Yvonne

Dear all,

I am having a trouble with MIKE3 that my simulated flow velocity is significantly smaller than measured. Just wondering, which parameters should I adjust in order to increase flow velocity?

Hi,

I am looking for the scientific document for MIKE11.
I have already checked the setup folder for DHI, but there are only scientific documents for MIKE3 and MIKE21.

Does anyone can tell me how to get this document?

Thanks in advanced


Yvonne

I have figured out the max depth generally is determined by the points on marker1/3 in the cross section editor.

Hi Torben,

Thanks for your reply. It is very helpful.

When I was running the model, it kept sending me the warning and error messages.

The Warning No.144: Steady State Initial conditions calculation: Water Level at xxx exceeded max depth criteria
Error No.25: At the h-point xxx, the water depth greater than 4 times max depth

Both of them have mentioned the term of 'max depth'.

My question is how MIKE 11 defines and calculates 'max depth' for each cross section? Does the 'max depth' , to some extent, relate to Courant Number or initial water depth?
To see the 'max depth' related to the initial water depth or not,  I changed my initial water depth (global value) to different values, but the max depth criteria for each cross section didn't change at all. Hence, the max depth is nothing to do with the value of initial water depth.


Another thing is, the training material from year 2009 says the Courant Number must be [b]less than 1[/b] for the model stability. But when I checked the manual of MIKE 11 (version 2012), on page 26, it says ' MIKE 11 applies a 6-point Abbott scheme for solving the equation which does not have the typical Cournat number below one demand. Good results are obtained up to Cournat numbers [b]as high as 10-20[/b]'. I am just so confused about this conflict.

I really appreciate if someone can reply me.


Best Wishes
Yvonne

Hi Everyone,

I am working on cross section editor.
I have used the MIKE 11 GIS and DEM data to generate the cross-section file.
But when I looked at it, the z values in tabular view confused me. The values of z are approximately 12 meter for each cross section. In fact, my study area is a very shallow river and the water depth is supposed to be around 5 meter.

What's the z values represent? Does it represent the water depth or other thing else?

Looking forward to hearing your replies.
Thanks in advance.


Regards
Yvonne