Changeset 4896

Timestamp:

Dec 24, 2007, 12:56:24 PM (16 years ago)

Author:

duncan

Message:

Working on report

Files:

• anuga_validation/uq_friction_2007/project.py (modified) (1 diff)
• anuga_work/publications/anuga_2007/anuga_validation.tex (modified) (2 diffs)

anuga_validation/uq_friction_2007/project.py

@@ -4 +4 @@
 
 mesh_filename = "mesh.tsh"
-depth_filename = "zz_test0.0_depth.csv"
-depth_filename2 = "zz_test0.01_depth.csv"
+depth_filename = "zz0.0_depth.csv"
+depth_filename2 = "zz0.01_depth.csv"
 experiment_depth_filename =  "fromD_0.2_Slope0.05_x0.2-0.6_clean.csv"
 

anuga_work/publications/anuga_2007/anuga_validation.tex

@@ -484 +484 @@
 complex 3D beach is a positive first step in validating the \ANUGA{}
 modelling capability. 
-
-
+ 
+% Validation UQ friction
+% at X:\anuga_validation\uq_friction_2007
+% run run_dam.py to create sww file and .csv files
+% run plot.py to create graphs, and move them here
+\begin{figure}[htbp]
+\centerline{\includegraphics[width=4in]{uq-friction-depth.eps}}
+\caption{Comparison of wave tank and \ANUGA{} water height at .4 m
+  from the gate, simulated using a Mannings friction of 0.0 and 0.1.}\label{fig:uq-friction-depth}
+\end{figure}
+
+ Friction is modelled in ANUGA using the Manning's friction
+ model. Validation of this model was carried out by comparing results
+ from ANUGA against experimental results from flume wave tanks. The
+experiments were carried out at the Gordon McKay Hydraulics Laboratory
+at St Lucia, University of Queensland.
+ 
+ 
 % Validation UQ flume
 % at X:\anuga_validation\uq_flume_2007
@@ -499 +515 @@
 \centerline{\includegraphics[width=4in]{uq-flume-velocity.eps}}
 \caption{Comparison of wave tank and \ANUGA{} water velocity at .45 m
-  from the gate}\label{fig:uq-flume-depth}
+  from the gate}\label{fig:uq-flume-velocity}
 \end{figure}
 
 Flume data from the University of Queensland has also been used for
-validating \ANUGA{}.  The experiments were carried out at the Gordon
-McKay Hydraulics Laboratory at St Lucia.  The Flume was set up for
-Dam-break experiments, having a water reservior at one end.  The flume
-was glass-sided, 3m long, 0.4m in wide, and 0.4m deep (check
-depth), with a PVC bottom. The reservoir in the flume was 0.75m long.
-For this experiment the reservoir water was 0.2m deep. At time zero
-the reservoir gate is opened and the water flows into the other side
-of the flume.
-
-
-% Validation UQ friction
-% at X:\anuga_validation\uq_friction_2007
-% run run_dam.py to create sww file and .csv files
-% run plot.py to create graphs, and move them here
-\begin{figure}[htbp]
-\centerline{\includegraphics[width=4in]{uq-friction-depth.eps}}
-\caption{Comparison of wave tank and \ANUGA{} water height at .4 m
-  from the gate, simulated using a Mannings friction of 0.0 and 0.1.}\label{fig:uq-friction-depth}
-\end{figure}
+validating the water height and velocity predicted by \ANUGA{}.  The
+Flume was set up for Dam-break experiments, having a water reservior
+at one end.  The flume was glass-sided, 3m long, 0.4m in wide, and
+0.4m deep, with a PVC bottom. The reservoir in the flume was 0.75m
+long.  For this experiment the reservoir water was 0.2m deep. At time
+zero the reservoir gate is opened and the water flows into the other
+side of the flume.  To accurately model the bed surface a Manning's
+friction value of 0.01, representing PVC was used.
+
+% Neale, L.C. and R.E. Price.  Flow characteristics of PVC sewer pipe.
+% Journal of the Sanitary Engineering Division, Div. Proc 90SA3, ASCE.
+% pp. 109-129.  1964.
+
+Acoustic displacement sensors that produced a voltage that changed
+with the water depth was positioned 0.4m from the reservoir gate. The
+water velocity was measured with an Acoustic Doppler Velocimeter 0.45m
+from the reservoir gate.  This sensor only produced reliable results 4
+seconds after the reservoir gate opened, due to limitations of the sensor.
+
+Figure~\ref{fig:uq-flume-depth} show that ANUGA predicts the actual
+water depth very well, with the exception of the fluid tip-region. The
+water velocity is also predicted accurately. 
+
 
 \section{Conclusions}