Dataset of turbulent flow over interacting barchan dunes

Autor(es)

Alvarez, Jimmy G. ; Borges, Danilo S. ; Franklin, Erick M.

• Tipo de documento: Artigo Científico
• Fonte: DATA IN BRIEF; v. 52, p. 7-pg., 2023-12-22.

Resumo

Barchans are dunes commonly found in dune fields on Earth, Mars and other celestial bodies, where they can interact with each other. This article concerns experimental data for the flow over subaqueous barchans that are either isolated or interacting with each other. The experiments were carried out in a transparent channel of rectangular cross section in which turbulent water flows were imposed over either one single or a pair of barchans. The instantaneous flow fields were measured by using a low-frequency PIV (particle image velocimetry) and high-frequency PTV (particle tracking velocimetry). From the PIV and PTV data, the mean flow, trajectories, and second-order moments were computed, which are included in the datasets described in this paper, together with raw data (images), instantaneous fields, and scripts to process them. The datasets can be reused for benchmarking or for processing new images generated by other research groups. (c) 2023 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/ ) (AU)

• Processo FAPESP: 18/14981-7 - Modelagem de escoamentos granulares densos: experimentos, simulações numéricas e análises de estabilidade
• Beneficiário: Erick de Moraes Franklin
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores - Fase 2
• Processo FAPESP: 20/15624-3 - Escoamento turbulento sobre um leito granular deformado: determinação experimental
• Beneficiário: Jimmy Gabriel Alvarez Zambrano
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 22/01758-3 - Escoamento turbulento em meio granular denso: alterações na estrutura do escoamento
• Beneficiário: Danilo da Silva Borges
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado