Zobrazeno 1 - 10
of 8 197
pro vyhledávání: '"A, Bourdin"'
The aim of this work is to analyse a shape optimization problem in a mechanical friction context. Precisely we perform a shape sensitivity analysis of a Tresca friction problem, that is, a boundary value problem involving the usual linear elasticity
Externí odkaz:
http://arxiv.org/abs/2411.10158
We investigate the systematic design of compliant morphing structures composed of materials reacting to an external stimulus. We add a perimeter penalty term to ensure existence of solutions. We propose a phase-field approximation of this sharp inter
Externí odkaz:
http://arxiv.org/abs/2411.06289
This paper investigates, without any regularization procedure, the sensitivity analysis of a mechanical friction problem involving the (nonsmooth) Tresca friction law in the linear elastic model. To this aim a recent methodology based on advanced too
Externí odkaz:
http://arxiv.org/abs/2410.22356
Autor:
Riva, G., Pratt, G. W., Rossetti, M., Bartalucci, I., Kay, S. T., Rasia, E., Gavazzi, R., Umetsu, K., Arnaud, M., Balboni, M., Bonafede, A., Bourdin, H., De Grandi, S., De Luca, F., Eckert, D., Ettori, S., Gaspari, M., Gastaldello, F., Ghirardini, V., Ghizzardi, S., Gitti, M., Lovisari, L., Maughan, B. J., Mazzotta, P., Molendi, S., Pointecouteau, E., Sayers, J., Sereno, M., Towler, I.
We characterise the entropy profiles of 32 very high mass ($M_{500}>7.75\times10^{14}~M_{\odot}$) galaxy clusters (HIGHMz), selected from the CHEX-MATE sample, to study the intracluster medium (ICM) entropy distribution in a regime where non-gravitat
Externí odkaz:
http://arxiv.org/abs/2410.11947
This paper investigates the sensitivity analysis of a scalar mechanical contact problem described by a boundary value problem involving the Tresca's friction law. The sensitivity analysis is performed with respect to right-hand source and boundary te
Externí odkaz:
http://arxiv.org/abs/2410.11760
This paper investigates, without any regularization or penalization procedure, a shape optimization problem involving a simplified friction phenomena modeled by a scalar Tresca friction law. Precisely, using tools from convex and variational analysis
Externí odkaz:
http://arxiv.org/abs/2410.11750
Autor:
Bourdin, Antoine, Legin, Ronan, Ho, Matthew, Adam, Alexandre, Hezaveh, Yashar, Perreault-Levasseur, Laurence
Cosmological hydrodynamical simulations, while the current state-of-the art methodology for generating theoretical predictions for the large scale structures of the Universe, are among the most expensive simulation tools, requiring upwards of 100 mil
Externí odkaz:
http://arxiv.org/abs/2408.00839
This work introduces a partitioned optimization framework (POf) to ease the solving process for optimization problems for which fixing some variables to a tunable value removes some difficulties. The variables space may be continuously partitioned in
Externí odkaz:
http://arxiv.org/abs/2407.05046
Autor:
Dupourqué, Simon, Clerc, Nicolas, Pointecouteau, Etienne, Eckert, Dominique, Gaspari, Massimo, Lovisari, Lorenzo, Pratt, Gabriel W., Rasia, Elena, Rossetti, Mariachiara, Vazza, Franco, Balboni, Marco, Bartalucci, Iacopo, Bourdin, Hervé, De Luca, Federico, De Petris, Marco, Ettori, Stefano, Ghizzardi, Simona, Mazzotta, Pasquale
Publikováno v:
A&A 687, A58 (2024)
The intra-cluster medium is prone to turbulent motion that will contribute to the non-thermal heating of the gas, complicating the use of galaxy clusters as cosmological probes. Indirect approaches can estimate the intensity and structure of turbulen
Externí odkaz:
http://arxiv.org/abs/2403.03064
Autor:
Balboni, M., Gastaldello, F., Bonafede, A., Botteon, A., Bartalucci, I., Bourdin, H., Brunetti, G., Cassano, R., De Grandi, S., De Luca, F., Ettori, S., Ghizzardi, S., Gitti, M., Iqbal, A., Johnston-Hollitt, M., Lovisari, L., Mazzotta, P., Molendi, S., Pointecouteau, E., Pratt, G. W., Riva, G., Rossetti, M., Rottgering, H., Sereno, M., van Weeren, R. J., Venturi, T., Veronesi, I.
The connection between the thermal and non-thermal properties in galaxy clusters hosting radio halos seems fairly well established. However, a comprehensive analysis of such a connection has been made only for integrated quantities (e.g. $L_X - P_{ra
Externí odkaz:
http://arxiv.org/abs/2402.18654