XII
𝐭𝐚𝐧 𝛂𝐁
Tangent of the slope of the berm
𝐓 𝐢𝐣
Lateral stresses.
𝐓 𝐦
the mean energy wave period.
𝐓 𝐦 𝐝𝐞𝐞𝐩
Mean period either from spectral analysis or from time domain analysis at deep
water
𝐓 𝐦−𝟏,𝟎 𝐝𝐞𝐞𝐩
Mean period from spectral analysis at deep water
𝐓 𝐦−𝟏,𝟎
The mean energy wave period.
𝐓 𝐦 −𝟏,𝟎 𝐭𝐨𝐞
Mean period from spectral analysis at the toe of the structure
𝐓 𝐦 𝐭𝐨𝐞
Mean period either from spectral analysis at the toe of the structure.
𝐓 𝐦𝐚𝐱
Maximum period value of the record.
𝐓 𝐩 𝐝𝐞𝐞𝐩
Peak period from spectral analysis at deep water
𝐓 𝐩 𝐭𝐨𝐞
Peak period from spectral analysis at the toe of the structure
𝐓 í µí°Average period of the top 1/3 of the record.
𝐓 𝐬−𝟏,𝟎
The spectral mean energy wave period (s).
𝐓 𝟏𝟎%
Average of the 1/10 of the upper period values of the record.
𝐮
Velocity component in the x direction.
𝐮 í µí°Velocity at which water is discharged into the ambient water.
𝐯
Velocity component in the y direction.
𝐯 í µí°Velocity at which water is discharged into the ambient water.
𝐯 ⃗
Velocity of propagation of a wave group (in the four-dimensional 𝒄 𝒙 ,𝒄 𝒚 ,𝒄 𝝈 ,𝒄 𝜽 )
𝐕 𝐦
𝐴verage height
𝐕 𝐦𝐚𝐱
Maximum value of the record
𝐕 𝐦𝐢𝐧
Minimum value of the record
𝐕 í µí°Average of the top 1/3 of the record
𝐰
Velocity component in the z direction.
𝐱. 𝐲 , 𝐳
Cartesian coordinates.
𝛁𝐱 ⃗⃗⃗⃗⃗
Two-dimensional differential operator in the space 𝑥
⃗⃗ .
𝐑 𝐜
Crest freeboard of the structure
𝐑 𝐝𝟏%
The run-down exceeded by 1% of waves.
𝐑 𝐝𝟐%
The run-down exceeded by 2% of waves.
𝐑 𝐮𝟐%
The run-up exceeded by 2% of waves.
𝛄 𝐛
the berm factor.
𝛄 𝐟
Roughness/permeability factor for the structure
𝛄 𝐯
correction factor for a vertical wall on the slope.
𝛄 𝛃
the correction factor for oblique waves.
𝛎 í µí°Turbulent vertical viscosity.
𝛏 𝐜𝐫
critical value of the surf similarity parameter.
𝛏 𝐦
breaker parameter based on 𝑠 𝑚
𝛏 𝐦−𝟏,𝟎
breaker parameter based on 𝑠 m−1,0
𝛏 𝐩
breaker parameter based on 𝑠 𝑝
𝛕 𝐛𝐱 , 𝛕 𝐛𝐲 ,
x and y components of bottom wind stress.
𝛕 𝐬𝐱 , 𝛕 𝐬𝐲
x and y components of surface wind stress.
𝚫
Relative buoyant density.
𝐪
Overtopping discharge per second per meter width [𝑚
3 /𝑠. 𝑚]
𝛀
Angular velocity of rotation.
𝛁
Four-dimensional differential operator in the space: (𝒙, 𝒚, 𝝈, 𝜽.)
𝛂
The slope angle (°).
𝛃
Angle of wave attack relative to the normal on the structure