat Transfer, Newton's Law of Cooling and the Law of Entropy Increase Simulated by the Real-Time Computer Experiment in Java

机译：通过Java实时计算机实验模拟的传热，牛顿冷却定律和熵增加定律

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Exploitation of a real-time computer experiment connected with advanced education of statistical mechanics and thermodynamics allows us to study a commonly occurring phenomenon of heat transfer through a diathermic wall; this wall separates the container into two parts consisting of an ideal gas at different temperatures. The system as a whole is isolated from the surroundigs by very massive border walls. We assume that the walls are rough which introduces the necessary spatial molecular chaos in the system. We study (ⅰ) the thermalization process where the temperatures of both parts of the container relax to the same, final one. We found (ⅱ) that the temperature difference relaxes according to the empirical Newton's law of cooling obeyed by real systems. Finally, we confirmed (ⅲ) the law of entropy increase and verified its validity for this small system. We used a simple hybrid molecular dynamics where the scattering of atoms has a random character but between the successive scattering steps the motion of atoms is deterministic.
机译：利用实时计算机实验与统计力学和热力学的进阶教育相结合，可以研究透热壁常见的传热现象。该壁将容器分为两部分，两部分由温度不同的理想气体组成。整个系统通过非常大的边界墙与周围环境隔离。我们假设壁是粗糙的，这会在系统中引入必要的空间分子混乱。我们研究（ⅰ）加热过程，在该过程中，容器两部分的温度都松弛到相同的最终温度。我们发现（ⅱ），根据实际系统服从的经验牛顿冷却定律，温度差松弛。最后，我们确认了熵增加定律，并验证了其在该小型系统中的有效性。我们使用了一种简单的混合分子动力学，其中原子的散射具有随机特征，但是在连续的散射步骤之间，原子的运动是确定的。

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