scholarly journals Design of a Facility for Tsunami Run up Generation to Study Tsunami and Seawall Interaction

2019 ◽  
Vol 5 (1) ◽  
pp. 9
Author(s):  
Warniyati Warniyati ◽  
Radianta Triatmadja ◽  
Nur Yuwono ◽  
David S. V. L Bangguna
Keyword(s):  
Numerical Simulation ◽  
Tsunami Wave ◽  
Wave Generator ◽  
Control Discharge ◽  
Run Up ◽  
Tsunami Run Up ◽  
Experimental Researches

Experimental researches on the tsunami in the laboratory have been conducted using various methods. The use and techniques of tsunami wave generator depend on the objective of the tsunami observation to be conducted. When the objective is the scouring at the downstream of a seawall, the use of a short flume with control discharge seems to be appropriate. A valve with a mechanic controller was equipped to control the discharge from a reservoir into the flume. A numerical simulation of discharge into the flume and the overflow above the seawall was conducted to determine the dimension of the tsunami flume and its generator before construction. The experiments were conducted to simulate the hydrograph of tsunami overflow above the seawall model. The numerical hydrograph is found to be comparable with the experimental hydrograph. This indicates that the tsunami wave generator is capable of simulating tsunami hydrograph and ready for further use of simulations.

Numerical simulation of the tsunami run-up on the coast using the method of large particles

2015 ◽  
Vol 7 (4) ◽  
pp. 339-348
Author(s):  
Yu. I. Shokin ◽  
S. A. Beisel ◽  
A. D. Rychkov ◽  
L. B. Chubarov
Keyword(s):  
Numerical Simulation ◽  
Large Particles ◽  
Run Up ◽  
Tsunami Run Up

scholarly journals On numerical simulation of tsunami run-up

PAMM ◽  
2015 ◽  
Vol 15 (1) ◽  
pp. 533-534
Author(s):  
Nina Shokina
Keyword(s):  
Numerical Simulation ◽  
Run Up ◽  
Tsunami Run Up

Numerical Simulation and Experiment on Tsunami Run-Up

1988 ◽  
Vol 31 (1) ◽  
pp. 87-104 ◽  
Author(s):  
Takaaki Uda ◽  
Atsushi Omata ◽  
Yasuhisa Yokoyama ◽  
Shigeru Yamaki
Keyword(s):  
Numerical Simulation ◽  
Simulation And Experiment ◽  
Run Up ◽  
Tsunami Run Up

Effect of open gap in coastal forest on tsunami run-up—investigations by experiment and numerical simulation

2009 ◽  
Vol 36 (15-16) ◽  
pp. 1258-1269 ◽  
Author(s):  
Nguyen Ba Thuy ◽  
Katsutoshi Tanimoto ◽  
Norio Tanaka ◽  
Kenji Harada ◽  
Kosuke Iimura
Keyword(s):  
Numerical Simulation ◽  
Coastal Forest ◽  
Run Up ◽  
Tsunami Run Up

Numerical Simulation of Tsunami Run-Up

1978 ◽  
Vol 21 (1) ◽  
pp. 13-20 ◽  
Author(s):  
Nobuo Shuto ◽  
Tomoaki Goto
Keyword(s):  
Numerical Simulation ◽  
Run Up ◽  
Tsunami Run Up

scholarly journals Review Study on Location Plan of Temporary Shelter for Tsunami Disaster in Kuta Bay of Central Lombok

2018 ◽  
Vol 4 (3) ◽  
pp. 243
Author(s):  
Adi Mawardin
Keyword(s):  
Wave Propagation ◽  
Arrival Time ◽  
Tsunami Wave ◽  
Historical Record ◽  
Tectonic Activity ◽  
Evacuation Simulation ◽  
Tsunami Disaster ◽  
Magnitude Variation ◽  
Run Up ◽  
Tsunami Run Up

