NCSU-CHAZ / Sunny-Day-Flooding

Student research related to the Sunny Day Flooding Project
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3Di modeling #22

Open ththelen opened 1 year ago

ththelen commented 1 year ago

Hai @caseydietrich and @anardek here is an update from my week in 3Di country:

The training was very useful. I feel much more confident in my understanding of model physics and setup. Thanks to the training and helpful colleagues, I made more model development progress in the last 3 days than I did in the two months of working on my own.

The latest version of the model that I have set up is snipped below. The boundaries circled in red are water level boundary conditions. Per Dr. Volp's recommendation, we are now including the tidal inlet in the model so there is no artificial disconnect between the ocean and the intracoastal. There are some additional options that Dr. Volp suggested if we think we need to tweak these BC further for a better representation (discharge BC in Snow's Cut and a shore parallel BC along the ocean), but I want to review the first round of results before doing that extra work. I also have only setup the drain network at one of the Canal Drive intersections so far. Adding in the rest of the sewer system is probably my next step.

Image

Overall, I am quite happy with where the model is at. The version I have right now runs a 10 day simulation in about an hour and (from the eye test) seems to be a reasonable representation of flooding on Canal. A closer inspection of water level results in the coming weeks will allow me to put some numbers to this assessment. If there are any specifics from this week that you would like me to cover at our next check-in meeting, please let me know.

anardek commented 1 year ago

That’s great Thomas! So glad to hear it was useful. I recall Casey wanting the inlet hydrodynamics to be resolved by ADCIRC, and the BC inside the intracoastal. I think I would like to know more about the justification for changing the BC to a long shore parallel BC.

On Sat, Dec 3, 2022 at 2:05 AM Thomas Thelen @.***> wrote:

Hai @caseydietrich https://github.com/caseydietrich and @anardek https://github.com/anardek here is an update from my week in 3Di country:

The training was very useful. I feel much more confident in my understanding of model physics and setup. Thanks to the training and helpful colleagues, I made more model development progress in the last 3 days than I did in the two months of working on my own.

The latest version of the model that I have set up is snipped below. The boundaries circled in red are water level boundary conditions. Per Dr. Volp's recommendation, we are now including the tidal inlet in the model so there is no artificial disconnect between the ocean and the intracoastal. There are some additional options that Dr. Volp suggested if we think we need to tweak these BC further for a better representation (discharge BC in Snow's Cut and a shore parallel BC along the ocean), but I want to review the first round of results before doing that extra work. I also have only setup the drain network at one of the Canal Drive intersections so far. Adding in the rest of the sewer system is probably my next step.

[image: Image] https://user-images.githubusercontent.com/89156971/205320398-61c0449b-dc71-4d94-ac5a-81dba5ed75d7.png

Overall, I am quite happy with where the model is at. The version I have right now runs a 10 day simulation in about an hour and (from the eye test) seems to be a reasonable representation of flooding on Canal. A closer inspection of water level results in the coming weeks will allow me to put some numbers to this assessment. If there are any specifics from this week that you would like me to cover at our next check-in meeting, please let me know.

— Reply to this email directly, view it on GitHub https://github.com/NCSU-CHAZ/Sunny-Day-Flooding/issues/22#issuecomment-1335383652, or unsubscribe https://github.com/notifications/unsubscribe-auth/ANXYL52H4YZNQ5EYTUNR67LWLIF4VANCNFSM6AAAAAASR7ZDJM . You are receiving this because you were mentioned.Message ID: @.***>

ththelen commented 1 year ago

@anardek (cc: @caseydietrich) we can certainly talk about the reasoning behind a shore parallel BC in our next meeting.

Including the inlet in the 3Di domain would not be a substitute for accurately resolving the inlet hydrodynamics. It is still critical that we get the inlet hydrodynamics right in ADCIRC so the time series we are using to force 3Di along the intracoastal and at Snow's Cut are accurate. The motivation for moving the boundary condition is to more realistically simulate flooding coming from the ocean side vs the yacht basin side. The thinking here is that forcing the ocean and yacht basin water levels with two different boundaries that do not interact is rather artificial since it removes the flow patterns that result from this interaction. I'm happy to discuss further on Wednesday.

ththelen commented 1 year ago

Latest 3Di model snipped here for meeting with KA. 3 stormwater pipes in model (Oystershell, Clamshell, Starfish) Mesh resolutions Ocean cells: 192 m Far intracoastal and land outside: 24 m Near intracoastal, Canal Dr and adjacent beach: 12 m

Image Zoomed in

Image Full domain

ththelen commented 1 year ago

@anardek and I discussed the temporal resolution for writing 3Di results a couple weeks ago. We decided to try writing results every 1 minute as a first pass. The results files from writing results every 1 min are ~16 GB for a 10 day run. I think this is too large, and will try writing results every 6 min (same as temporal resolution as our SuDS measurements) instead.

anardek commented 1 year ago

Sounds good!

On Tue, Mar 28, 2023 at 9:48 AM Thomas Thelen @.***> wrote:

@anardek https://github.com/anardek and I discussed the temporal resolution for writing 3Di results a couple weeks ago. We decided to try writing results every 1 minute as a first pass. The results files from writing results every 1 min are ~16 GB for a 10 day run. I think this is too large, and will try writing results every 6 min (same as temporal resolution as our SuDS measurements) instead.

— Reply to this email directly, view it on GitHub https://github.com/NCSU-CHAZ/Sunny-Day-Flooding/issues/22#issuecomment-1486926323, or unsubscribe https://github.com/notifications/unsubscribe-auth/ANXYL54YDIORHKGYJGXZW63W6LT4TANCNFSM6AAAAAASR7ZDJM . You are receiving this because you were mentioned.Message ID: @.***>