000163940 001__ 163940
000163940 005__ 20251113160752.0
000163940 0247_ $$2doi$$a10.1063/5.0293276
000163940 0248_ $$2sideral$$a146106
000163940 037__ $$aART-2025-146106
000163940 041__ $$aeng
000163940 100__ $$0(orcid)0000-0003-4673-9073$$aMartínez-Aranda, Sergio$$uUniversidad de Zaragoza
000163940 245__ $$aExperimental study of the viscoplastic dambreak wave dynamics and the impact force exerted on rigid structures
000163940 260__ $$c2025
000163940 5203_ $$aSurface sediment-laden flows, such as landslides, Debris, and mud flows or hyperconcentrated fast floods, are gravity-driven transient processes, usually moving over steep slopes, with high solid concentrations and complex non-Newtonian behavior. These geophysical flows involve the mobilization of large masses of water, sediments, and solid materials. Better risk evaluation tools and more effective protection measures are required to mitigate their destructive potential for facilities and population. In this sense, reliable experimental data are essential to validate those models. This work presents a novel set of non-intrusive laboratory measurements for a viscoplastic dambreak wave moving over an inclined slope and impacting on an obstacle. The force exerted on the obstacle, the transient flow depth, and the free surface velocity are provided for five different experiments of increasing fluid mass in the reservoir. The measured data allowed us to relate the force signal evolution to the flow dynamics around the obstacle. For low mass experiments, a force signal with two peaks, P1 and P2, respectively, was measured. As the involved fluid mass increased, a sharp third force peak P3 appeared and became as high as P1 and P2. The first force peak P1 was related to the momentum dissipation, whereas the second P2 and the third P3 peaks were induced by the fluid pressure upstream of the obstacle. Moreover, for high mass experiments, a sudden force drop was observed between the peaks P2 and P3, caused by the appearance of marked non-hydrostatic pressures upstream of the obstacle. This experimental dataset provides enough temporal–spatial resolution to characterize properly the impact of non-Newtonian shock waves on structures and can work as a reliable benchmark test for computational models.
000163940 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T32-23R$$9info:eu-repo/grantAgreement/ES/MICINN/PID2022-137334NB-I00
000163940 540__ $$9info:eu-repo/semantics/closedAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000163940 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000163940 700__ $$0(orcid)0009-0005-1896-753X$$aSegovia-Burillo, Jose$$uUniversidad de Zaragoza
000163940 700__ $$0(orcid)0000-0003-4501-8346$$aGarcía-Palacín, Ignacio$$uUniversidad de Zaragoza
000163940 700__ $$0(orcid)0000-0001-8674-1042$$aGarcía-Navarro, Pilar$$uUniversidad de Zaragoza
000163940 7102_ $$15001$$2600$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Mecánica de Fluidos
000163940 773__ $$g37, 0293276 (2025), [20 pp.]$$pPhys. fluids$$tPhysics of Fluids$$x1070-6631
000163940 8564_ $$s9843500$$uhttps://zaguan.unizar.es/record/163940/files/texto_completo.pdf$$yVersión publicada
000163940 8564_ $$s744151$$uhttps://zaguan.unizar.es/record/163940/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000163940 909CO $$ooai:zaguan.unizar.es:163940$$particulos$$pdriver
000163940 951__ $$a2025-11-13-14:58:14
000163940 980__ $$aARTICLE