Changeset 4093

Timestamp:

Dec 19, 2006, 3:21:40 PM (18 years ago)

Author:

sexton

Message:

smf report updates

Location:

anuga_work/production/sydney_2006

Files:

• report/anuga_setup.tex (modified) (3 diffs)
• report/execsum.tex (modified) (1 diff)
• report/interpretation.tex (modified) (1 diff)
• report/modelling_methodology.tex (modified) (1 diff)
• report/references.tex (modified) (1 diff)
• report/smfmodel.tex (modified) (1 diff)
• report_figures/GAlogo.jpg (added)
• report_figures/depth_vs_amp_dataslide.png (added)

anuga_work/production/sydney_2006/report/anuga_setup.tex

@@ -5 +5 @@
 \item onshore and offshore elevation data (topographic and bathymetric data, 
 see Section \ref{sec:data}),
-\item initial conditions, such as initial water levels (e.g. determined by tides),
-\item boundary conditions (the tsunami source as described in 
-Section \ref{sec:methodology}), and
+\item initial conditions, such as initial water levels (e.g. determined by tides) and the tsunami source
+as described in Section \ref{sec:methodology},
+\item boundary conditions and
 \item computational requirements relating to the mesh construction.
 \end{itemize}
@@ -79 +79 @@
 
 The final item to be addressed to complete the model setup is the 
-definition of the boundary condition. As 
-discussed in Section \ref{sec:methodology}, a Mw 9 event provides
-the tsunami source. The resultant tsunami wave is made up of a series
-of waves with different amplitudes which is affected by the energy
-and style of the event as well as the bathymetry whilst it travels
-from its source to Dampier. The amplitude and velocity of each of these
-waves are then provided to ANUGA as boundary conditions and propagated
-inshore.
+definition of the boundary condition. The tsunami source in this
+study is given as an initial condition, as opposed to a boundary
+condition to studies when the tsunami is generated by an undersea
+earthquake. Hence, the boundary conditions for this model will
+be Dirichlet boundary conditions, that is, all quantities are 
+given constant values. Here, stage and velocity at the boundaries
+are set to 0.
 
 Sea floor friction will generally provide resistance to the water flow
@@ -104 +103 @@
 \caption{Parameters used in ANUGA for the the submarine mass failure scenarios.}
 \begin{tabular}{|l|l|}\hline
-Model parameters  & Value \hline
-friction & 0
-minimum stored height & 0.1 m \hline
+Model parameters  & Value \\ \hline
+friction & 0 \\ \hline
+minimum stored height & 0.1 m \\ \hline
 \end{tabular}
 

anuga_work/production/sydney_2006/report/execsum.tex

@@ -1 @@
-This report is being provided to the Australian Tsunami Warning System Project by the 
-Risk Assessment Methods Project (RAMP). The purpose of this
-study is to determine the potential tsunami inundation extent generated
+The purpose of this
+study is to determine the potential of tsunami inundation generated
 from a range of historical and potential submarine mass failures off 
-the NSW coast.
+the NSW coast. The outputs of this study are directed to the Australian
+Tsunami Warning Project and NSW emergency managers.
 
 This report describes the modelling methodology (Section \ref{sec:methodology}),

anuga_work/production/sydney_2006/report/interpretation.tex

@@ -15 +15 @@
 
 \caption{Parameters used in ANUGA for the the submarine mass failure scenarios.}
-%\begin{tabular}{|l|l|l|l|}\hline
-%Parameter & Bulli & Shovel & Yacaaba \hline
-%Length & 16840m & 13500m & 7050m \hline
-%Width & 8860m  & 4350m & 3080m \hline
-%Thickness & 424m & 165m & 144m \hline
-%Density & 1.46 & 1.49 & 1.48 \hline
-%Water depth to centre of mass & 2087m & 968m & 1119m \hline
-%Bathymetric slope & 4 \degree & 4 \degree & 3 \degree \hline
-%Angular orientation & 126 \degree & 118 \degree & 133 \degree \hline
-%\end{tabular}
+\begin{tabular}{|l|l|l|l|}\hline
+Parameter & Bulli & Shovel & Yacaaba \\ \hline
+Length & 16840m & 13500m & 7050m \\ \hline
+Width & 8860m  & 4350m & 3080m \\ \hline
+Thickness & 424m & 165m & 144m \\ \hline
+Density & 1.46 & 1.49 & 1.48 \\ \hline
+Water depth to centre of mass & 2087m & 968m & 1119m \\ \hline
+Bathymetric slope & 4 \degree & 4 \degree & 3 \degree \\ \hline
+Angular orientation & 126 \degree & 118 \degree & 133 \degree \\ \hline
+\end{tabular}
 
 \end{center}

anuga_work/production/sydney_2006/report/modelling_methodology.tex

@@ -22 +22 @@
 mass failures modelled here occur much closer to the Australian coastline and do not require a 
 separate model for the deep water propagation. Here, we choose to model the submarine mass failure
-according to the work by Grilli and Watts which provides an inital surface elevation function
-which can then be propagated ashore. 
+according to the work by Watts and Grilli \cite{watts:smf} 
+which provides an inital surface elevation function
+which can then be propagated ashore. This model has been based on
+experimental work by these authors and allows an initial condition to be applied rather
+than modelling the mechanism of the slide. Therefore, this model is adequate for the purposes of this study
+to highlight the potential danger from a slide. Further validation work is required before
+this model is used for detailed impact analysis.
 
 To capture the \emph{impact} of a tsunami to a coastal community, we use ANUGA \cite{ON:modsim}.

anuga_work/production/sydney_2006/report/references.tex

@@ -14 +14 @@
 URL: http://www.mssanz.org.au/modsim05/papers/nielsen.pdf
 
+\bibitem{watts:smf} Watts, P., Grilli, S.T., Tappin, D.R. and Fryer, G.J. (2005)
+Tsunami generation by submarine
+mass failure Part II: Predictive equations and case studies, 
+Journal of Waterway, Port, Coastal, and Ocean Engineering, 131, 298 - 310
+
 \bibitem{antt:06} Australian National Tide Tables 2006:
 Australia, Papua New Guinea, Solomon Islands and Antarctica and East Timor.

anuga_work/production/sydney_2006/report/smfmodel.tex

@@ -1 @@
-Slide nomenclature
+
 
 \begin{table}
 \begin{center}
-\begin{tabular}{|l|l}\hline
-Variable name & Quantity \hline
-$b$ & length \hline
-$w$ & width \hline
-$T$ & thickness \hline
-$\gamma$ & density \hline
-$d$ & water depth to centre of mass
-$\theta$ & bathymetric slope\hline
-$\psi$ & angular orientaion \hline
-$C_d$ & drag coefficient \hline
-$C_m$ & added mass coefficient \hline
+\begin{tabular}{|l|l|}\hline
+Variable name & Quantity \\ \hline
+$b$ & length \\ \hline
+$w$ & width \\ \hline
+$T$ & thickness \\ \hline
+$\gamma$ & density \\ \hline
+$d$ & water depth to centre of mass \\ \hline
+$\theta$ & bathymetric slope \\ \hline
+$\psi$ & angular orientaion \\ \hline
+$C_d$ & drag coefficient \\ \hline
+$C_m$ & added mass coefficient \\ \hline
 \end{tabular}
 \end{table}