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| Original language | German |
|---|---|
| Publication status | Published - 2010 |
Abstract
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2010.
Research output: Contribution to conference › Paper › Research › peer review
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TY - CONF
T1 - Numerical and experimental study on tsunami run-up and inundation influenced by macro roughness elements
AU - Goseberg, N.
AU - Schlurmann, T.
N1 - Cited By :5 Export Date: 1 February 2021
PY - 2010
Y1 - 2010
N2 - This research study considers long wave run-up experimentally and numerically. At first, an alternative methodology in long wave physical modeling is presented by means of a set of pipe pumps forcing the inflow of a controlled volume of water into a wave channel mimicking a tsunami-like wave shape that is consistently contained by a proportional plus integral plus derivative controller (PID) controller. Arbitrary wave lengths are persistently generated by means of the proposed methodology. First results are compared to tsunami data stemming from conventional experimental configurations with solitary waves as well as with recent numerical modeling results. Comparisons are thoroughly discussed and - in a second step - numerical simulations are accomplished taking the interaction of long wave run-up and macro-roughness elements into account. Four different experimental configurations of macro-roughness elements are carried out while spacing between elements and numbers of obstacle rows are alternated. A fundamental correlation analysis reveals that a correlation of the number of macro-roughness rows, effective area of flow cross section and a grouping factor of different element configurations exists in principle.
AB - This research study considers long wave run-up experimentally and numerically. At first, an alternative methodology in long wave physical modeling is presented by means of a set of pipe pumps forcing the inflow of a controlled volume of water into a wave channel mimicking a tsunami-like wave shape that is consistently contained by a proportional plus integral plus derivative controller (PID) controller. Arbitrary wave lengths are persistently generated by means of the proposed methodology. First results are compared to tsunami data stemming from conventional experimental configurations with solitary waves as well as with recent numerical modeling results. Comparisons are thoroughly discussed and - in a second step - numerical simulations are accomplished taking the interaction of long wave run-up and macro-roughness elements into account. Four different experimental configurations of macro-roughness elements are carried out while spacing between elements and numbers of obstacle rows are alternated. A fundamental correlation analysis reveals that a correlation of the number of macro-roughness rows, effective area of flow cross section and a grouping factor of different element configurations exists in principle.
KW - Laboratory wave generation
KW - Long wave
KW - Macro-roughness
KW - Numerical modeling
KW - Physical modeling
KW - Tsunami run-up
KW - Controlled volume
KW - Correlation analysis
KW - Cross section
KW - Effective area
KW - Long waves
KW - Macro-roughness elements
KW - Numerical and experimental study
KW - Proportional plus integral plus derivative controllers
KW - Research studies
KW - Wave channels
KW - Wave generation
KW - Wave shape
KW - Coastal engineering
KW - Models
KW - Numerical models
KW - Solitons
KW - Tsunamis
M3 - Paper
ER -