roughness length

基本解释

• 粗糙长度

英汉例句

双语例句

• For the usual velocity profile method, four kinds of method are given: 1) Estimating roughness length from velocity time series of two near-bottom layers;
  针对使用较常见的流速剖面法，本文介绍了四种方法1） 近底两层流速时间系列估计粗糙长度；
• Some relationships of roughness length, friction velocity and resistance coefficient with wind velocity and wave height in neutral stratification have been given.
  给出了中性层结时水面粗糙度、动力摩擦速度及阻力系数与风速和浪高的关系。
• A linear correlation exists between the current speed of adjacent layers, and the correlation is dependent on the height of the layer above the seabed, roughness length and shear velocity.
  相邻层位的流速在时间序列上存在很高的线性关系，回归直线的斜率与水层距底床的高度、粗糙长度和摩阻流速有关。

• roughness length更多例句

词组短语

短语

• surface roughness length 地面粗糙长度
• vapour roughness length 水汽粗糙度
• effective roughness length 有效粗糙度长度
• scalar roughness length 标量粗糙度
• temperature roughness length 热力粗糙度

• roughness length更多词组

专业释义

环境科学技术

• 粗糙度

  Wind velocity and roughness length influence the friction velocity, the range of average friction velocity is 0.0580.092m/s. The threshold friction velocity of the soil surface is about 0.082m/s, less than the surface covered by vegetation, sand, large particle.
  摩阻风速受风速和地表粗糙度的影响,日平均摩阻风速最大变化范围是0.058～0.092m/s。

  生物学

• 粗糙长度

  Calculated friction velocity caused by tidal current (u*_c)) is 0.39～6.8cm/s. Roughness length z_0=0.31cm.
  计算得出潮流摩阻流速u*_c。 范围为0.39～6.8cm/s,粗糙长度Z0=0.31cm。

  水利工程

• 粗糙长度

地球科学

• 粗糙度长度
• 粗糙长度