We measured experimentally the propagation of water waves passing an abrupt change in depth. By using the Fourier Transform Profilometry technique, we studied the generation and propagation of free and bound waves in shallow water and the influence of viscous effects and surface tension in the propagation of higher order terms. 

Publications:

• Monsalve, E., Maurel, A., Pagneux, V., & Petitjeans, P. (2015). Propagation of nonlinear waves passing over submerged step. Physics Procedia, 70, 863-866. doi.org/10.1016/j.phpro.2015.08.177 

• Raoult, C., Yates, M., Benoit, M., & Monsalve, E. (2016) Modeling Viscous Effects In A Fully Nonlinear And Dispersive Potential Wave Model. 15èmes Journées de l'hydrodyamique pdf file 

• Monsalve, E.; Maurel, A.; Pagneux, V.; Petitjeans, P. (2022) Nonlinear Waves Passing over Rectangular Obstacles: Multimodal Method and Experimental Validation. Fluids, 7, 145. doi.org/10.3390/fluids7050145 

Surface wave dynamics in small scale configurations can be substantially modified by edge constraints, in particular a pinned contact line, when the force it exerts is non-negligible with respect to gravity and surface tension. This work develops a hybrid approach, which combines a theoretical model with a complete space-time resolved measurement of the surface deformation and static menisci, allowing an accurate estimation of the contribution of a pinned contact line to shift the dispersion relation towards faster phase velocities. 

Publications:

• Monsalve E., Maurel A., Pagneux V., and Petitjeans P. (2022)  Space-time-resolved measurements of the effect of pinned contact line on the dispersion relation of water waves Phys. Rev. Fluids 7, 014802  doi.org/10.1103/PhysRevFluids.7.014802    arxiv

Since november 2019 I am working in the experimental study of inertial waves generated in a rotating fluid. Via PIV measurements, the instability of waves due to triadic resonances and the interaction of waves in a turbulent regime is analyzed.  (Link)   

Publications:

• Monsalve, E., Brunet, M., Gallet, B., & Cortet, P. P. (2020). Quantitative experimental observation of weak inertial-wave turbulence. Phys. Rev. Lett. 125, 254502. doi.org/10.1103/PhysRevLett.125.254502    arxiv  (Selected as Editor's suggestions)

• Mora D., Monsalve E, Brunet M., Dauxois T. & Cortet P.-P. Three-dimensionality of the triadic resonance instability of a plane inertial wave. Phys. Rev. Fluids 6, 074801 doi.org/10.1103/PhysRevFluids.6.074801   arxiv 

• Article Viewpoint in Physics Magazine about our work: Verifying Weak Turbulence Theory by Sergey Nazarenko

We study the nonlinear interacion between an ensemble of internal waves in a axisymmetric and homogeneous configuration.  The presence of eigenmodes of the experimental domain was specially analyzed.

Publications:

• N. Lanchon, D. O. Mora, E. Monsalve, and P.-P. Cortet (2022) Internal wave turbulence in a stratified fluid with and without eigenmodes of the experimental domain. Phys. Rev. Fluids 8, 054802. doi.org/10.1103/PhysRevFluids.8.054802  arxiv (Selected as Editor's suggestions) 

We carried out an experimental study of the morphogenesis and morphodynamics of sandy beaches. By means of a small scale set-up, we aim to understand the scaling laws controlling the main variables of beach profiles. In particular, we focused in the genesis of beach step due to the convection generated by backwash vorticity.

In a wave channel, the critical coupling reached between the incident waves and the radiation damping of a cavity resonator is used to get perfect absorption. We obtain zero refletiveness in the linear regime (tuning by geometry) and in the nonlinear regime (tuning by amplitude). 

Publications:

• Monsalve, E., Maurel, A., Petitjeans, P., & Pagneux, V. (2019). Perfect absorption of water waves by linear or nonlinear critical coupling. Applied Physics Letters, 114(1), 013901. doi.org/10.1063/1.5075541 ,    arxiv 

We studied experimentally the symmetrical collision of three vortex rings. Hot wire anemometry measurements of vortex rings in air as well as shadowgraph observations of vortex rings in water are used to analyse the energy decay and the reconnection of vortex tubes. 

Publications:

• Hernández, R. H., & Monsalve, E. (2015). Experimental observation of the collision of three vortex rings. Fluid Dynamics Research, 47(3), 035513. doi.org/10.1088/0169-5983/47/3/035513 

• Editor's note on the second article of the group (Hernandez and Reyes PoF 2017) https://aip.scitation.org/doi/10.1063/1.5006639