[HTML][HTML] Do logarithmic terms exist in the drag coefficient of a single sphere at high Reynolds numbers?

YMF El Hasadi, JT Padding - Chemical Engineering Science, 2023 - Elsevier
At the beginning of the second half of the twentieth century, Proudman and Pearson (J.
Fluid. Mech., 2 (3), 1956, pp. 237–262) suggested that the functional form of the drag …

A data–driven sensibility tool for flow control based on resolvent analysis

E Lazpita, J Garicano-Mena, G Paniagua… - Results in …, 2024 - Elsevier
This study presents a novel application of data-driven resolvent analysis algorithm for flow
control. The objective is to identify key coherent structures connected to regions of the flow …

Drag crisis analysis of a high-altitude balloon in critical transition

Y Tian, G Lin, J Guo - Aerospace Science and Technology, 2023 - Elsevier
Drag coefficient is one of the crucial parameters in the dynamic modeling of position control
systems for high-altitude super-pressure balloons. Numerical simulations with Transition …

Numerical Simulation of the Drag Crisis on a Sphere Using a Scale-Resolving Approach

AS Stabnikov, AV Garbaruk, MK Strelets - Fluid Dynamics, 2024 - Springer
The drag crisis in flow past a sphere is modeled within the framework of the recently
formulated scale-resolving hybrid RANS− LES approach, which includes a semi-empirical …

Comparison of Transitional Turbulence Models for Numerical Simulation of Flow Past a Sphere in a Pipe

L Song, X Liu, Q Zhou, X Li - International …, 2022 - asmedigitalcollection.asme.org
To develop a novel passive valve with a spherical disc for reactors, it is necessary to find a
suitable numerical model to study the flow characteristics of flow past a sphere in confined …

Impact of Numerical Settings on Simulation Performance of the Gamma-Re-Theta Model for 2D and 3D Bluff Body Transitional Flow Cases using OpenFOAM

S Soman, A Melvin, D Variya… - Conference on Fluid …, 2021 - Springer
Modeling transitional turbulence, especially over bluff bodies, has always been difficult due
to the various mechanisms governing transition depending upon the nature of the flow …