Posted Wed, 17 Jun 2020 03:53:47 GMT by Jimin Park
Hi all, noob user for the MIKE series software.

There weren't that many examples or tutorials to study with available online besides the step by step guides (which by the way is very helpful in most ways but some of them are not updated and also alittle vague on details) but managed to run a 21fm file and got myself a dfsu file.

I was hoping to display the velocity at each time step for all the nodes in my domain, something that might look like the image in the attatchment. I have a feeling that this could be the with the result viewer tool but have no clue how this can be achieved?

If any one could guide me on how i might be able to display the velocities and also If you have any study materials (besides the step by step guides) that is available on-line, will be much appreciated.

Thanks

========================================================================================
Edit:

So, im not sure if this is the correct way however but I converted dfsu to a reasonably sized grid files where I can kinda achieve what I wanted to do in the tabular view but i'm guessing there is an easier and more appropriate way. Also converting into grid files takes very long and a lot of computing powers...
Posted Wed, 17 Jun 2020 05:55:33 GMT by Sebastian Gürke M. Sc.
Hey,

[quote author=bakjee link=topic=21986.msg29063#msg29063 date=1592366027]

I was hoping to display the velocity at each time step for all the nodes in my domain, something that might look like the image in the attatchment. I have a feeling that this could be the with the result viewer tool but have no clue how this can be achieved?

(...)

Edit:

So, im not sure if this is the correct way however but I converted dfsu to a reasonably sized grid files where I can kinda achieve what I wanted to do in the tabular view but i'm guessing there is an easier and more appropriate way. Also converting into grid files takes very long and a lot of computing powers...
[/quote]

I think your solution is one way to go, but as you mentioned it doesn't show the velocity at the nodes. As far as i know, there is no build-in function to achieve this, since MIKE21FM uses an Finite Volume approach, which means that the values are calculated at the center of the mesh elements. In case you have Matlab you can check the DHI-Matlab-Toolbox.

Another way is MIKE2SHP (Mike Zero Toolbox), which converts the dfsu-file to a shapefile. But due to the the Finite Volume Approach and the way MIKE2SHP works, the result only shows the velocity for each element and not at the nodes.

Greetings,
Sebastian
Posted Wed, 17 Jun 2020 06:34:07 GMT by Jimin Park
Thank you Sebastian for your kind reply,

The way that I am doing things is a process since I need to re-assign all the xyz co-ordinates accordingly then re-load the newly assigned

data onto a plotting software hence I am quite keen on trying this MATLAB toolbox.

I actually do have a copy of an academic version of MATLAB, would this be sufficient enough to run the DHI MATLAB TOOLBOX?

Also tried googling the said toolbox and found a Github page for DHI, is this where I should be able to get all the necessary info?

Thank you

Regards

You must be signed in to post in this forum.