Flow around Groynes Modelling in Different Numerical Schemes.

10 pages•Published: September 20, 2018

Quang Binh Nguyen, Ngoc Duong Vo and Philippe Gourbesville

Abstract

There is no need for further augment about the performance of numerical model in representing the hydraulic flow regime. Even if the mathematics and computer science have obtained many considerable progresses, there have not been yet uptil now a numerical solution that is considered comprehensively and perfectly the fluid mechanics due to its complication. Therefore, lot of numerical schemes have been developed relied on different approaches: Advection schemes, diffusion schemes, turbulence models. Model appropriate selection is considered as a key factor to sovle successfully a real problem. With the aims of evaluating the impact of different numerical schemes, this study uses TELEMAC 3D model, a product of EDF, to simulate the hydraulic regime in river. Relying on the advection schemes and turbulence models, five scenarios are organized in TELEMAC 3D for representing the hydraulic flow in a segment of the Waal, Netherlands. The modeling result is compared with the research of Mohamed F.M Yossef and Huid J. de Vriend (2011) in aspect of horizontal velocity distribution, vertical velocity distribution, flow stage. The comparison shows that there is a significant uncertainty in using different numerical schemes for flow stage modeling. The paper is expected to provide an insight view about using the computational model for hydraulic research and to be useful for studying the dynamics of flow stage by hydrodynamics simulation.

Keyphrases: advection scheme, flow stage, presure, telemac 3d, turbulance model, turbulence intensity, waal river

In: Goffredo La Loggia, Gabriele Freni, Valeria Puleo and Mauro De Marchis (editors). HIC 2018. 13th International Conference on Hydroinformatics, vol 3, pages 1513-1522.

Links:	https://easychair.org/publications/paper/zvbV
	https://doi.org/10.29007/2nlb

BibTeX entry

@inproceedings{HIC2018:Flow_around_Groynes_Modelling,
  author    = {Quang Binh Nguyen and Ngoc Duong Vo and Philippe Gourbesville},
  title     = {Flow around Groynes Modelling in Different Numerical Schemes.},
  booktitle = {HIC 2018. 13th International Conference on Hydroinformatics},
  editor    = {Goffredo La Loggia and Gabriele Freni and Valeria Puleo and Mauro De Marchis},
  series    = {EPiC Series in Engineering},
  volume    = {3},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2516-2330},
  url       = {/publications/paper/zvbV},
  doi       = {10.29007/2nlb},
  pages     = {1513-1522},
  year      = {2018}}

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