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About ketaki27

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  • Birthday 08/27/1989

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  1. Hi Pavlina, Thanks for the response, I am using the latest version 2018-08-AA build, Sorry for the mistype. The files are quite huge. Is there a sharing network through which I can share the files?
  2. Hi, I am using the 2018_03_AA build version of TUFLOW to GIS utility to extract depth,level and velocity .asc files from XMDF. But only level and velocity grids are being created. Is there a bug in the build or am I missing something.
  3. Hi, I created a difference grid using asc to asc.exe utility. Wiki says that if any of the input files are having NULL values, then the difference grid will take NULL value. Thats not right is it? The difference grid should not return NULL right. While comparing Baseline scenarios with proposed scenarios, it gets difficult to justify the existence of NULL values, when there has to be either a postive or negative value.
  4. Hi Stephen, Thank you for your thoughts on this. I have found a way out, we can now digitize triangles using the 1D_WLL lines at the junction, which avoids any visual representation of gaps in flood maps. Refer to section 9.5.4 in TUFLOW 2016 manual. Regards, Ketaki
  5. Hi, when modelling in ISIS-TUFLOW, we join the tributary to the main channel using junction node. Now my query is when we represent these junctions in 2D , by giving a break in HX lines, there are gaps seen in flood maps at the junction area. Is there a better way to represent the junctions in 2D, so that the gaps can be avoided and smooth flow in the river can be represented?
  6. Hi, Is it possible to model super elevations around the bends in channels and also the bend losses in TUFLOW??? Thanks, Ketaki
  7. Hi All, Thank you for the guidance. The 2D model is running in stable conditions. The issue was with initial stage going beyond the bank elevations at some Cross-sections. So extended the cross-section data, took care of the wobble at the initial time step =0, and it all works fine now
  8. Hi Philip, I have emailed the .tlf file at the given location. There are two .tlf files, one is the case where the model fails to start the computations and the other is where the model runs for 2% at dz=0.8 yes, its TUFLOW-ISIS(Flood -Mapper) model. Hope, this helps, and if required I can even send the model files. Hi PHA, Thanks for the various options, but I have tried them all, and still am unable to get the model to kick-off. The model ran for about 0.4 hours before it stopped.
  9. Hi , I am running a TUFLOW 1D/2D model for a river with tributaries of order 3. The model runs stably at timestep 0.2 when run in 1D domain alone and is free from any 2D file errors or warnings but fails to start the simulation when linked with 2D domain. Options tried : 1. Tried to reduce the initial conditions so that the initial stage is within the banks 2. Tried increasing the dz value in _2d_Zsh_banks..file to increase the elevation at the banks ranging from values 0.1 to 1, the model did run for about 2% at dz value 0.8 but stopped after that. 3. Added different flag combinations for HX lines- such as '2', 'z' 's'. None of the above trials have worked. My confusion is when the model runs in 1D domain, it has to run within the 2D domain also. Am using lidar data as grid to extract zpts with a resolution of about 2 m, hence used the cell size of 1m. I have already crossed the deadline for project submission and really need help in this! Anticipating a quick response Regards, ketaki MB_WS_2D_UPDATED0_006.bmp
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