@article{fdi:010094849, title = {{A}ssessing 3{D} and 2{D} hydrodynamic models for urban flood simulations : a district scale analysis with experimental street-level discharge, height and velocity}, author = {{D}ellinger, {G}. and {G}uiot, {L}. and {P}ujol, {L}eo and {L}awniczak, {F}. and {F}rancois, {P}. and {F}inaud-{G}uyot, {P}. and {V}azquez, {J}. and {G}arambois, {P}. {A}.}, editor = {}, language = {{ENG}}, abstract = {{U}rban flood modeling is essential for understanding physical phenomena and enhancing flood forecasting. {T}he relevance of these numerical tools must be assessed with flow measurements which are sparse for real floods. {T}his article assesses the capability of state-of-the-art 2{D} (with or without the k-epsilon turbulence model) and 3{D} (with the k-omega {SST} turbulence model) numerical models in reproducing the characteristics of urban flood flows within a realistic street network using an experimental dataset. {T}he results show that all models can predict the flow discharge distribution and flow depths inside the district. {T}he 3{D} model is always slightly more accurate, especially in zones where the flow is strongly perturbed. {T}he comparison of numerical and experimental velocity profiles across streets highlights the need for a turbulence model to represent recirculation areas of finite length after crossroads and obtain a more realistic velocity field and water elevation profile.}, keywords = {{U}rban flood ; {IC}ube experimental dataset ; numerical modeling ; benchmark of hydrodynamic models}, booktitle = {}, journal = {{U}rban {W}ater {J}ournal}, volume = {[{E}arly access]}, numero = {}, pages = {[27 p.]}, ISSN = {1573-062{X}}, year = {2025}, DOI = {10.1080/1573062x.2025.2531460}, URL = {https://www.documentation.ird.fr/hor/fdi:010094849}, }