WAVES REFLECTION AND INTERNAL CURRENT ON PERMEABLE COASTAL BED

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ZOLJOUDI M.; RAHMANIPOUR ANARAKI H.; ZARGANJ FARD P.

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Journal: JOURNAL OF MARINE SCIENCES AND TECHNOLOGY Year:2004 | Volume:3 | Issue:2-3 Page(s): 15-24

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Information Journal Paper

Title

WAVES REFLECTION AND INTERNAL CURRENT ON PERMEABLE COASTAL BED

Author(s)

ZOLJOUDI M. | RAHMANIPOUR ANARAKI H. | ZARGANJ FARD P. | Issue Writer Certificate

Keywords

BED PERMEABILITYQ4

BED CURRENTQ4

WAVE BREAKING SIMILARITY PARAMETERQ4

WAVE STEEPNESSQ4

Abstract

We studied the effect of permeability on wave reflection by Mansard method with 3 wave height meter sensors applied in wave flume. By increasing of fluid head, some of it penetrates into bed which called suction. In this case streamlines are close to bed and velocity near bed increases that result in bed stress increases by factor 2.5. On the other hand, by decreasing the fluid head, it leaks out of bed, called injection, which results in -decreased mean velocity near bed and 70% decrease in stress. Reflection factor of waves decreases at coasts for the same permeability by increasing WAVE STEEPNESS. By increasing of WAVE BREAKING SIMILARITY PARAMETER, the wave reflection parameter increases about 2 times. We conclude that the reflection parameter reduced by increasing permeability . We used 7 regular waves with range of steepness from 0.02 to 0.04 in deep water to study effects of permeability on wave reflection as well. As for the BED CURRENTs, by increasing its slope to (1:3), for very low, low, middle, and high permeabilities, results are in agreement with the previous studies, but there is a slight difference in current shape.

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References

THE EFFECTS OF PERMEABLE BED ON WAVES RUN-UP AND SURFACE STRESS

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APA: Copy

ZOLJOUDI, M., RAHMANIPOUR ANARAKI, H., & ZARGANJ FARD, P.. (2004). WAVES REFLECTION AND INTERNAL CURRENT ON PERMEABLE COASTAL BED. JOURNAL OF MARINE SCIENCES AND TECHNOLOGY, 3(2-3), 15-24. SID. https://sid.ir/paper/74724/en

Vancouver: Copy

ZOLJOUDI M., RAHMANIPOUR ANARAKI H., ZARGANJ FARD P.. WAVES REFLECTION AND INTERNAL CURRENT ON PERMEABLE COASTAL BED. JOURNAL OF MARINE SCIENCES AND TECHNOLOGY[Internet]. 2004;3(2-3):15-24. Available from: https://sid.ir/paper/74724/en

IEEE: Copy

M. ZOLJOUDI, H. RAHMANIPOUR ANARAKI, and P. ZARGANJ FARD, “WAVES REFLECTION AND INTERNAL CURRENT ON PERMEABLE COASTAL BED,” JOURNAL OF MARINE SCIENCES AND TECHNOLOGY, vol. 3, no. 2-3, pp. 15–24, 2004, [Online]. Available: https://sid.ir/paper/74724/en

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