scholarly journals CHARACTERISTICS OF VELOCITY VERTICAL DISTRIBUTION AND BOTTOM SHEAR STRESS OF TSUNAMI IN A STRAIT

1999 ◽  
Vol 43 ◽  
pp. 419-424
Author(s):  
Hideo Ohtani ◽  
Makoto Takao ◽  
Naoki Fujii
Keyword(s):  
Shear Stress ◽  
Vertical Distribution ◽  
Bottom Shear Stress

scholarly journals RELATIONSHIP BETWEEN BOTTOM SHEAR STRESS AND TURBIDITY IN ESTUARIES

2011 ◽  
Vol 67 (4) ◽  
pp. I_1591-I_1596
Author(s):  
Jun-ichi SAKAMOTO ◽  
Haruhiko MATSUMOTO ◽  
Kesayoshi HADANO ◽  
Takuzo AMANO ◽  
Kiyonobu MITSUNOBU
Keyword(s):  
Shear Stress ◽  
Bottom Shear Stress

scholarly journals EROSION AROUND A PILE DUE TO CURRENT AND BREAKING WAVES

1988 ◽  
Vol 1 (21) ◽  
pp. 102 ◽  
Author(s):  
E.W. Bijker ◽  
C.A. De Bruyn
Keyword(s):  
Shear Stress ◽  
Breaking Waves ◽  
Velocity Profiles ◽  
Long Waves ◽  
Orbital Velocity ◽  
Bottom Shear Stress ◽  
Normal Waves ◽  
Short Waves ◽  
A Current

Tests have been performed on a vertical pile subject to current only and to a combination of current with normal waves and current with breaking waves. The scour around the pile produced by current only is decreased by normal short waves superimposed upon that current and increased when breaking waves are superimposed upon the current. After analysis of the velocity profiles in the undisturbed area upstream of the pile and next to the pile, the following explanation is found for this phenomenon. When normal short waves are superimposed upon a current, the bottom shear stress of the combination of current with waves is increased more in the undisturbed area than next to the pile in the scour area. This results in a decrease of the scour around the pile. Due to the large values of the orbital velocity under breaking waves this effect is reversed for the combination of a current with breaking and relatively long waves. This results in an increase of the scour around the pile.

scholarly journals Research on wind-induced nutrient release in Yangshapao Reservoir, China

2019 ◽  
Vol 20 (2) ◽  
pp. 469-477
Author(s):  
Yu Bai ◽  
Jinhua Gao ◽  
Ying Zhang
Keyword(s):  
Water Quality ◽  
Shear Stress ◽  
Wind Speed ◽  
Nutrient Release ◽  
Urban Water ◽  
Bottom Shear Stress ◽  
Dissolved Phosphorus ◽  
Urban Water Use ◽  
Lakes And Reservoirs

Abstract Nutrient (total nitrogen (TN) and total phosphorus (TP)) are considered the major indicators to be impacted by wind speed in shallow lakes and reservoirs. As a reservoir situated in Jilin Province, China, Yangshapao Reservoir has been employed for irrigation and urban water use. After 2 years’ observation carried out on water quality and wind speed, it was found that the TN, NH4 and TP are significantly correlated with the bottom shear stress attributed to wind, whereas the dissolved phosphorus (DP) is not. Bottom shear stress is also noticeably associated with dissolved oxygen (DO), thus promoting nutrient release into the water body. In winter, ice can effectively inhibit the wind-induced shear stress, and the TP concentration is evidently lower than in the other seasons. This scenario should be considered in the management of the water quality of the lake and similar lakes.

scholarly journals Estimating Instantaneous turbulent Bottom Shear Stress under Irregular Waves

2000 ◽  
Vol 3 ◽  
pp. 797-804
Author(s):  
Takeshi SUZUKI ◽  
Mustafa Ataus SAMAD ◽  
Hiroto YAMAJI ◽  
Hitoshi TANAKA
Keyword(s):  
Shear Stress ◽  
Irregular Waves ◽  
Bottom Shear Stress

ASSESSMENT OF PRESENT AND FUTURE BOTTOM SHEAR STRESS IN THE ESTUARY AND GULF OF ST. LAWRENCE

2019 ◽  
Author(s):  
C. DUFRESNE ◽  
S. SENNEVILLE ◽  
U. NEUMEIER ◽  
A. NORMANDEAU ◽  
J. CAVEEN ◽  
...  
Keyword(s):  
Shear Stress ◽  
Bottom Shear Stress
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