Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Prakash, Aviral"'
Nonintrusive projection-based reduced order models (ROMs) are essential for dynamics prediction in multi-query applications where access to the source of the underlying full order model (FOM) is unavailable; that is, FOM is a black-box. This article
Externí odkaz:
http://arxiv.org/abs/2410.11253
We perform fully general-relativistic simulations of binary strange star mergers considering two different approaches for thermal effects. The first uses a cold equation of state (EOS) derived from a modified version of the MIT bag model which is the
Externí odkaz:
http://arxiv.org/abs/2407.11143
Reduced order modeling lowers the computational cost of solving PDEs by learning a low-order spatial representation from data and dynamically evolving these representations using manifold projections of the governing equations. While commonly used, l
Externí odkaz:
http://arxiv.org/abs/2405.14890
Identifying differential operators from data is essential for the mathematical modeling of complex physical and biological systems where massive datasets are available. These operators must be stable for accurate predictions for dynamics forecasting
Externí odkaz:
http://arxiv.org/abs/2405.00198
Projection-based reduced order models rely on offline-online model decomposition, where the data-based energetic spatial basis is used in the expensive offline stage to obtain equations of reduced states that evolve in time during the inexpensive onl
Externí odkaz:
http://arxiv.org/abs/2401.17383
Autor:
Bandyopadhyay, Harshraj, Radice, David, Prakash, Aviral, Dhani, Arnab, Logoteta, Domenico, Perego, Albino, Kashyap, Rahul
We study the ringdown signal of black holes formed in prompt-collapse binary neutron star mergers. We analyze data from $47$ numerical relativity simulations. We show that the $(\ell=2,m=2)$ and $(\ell=2,m=1)$ multipoles of the gravitational wave sig
Externí odkaz:
http://arxiv.org/abs/2312.11620
Autor:
Prakash, Aviral, Gupta, Ish, Breschi, Matteo, Kashyap, Rahul, Radice, David, Bernuzzi, Sebastiano, Logoteta, Domenico, Sathyaprakash, B. S.
We study the detectability of postmerger QCD phase transitions in neutron star binaries with next-generation gravitational-wave detectors Cosmic Explorer and Einstein Telescope. We perform numerical relativity simulations of neutron star mergers with
Externí odkaz:
http://arxiv.org/abs/2310.06025
Direct numerical simulation (DNS) of a turbulent boundary layer over the Gaussian (Boeing) bump is performed. This boundary layer exhibits a series of adverse and favorable pressure gradients and convex and concave curvature effects before separating
Externí odkaz:
http://arxiv.org/abs/2306.05972
Autor:
Fields, Jacob, Prakash, Aviral, Breschi, Matteo, Radice, David, Bernuzzi, Sebastiano, Schneider, André da Silva
Publikováno v:
ApJL, 952, L36 (2023)
We study the impact of finite-temperature effects in numerical-relativity simulations of binary neutron star mergers with microphysical equations of state and neutrino transport in which we vary the effective nucleon masses in a controlled way. We fi
Externí odkaz:
http://arxiv.org/abs/2302.11359
We use numerical relativity simulations of binary neutron star mergers to show that high density deconfinement phase transitions (PTs) to quark matter can be probed using multimodal postmerger gravitational wave (GW) spectroscopy. Hadron-quark PTs su
Externí odkaz:
http://arxiv.org/abs/2301.03619