Historical record showed in 1977, tsunami attacked Lombok and caused extensive damages due to tectonic activity. Kuta Bay located in the southern area of Lombok has a high risk of earthquake and tsunami, thus mitigation plan on tsunami attack is very important. This study aimed to determine the arrival time, run-up height of tsunami and the coverage areas, so it could be used to determine the temporary shelter location (Tempat Evakuasi Sementara-TES). Simulation of the tsunami wave propagation used the TUNAMI modified (beta version) program with three scenarios of earthquake magnitude variation (Mw), namely 7.7, 8.1, 8.3, and 7.9 (based on the Sumba earthquake event in 1977). Field surveys, questionnaire distributions, and interviews were used in determining input parameters of Tsunami Evacuation Simulation (Simulasi Evakuasi Tsunami-SET) by using 2011 EVACUWARE 1.0 version. Tsunami wave propagation simulation showed the tsunami arrival time on Kuta Bay ranged between 21 - 38 minutes. Tsunami run-up height was about 1.01 - 8.71 meters along Kuta Bay, with the farthest distance of inundation was 860 meters from the seashore. The percentage of survivors based on SET results in scenario 1 and 2 for 20 minutes of evacuation time were respectively, 63.62% and 93.27%.

scholarly journals Physical and Numerical Modelling of Tsunami Run-up on Seawall at Sloping Beach

2019 ◽  
Vol 5 (2) ◽  
pp. 139
Author(s):  
Ma'ruf Hadi Sutanto
Keyword(s):  
Numerical Model ◽  
Water Depth ◽  
Tsunami Wave ◽  
Peak Height ◽  
Initial Water ◽  
Tsunami Mitigation ◽  
Run Up ◽  
Tsunami Run Up ◽  
Sloping Beach ◽  
Reduction Percentage

Tsunami run-up on land has a large destructive power. Further studies are deemed necessary to understand the process and characteristics of tsunami run-up in coastal areas. Seawall structures can reduce the run-up of a tsunami depending on the height of the seawall crest. Physical modeling shows that seawall may significantly reduce run-up (𝑅) and inundation (𝑋𝑖). The highest reduction up to 55% where the seawall peak height is 7 cm and the water depth is 15 cm. With the same scenario in numerical modeling, the percentage reduction is 67.53%. The highest inundation (Xi) in the scenario without seawall structure is 6.081 m when the initial water depth (d0) equals to 30 cm. The result of the numerical model for the same scenario is 6.970 m. Seawall as tsunami mitigation structure is only effective when the tsunami wave is relatively low compared to the seawall height (H/ sw). Reduction percentage > 25%, with conditions that H/ sw is < 0.856 (physical model) and < 0.802 (numerical model).

scholarly journals EFFECT OF THE DENSITY OF INUNDATION WATER ON TSUNAMI RUN-UP

2020 ◽  
pp. 62
Author(s):  
Hideo Matsutomi
Keyword(s):  
Numerical Simulation ◽  
Analytical Solutions ◽  
Series Solutions ◽  
Derived Series ◽  
Tip Position ◽  
Run Up ◽  
Tsunami Run Up ◽  
The Relationship ◽  
Sloping Bottom ◽  
Effects Of Density

Aiming for the advancement of historical and/or prospective tsunami scale evaluations, and focusing on the tsunami run-up, series solutions to the tip position a(t), velocity U (=da/dt) and acceleration d2a/dt2 in the tip region of inundation flow (unsteady flow) with sediment over a uniformly sloping bottom under the condition that the friction factor K is not linked to the density of inundation water, and analytical solutions to a(t), U(t), d2a/dt2, the maximum run-up distance a_m and height Rm under the condition that K is linked to density are derived, and effects of density on them and run-up process are theoretically examined. It is indicated that (1) in the run-up analysis (including numerical simulation) of tsunami with sediment under the condition of a constant K, even if a_m and Rm can be predicted accurately, there is a possibility of evaluating the run-up duration time inaccurately and vice versa, and (2) linking K to density is necessary to solve this matter. An expression for the relationship between K and is also presented. Moreover, it is verified that the derived series and analytical solutions are useful to discuss the effects of density on the run-up of tsunami with sediment through a comparison between the experimental and theoretical maximum run-up distances.

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