Results 21 to 30 of about 1,282,048 (295)

Drag Coefficient Estimation of Low Density Objects by Free Fall Experiments

open access: yesAnnals of West University of Timisoara: Physics, 2023
The present article investigates whether the drag coefficient of low density objects can be determined by free fall experiments with sufficient accuracy.
Günther T. H., Hoang K. A.
doaj   +1 more source

DRAG COEFFICIENT OF VEGETATION IN FLOW MODELING [PDF]

open access: yesCoastal Engineering Proceedings, 2012
Flow through vegetation has a significant impact on sediment transport and ecosystem robustness in the coastal and fluvial environment. Numerical models (Nepf and Vivoni, 2000; Uittenbogaaard, 2003) have been developed to simulate this type of flow. The success of these models depends on proper characterization of the main processes and appropriate ...
Hu, Z. (author)   +3 more
openaire   +2 more sources

Parameterization of Sea Surface Drag Coefficient for All Wind Regimes Using 11 Aircraft Eddy-Covariance Measurement Databases

open access: yesAtmosphere, 2021
The drag coefficient is essential for calculating the aerodynamic friction between air and sea. In this study, we regress a set of relationships between the drag coefficient and the wind speed for different wind ranges using an observational dataset that
Zhiqiu Gao   +4 more
doaj   +1 more source

Bottom Drag Variations Under Waves and Currents: A Case Study on a Muddy Deposit off the Shandong Peninsula

open access: yesFrontiers in Earth Science, 2022
Bottom drag coefficient is one of the key parameters in quantifying shelf hydrodynamics and sediment transport processes. It varies markedly due to dynamic forcing and bed type differences, so a set of empirical values have been used for beds of coarse ...
Fukang Qi   +4 more
doaj   +1 more source

Enhancing the Dynamic Stability of Pylons via Their Drag and Lift Coefficients by Finite Volume Method

open access: yesBuildings, 2023
This study aimed to estimate the drag and lift coefficients of the long-span bridge pylon using the finite volume method (FVM). The k-ω turbulence model was applied to analyze the behavior of wind flow around the pylon, yielding drag and lift coefficient
Van My Nguyen, Van Than Chau
doaj   +1 more source

Drag coefficient acquisition using the FFT.

open access: yes, 2022
Drag coefficient acquisition using the FFT.
Keunyeong Kim (13020525)   +3 more
core   +1 more source

Drag coefficient of vertically moving popcorns [PDF]

open access: yesRevista Brasileira de Ensino de Física
To take the students attention in physics lectures is always a challenge. The projectile motion is not an exception. Then, study of popcorn motion can be a way to introduce and motivate the students in this subject.
Eduardo do Carmo   +1 more
doaj   +1 more source

Uncertainty analysis of the drag coefficient measurements.

open access: yes, 2022
Uncertainty analysis of the drag coefficient measurements.
Keunyeong Kim (13020525)   +3 more
core   +1 more source

An investigation into unsteady base bleed for drag reduction in bluff two-box SUVs [PDF]

open access: yes, 2009
This paper discusses a preliminary investigation into the use of base bleed on a production SUV using CFD analysis. The paper shows the methods used in creating the computational model and conducting the analysis, and present the findings to date.
Kennedy, Johnathan J.   +2 more
core   +2 more sources

Aerodynamic study of three cars in tandem using computational fluid dynamics

open access: yesJournal of Mechanical Engineering and Sciences, 2021
Aerodynamics of vehicles account for nearly 80% of fuel losses on the road. Today, the use of the Intelligent Transport System (ITS) allows vehicles to be guided at a distance close to each other and has been shown to help reduce the drag coefficients ...
H. Abdul-Rahman   +2 more
doaj   +1 more source

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