使用能量平衡的感知热值与空气动力学方法对表面层流的量化
Applied optics
|June 10, 2024
概括
计算光学流 (Cn2) 依赖于感知热量. 与散装空气动力学方法相比,恩比率方法为确定感热提供了更准确和可靠的方法,改善了Cn2计算.
科学领域:
- 大气科学 大气科学
- 光学流是指光学流的发生.
- 表面层气象学 表面层气象学
背景情况:
- 光学流 (Cn2) 往往来自地表层的大气性质.
- 感知热量是Cn2计算的关键组成部分.
- 对于感知热量的传统散装空气动力学方法有局限性,特别是在自由对流条件之外.
研究的目的:
- 为了比较Cn2计算的准确性,使用来自散装空气动力学方法的感知热量与能量平衡 (博恩比率) 方法.
- 评估不同方法的可靠性和简单性,以计算表面层感知热流量.
- 评估感知热量计算方法对光学流估计的影响.
主要方法:
- 计算的表面层折射率结构函数 (Cn2) 值.
- 使用散装空气动力学方法和能量平衡 (博恩比率) 方法确定感知热量流.
- 将计算的Cn2值与不同高度的声波风力计的测量值进行了比较.
主要成果:
- 从波恩比率方法中获得的感知热量产生了更简单,更可靠,更准确的表面层Cn2值.
- 散装空气动力学方法的假设在不同的条件下对Cn2计算不太适合.
- 直接评估光学流驱动的感知热流是使用波恩比率更有效的.
结论:
- 恩比率方法优于散装空气动力学方法,用于计算与光学流相关的感知热量流.
- 精确的感知热量流量测定对于精确的光学流 (Cn2) 估计至关重要.
- 这项研究强调了大气光学流研究的更强有力的方法.
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