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首页> 外文期刊>International journal of numerical methods for heat & fluid flow >Simulation of the impinging liquid jet cooling process of a flat plate
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Simulation of the impinging liquid jet cooling process of a flat plate

机译：平板撞击液体喷射冷却过程的模拟

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Purpose - The purpose of this paper is to develop a numerical model to simulate the flow field as well as the conjugate heat transfer during unsteady cooling of a flat plate with a single submerged water jet. At wall temperatures above the liquid boiling point, the vapor formation process and the interaction of the vapor phase with the developing jet-flow field are included. Design/methodology/approach - The time-dependent flow and temperature distribution during all occurring boiling phases as well as the local and temporal distribution of the heat transfer coefficient on a flat plate can be simulated. Findings - The influence of the liquid jet flow rate (10,800 = Re_d = 32,400) and the nozzle distance to the plate (4 = H/d = 20) on the transient cooling process are analyzed. This includes the time-dependant positions of the transition regions between the boiling phases on the plate as well as the temperatures at these transition regions. Additionally, the local heat transfer rates are a direct result of the unsteady cooling simulation. Originality/value - A single model approach is developed and utilized to simulate the unsteady cooling process of a flat plate with an impinging water jet including all occurring boiling phases.
机译：目的-本文的目的是建立一个数值模型，以模拟通过单台水下注水器对平板进行非稳态冷却时的流场以及共轭传热。在高于液体沸点的壁温下，包括蒸气形成过程以及蒸气相与发展的射流场的相互作用。设计/方法/方法-可以模拟所有发生的沸腾阶段中随时间变化的流量和温度分布，以及平板上传热系数的局部和时间分布。发现-分析了液体喷射流量（10,800 = Re_d = 32,400）和喷嘴到板的距离（4 = H / d = 20）对瞬态冷却过程的影响。这包括在板上沸腾相之间的过渡区域的时间相关位置，以及这些过渡区域的温度。另外，局部传热速率是不稳定冷却模拟的直接结果。独创性/价值-开发了一种单一模型方法，并利用其模拟了带有冲击水射流（包括所有发生的沸腾相）的平板的非稳态冷却过程。

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