Introductory Course Delft3D-QUICKIN

Bathymetry schematisation

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General strategy

generation, manipulation of FLOW bathymetries

stepwise bathymetry generation• Use a polygon to select your working area. All operations apply

to the area inside this polygon

• high quality data (samples) first

• various interpolation options

• various viewing options

• bathymetry manipulation

generation of non-uniform roughness or other parameter

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QUICKIN - File

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QUICKIN - Operations

Dependent on resolution of sample points versus grid cell size

A method to fill in depths if samples are insufficient

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Example of detailed coverage

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Example of poor coverage

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QUICKIN – View (1)

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QUICKIN – View (2)

Set Time step for Courant numbers in Settings – General

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QUICKIN – Settings (1)

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QUICKIN – Edit (1)

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QUICKIN – Edit – Shortcut keys

C change sample value

D delete (polygon, depth or sample) point

E* delete polygon

I insert (polygon or sample) point

R replace (polygon or sample) point

X* break up polygon

* keep pressed

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QUICKIN - AddSubDel

To transfer depths to another grid

To use Operation – Triangulation

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QUICKIN – Settings (2)

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Example (overall)

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Example (detail)

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Generation of other attributes files

• roughness file

• dry points, thin dams, observation points, dredge and dump areas

Also with Visualisation Area FLOW-GUI

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Hands-on Delft3D-QUICKIN

•build the bathymetry by working with sub-areas

•start with ‘best’ data first

•grid cell averaging when resolution samples > resolution cells

• triangulation when resolution samples < resolution grid cells

• fill in gaps with diffusion or triangulation (first copy depth to sample points)

•save intermediate bathymetries