Zobrazeno 1 - 10
of 12 719
pro vyhledávání: '"Sreenivasan, A."'
The applications and impact of high fidelity simulation of fluid flows are far-reaching. They include settling some long-standing and fundamental questions in turbulence. However, the computational resources required for such efforts are extensive. H
Externí odkaz:
http://arxiv.org/abs/2409.09736
Construction workers exert intense physical effort and experience serious safety and health risks in hazardous working environments. Quiet stance and kneeling are among the most common postures performed by construction workers during their daily wor
Externí odkaz:
http://arxiv.org/abs/2408.07795
relentless is an open-source Python package that enables the optimization of objective functions computed using molecular dynamics simulations. It has a high-level, extensible interface for model parametrization; setting up, running, and analyzing si
Externí odkaz:
http://arxiv.org/abs/2408.03213
Autor:
Varma, Aditya, Sreenivasan, Binod
Seismic mapping of the top of the inner core indicates two distinct areas of high P-wave velocity, the stronger one located beneath Asia, and the other located beneath the Atlantic. This two-fold pattern supports the idea that a lower-mantle heteroge
Externí odkaz:
http://arxiv.org/abs/2408.03158
Turbulent convection in the interiors of the Sun and the Earth occurs at high Rayleigh numbers $Ra$, low Prandtl numbers $Pr$, and different levels of rotation rates. To understand the combined effects better, we study rotating turbulent convection f
Externí odkaz:
http://arxiv.org/abs/2407.15064
Autor:
Chen, Xi, Sreenivasan, Katepalli R.
Turbulent wall-flows are the most important means for understanding the effects of boundary conditions and fluid viscosity on turbulent fluctuations. There has been considerable recent research on mean-square fluctuations. Here, we present expression
Externí odkaz:
http://arxiv.org/abs/2406.18711
A direct dynamical test of the sunspot-cycle is carried out which indicates that a stochastically forced non-linear oscillator characterizes its dynamics. The sunspot series is then decomposed into its eigen time-delay coordinates. The analysis of th
Externí odkaz:
http://arxiv.org/abs/2406.05289
Autor:
Ankner, Zachary, Blakeney, Cody, Sreenivasan, Kartik, Marion, Max, Leavitt, Matthew L., Paul, Mansheej
In this work, we investigate whether small language models can determine high-quality subsets of large-scale text datasets that improve the performance of larger language models. While existing work has shown that pruning based on the perplexity of a
Externí odkaz:
http://arxiv.org/abs/2405.20541
Many claims of computational advantages have been made for quantum computing over classical, but they have not been demonstrated for practical problems. Here, we present algorithms for solving time-dependent PDEs, with particular reference to fluid e
Externí odkaz:
http://arxiv.org/abs/2405.09767
Autor:
Samuel, Roshan J., Bode, Mathis, Scheel, Janet D., Sreenivasan, Katepalli R., Schumacher, Jörg
Publikováno v:
J. Fluid Mech. 996 (2024) A49
We study the dynamics of thermal and momentum boundary regions in three-dimensional direct numerical simulations of Rayleigh-B\'enard convection for the Rayleigh number range $10^5 \le Ra \le 10^{11}$ and $Pr=0.7$. Using a Cartesian slab with horizon
Externí odkaz:
http://arxiv.org/abs/2403.12877