Willie Wyk

Try using a "Remote Desktop connection". I am able to work comfortably from home by logging in remotely to my office pc where the license is running.

I have generated a directional wave spectrum consisting of a swell component and a wind sea component, the two being 90 degrees apart.

I have 2 wave genration lines forming a 90degree angle.

Using the Mike21 toolbox, I'm generating random waves using my user defined directional spectrum.

However the toolbox still requires a Main Wave direction and maximum deviation from main direction. This confuses me slightly because my directional spectrum already contains the directional component.

For now, I have used the average wave direction as the main wave direction (i.e. 45 degrees between the swell and wind sea) and specified the max deviation as 45 degrees.

Results look believable but can someone put my mind at ease if this has been the right approach?

thanks and regards

Just to report back, my problem has been solved with the installation of the MIKE21 SP2. Thanks to Niels Hvam for your assistance.

Further to my previous post I have attached sample files to illustrate my problem. Any input will be appreciated!

The Mike21 Toolbox file contains a setup called "whitenoise".

It uses a user spectrum called "whitenoise2.dfs0" (which is accepted according to the constraints), but upon execution an error is given as per "white_noise.log".

The other dfs0 file "whitenoise.dfs0" has the format I would have expected to be sufficient as input but fails the constraint check in the toolbox.

Good day

I am having trouble setting up and using a user spectrum as input for random wave generation.

What is the usual process? I have created a spectrum with energy values of 5m²/hz from .0001 to 0.01hz (10000 to 100s)

It takes a bit of effort to get this dfs0 file in the right format for the Random wave generator to accept, and once successful, it reports an error during processing. Please assist.

Thanks and regards
Willie