Changeset 4896


Ignore:
Timestamp:
Dec 24, 2007, 12:56:24 PM (17 years ago)
Author:
duncan
Message:

Working on report

Files:
2 edited

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  • anuga_validation/uq_friction_2007/project.py

    r4895 r4896  
    44
    55mesh_filename = "mesh.tsh"
    6 depth_filename = "zz_test0.0_depth.csv"
    7 depth_filename2 = "zz_test0.01_depth.csv"
     6depth_filename = "zz0.0_depth.csv"
     7depth_filename2 = "zz0.01_depth.csv"
    88experiment_depth_filename =  "fromD_0.2_Slope0.05_x0.2-0.6_clean.csv"
    99
  • anuga_work/publications/anuga_2007/anuga_validation.tex

    r4895 r4896  
    484484complex 3D beach is a positive first step in validating the \ANUGA{}
    485485modelling capability.
    486 
    487 
     486 
     487% Validation UQ friction
     488% at X:\anuga_validation\uq_friction_2007
     489% run run_dam.py to create sww file and .csv files
     490% run plot.py to create graphs, and move them here
     491\begin{figure}[htbp]
     492\centerline{\includegraphics[width=4in]{uq-friction-depth.eps}}
     493\caption{Comparison of wave tank and \ANUGA{} water height at .4 m
     494  from the gate, simulated using a Mannings friction of 0.0 and 0.1.}\label{fig:uq-friction-depth}
     495\end{figure}
     496
     497 Friction is modelled in ANUGA using the Manning's friction
     498 model. Validation of this model was carried out by comparing results
     499 from ANUGA against experimental results from flume wave tanks. The
     500experiments were carried out at the Gordon McKay Hydraulics Laboratory
     501at St Lucia, University of Queensland.
     502 
     503 
    488504% Validation UQ flume
    489505% at X:\anuga_validation\uq_flume_2007
     
    499515\centerline{\includegraphics[width=4in]{uq-flume-velocity.eps}}
    500516\caption{Comparison of wave tank and \ANUGA{} water velocity at .45 m
    501   from the gate}\label{fig:uq-flume-depth}
     517  from the gate}\label{fig:uq-flume-velocity}
    502518\end{figure}
    503519
    504520Flume data from the University of Queensland has also been used for
    505 validating \ANUGA{}.  The experiments were carried out at the Gordon
    506 McKay Hydraulics Laboratory at St Lucia.  The Flume was set up for
    507 Dam-break experiments, having a water reservior at one end.  The flume
    508 was glass-sided, 3m long, 0.4m in wide, and 0.4m deep (check
    509 depth), with a PVC bottom. The reservoir in the flume was 0.75m long.
    510 For this experiment the reservoir water was 0.2m deep. At time zero
    511 the reservoir gate is opened and the water flows into the other side
    512 of the flume.
    513 
    514 
    515 % Validation UQ friction
    516 % at X:\anuga_validation\uq_friction_2007
    517 % run run_dam.py to create sww file and .csv files
    518 % run plot.py to create graphs, and move them here
    519 \begin{figure}[htbp]
    520 \centerline{\includegraphics[width=4in]{uq-friction-depth.eps}}
    521 \caption{Comparison of wave tank and \ANUGA{} water height at .4 m
    522   from the gate, simulated using a Mannings friction of 0.0 and 0.1.}\label{fig:uq-friction-depth}
    523 \end{figure}
     521validating the water height and velocity predicted by \ANUGA{}.  The
     522Flume was set up for Dam-break experiments, having a water reservior
     523at one end.  The flume was glass-sided, 3m long, 0.4m in wide, and
     5240.4m deep, with a PVC bottom. The reservoir in the flume was 0.75m
     525long.  For this experiment the reservoir water was 0.2m deep. At time
     526zero the reservoir gate is opened and the water flows into the other
     527side of the flume.  To accurately model the bed surface a Manning's
     528friction value of 0.01, representing PVC was used.
     529
     530% Neale, L.C. and R.E. Price.  Flow characteristics of PVC sewer pipe.
     531% Journal of the Sanitary Engineering Division, Div. Proc 90SA3, ASCE.
     532% pp. 109-129.  1964.
     533
     534Acoustic displacement sensors that produced a voltage that changed
     535with the water depth was positioned 0.4m from the reservoir gate. The
     536water velocity was measured with an Acoustic Doppler Velocimeter 0.45m
     537from the reservoir gate.  This sensor only produced reliable results 4
     538seconds after the reservoir gate opened, due to limitations of the sensor.
     539
     540Figure~\ref{fig:uq-flume-depth} show that ANUGA predicts the actual
     541water depth very well, with the exception of the fluid tip-region. The
     542water velocity is also predicted accurately.
     543
    524544
    525545\section{Conclusions}
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