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Direct computation of evaporation rate at the surface of swimming pool

机译：直接计算泳池表面的蒸发率

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摘要

Numerical model is proposed for simulating water evaporation at the surface of swimming pool. It incorporates only simple physical boundary conditions without prescribing mass flow at the surface. 2D-simulations are performed. Correlation is analyzed in terms of Sherwood-Rayleigh number relation. Evaporation rates calculated numerically are shown to fall within the range of existing empirical correlations for positive Rayleigh numbers. For negative Rayleigh numbers universal curve still exists but Sherwood number is less than estimated according to known correlations. Possible dependence of the evaporation rate on swimming pool size is discussed. Also, the model is useful in solving unstationary problems e.g. finding the temperature difference between air and water near the surface of water reservoir. Temperature difference is shown to depend linearly on relative humidity of the ambient air.
机译：提出了模拟游泳池表面水蒸发的数值模型。它仅包含简单的物理边界条件，而没有规定表面的质量流量。进行2D模拟。根据舍伍德-瑞利数关系分析相关性。数值计算得出的蒸发速率显示为处于瑞利数为正的现有经验相关性的范围内。对于负瑞利数，仍然存在通用曲线，但舍伍德数小于根据已知相关性估算的值。讨论了蒸发速率对游泳池大小的可能依赖性。而且，该模型对于解决非平稳问题是有用的。找出储水罐表面附近空气与水之间的温差。温度差显示为线性依赖于环境空气的相对湿度。

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  • 来源
    《Recent researches in mechanics》|2011年|p.120-124|共5页
  • 会议地点 Corfu Island(GR);Corfu Island(GR);Corfu Island(GR);Corfu Island(GR);Corfu Island(GR);Corfu Island(GR);Corfu Island(GR);Corfu Island(GR)
  • 作者

    Nikolay A. Vinnichenko; Alexander V. Uvarov; Dmitry A. Vetukov; Yulia Y. Plaksina;

  • 作者单位

    Faculty of Physics, Moscow M.V. Lomonosov State University, Leninskiye Gory, 1/2, Moscow, Russia;

    Faculty of Physics, Moscow M.V. Lomonosov State University, Leninskiye Gory, 1/2, Moscow, Russia;

    Faculty of Physics, Moscow M.V. Lomonosov State University, Leninskiye Gory, 1/2, Moscow, Russia;

    Faculty of Physics, Moscow M.V. Lomonosov State University, Leninskiye Gory, 1/2, Moscow, Russia;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 机械制造工艺;
  • 关键词

    evaporation rate; humidity; convection; CFD;

    机译：蒸发速率湿度;对流;差价合约;

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