Tootfinder

Nintendo Switch 2 uses microSD-express, I guess this will be a good time for people to try attacking it via the PCIexpress string.

The "Gollum effect" - wow didn't know this name, but yes, this is exactly what makes certain fields so terrible (like network science). It's just about old men behaving like Gorillas 🤮 https://www.nature.com/articles/d41586-025-01588-w
It's so n…

Science’s ‘Gollum effect’: PhDs bear brunt of territorial behaviour
Survey respondents at all career stages report colleagues engaging in territorial and possessive behaviours — but early-career researchers are most often affected.

Trouxe um bule de #café para os alunos tomarem durante a prova mais tarde. Eu sou um professor sšdico psicopata vindo do inferno, mas eu também sou um amor rs.

This https://arxiv.org/abs/2505.24075 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Extracting dominant dynamics about unsteady base flows
A wide range of techniques exist for extracting the dominant flow dynamics and features about steady, or periodic base flows. However, there have been limited efforts in extracting the dominant dynamics about unsteady, aperiodic base flow. These flows appear in many applications such as when there is a sudden change in the flow rate through a pipe, when an airfoil experiences stall, or when a vortex forms. For these unsteady flows, it is valuable to know not only the dynamics of the base flow b…

This https://arxiv.org/abs/2505.22256 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Improvement of Solid-Fluid Interaction Scheme in Lattice Boltzmann Immiscible Pseudopotential Models
The pseudopotential model within the Lattice Boltzmann Method (LBM) framework has emerged as a prominent approach in computational fluid dynamics due to its dual strengths in physical intuitiveness and computational tractability. However, when modeling wettability phenomenon, existing solid-fluid interaction schemes exhibit persistent challenges in multi-component immiscible fluid systems, notably manifested through spurious velocity artifacts and unphysical mass-transfer boundary layers. This …

This https://arxiv.org/abs/2505.21124 has been replaced.
initial toot: https://mastoxiv.page/@ar…

UniFoil: A Universal Dataset of Airfoils in Transitional and Turbulent Regimes for Subsonic and Transonic Flows
We present UniFoil, a large publicly available universal airfoil dataset based on Reynolds-averaged Navier-Stokes (RANS) simulations. It contains over 500,000 samples spanning a wide range of Reynolds and Mach numbers, capturing both transitional and fully turbulent flows across incompressible to compressible regimes. UniFoil is designed to support machine learning research in fluid dynamics, particularly for modeling complex aerodynamic phenomena. Most existing datasets are limited to incompre…

This https://arxiv.org/abs/2502.16356 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Analysis of In-cylinder Flow Structures and Turbulence in a Laboratory Scale Engine using Direct Numerical Simulations
In-cylinder flow structures and turbulence characteristics are investigated using direct numerical simulations (DNS) in a laboratory-scale engine at technically relevant engine speeds (1500 and 2500 rpm at full load). The data is computed for 12 compression-expansion cycles at each engine speed with initial conditions derived from precursor large eddy simulations (LES) validated against experimental data. Analysis of the tumble ratio indicates significant cycle-to-cycle variation, with lower va…

This https://arxiv.org/abs/2411.09620 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Melting of floating ice cylinders in fresh and saline environments
We experimentally investigated the melting of floating ice cylinders. Experiments were carried out in a tank, with ice cylinders with radii between 5 cm and 12 cm, floating horizontally with their axis perpendicular to gravity. The water in the tank was at room temperature, with salinities ranging from 0 g/L to 35 g/L. These conditions correspond to Rayleigh numbers in the range $10^5 \lesssim \mathrm{Ra} \lesssim 10^9$. The relative density and thus the floating behaviour was varied by employi…

This https://arxiv.org/abs/2506.01835 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Discrete vortex-based broadcast mode analysis for modification of dynamic stall
We integrate a discrete vortex method with complex network analysis to strategize dynamic stall mitigation over a pitching airfoil with active flow control. The objective is to inform actuator placement and timing to introduce control inputs during the transient evolution of dynamic stall. To this end, we represent the massively separated flow as a network of discrete vortical elements and quantify the interactions among these vortical nodes by tracking the spread of displacement perturbations …

This https://arxiv.org/abs/2505.02580 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Temperature and pressure reconstruction in turbulent Rayleigh-Bénard convection by Lagrangian velocities using PINN
Velocity, pressure, and temperature are the key variables for understanding thermal convection, and measuring them all is a complex task. In this paper, we demonstrate a method to reconstruct temperature and pressure fields based on given Lagrangian velocity data. A physics-informed neural network (PINN) based on a multilayer perceptron architecture and a periodic sine activation function is used to reconstruct both the temperature and the pressure for two cases of turbulent Rayleigh-Bénard co…