Results 21 to 30 of about 20,987 (146)

Numerical Prediction of the Vertical Responses of Planing Hulls in Regular Head Waves

Journal of Marine Science and Engineering, 2020
The evaluation of the hydrodynamic performance of planing vessels has always been one of the most attractive study fields in the maritime agenda. Resistance and self-propulsion studies have been performed using experimental and numerical methods by ...
Emre Kahramanoğlu, Ferdi Çakıcı, Ali Doğrul   +2 more
doaj   +1 more source

Assessment of a Spalart–Allmaras Model Coupled with Local Correlation Based Transition Approaches for Wind Turbine Airfoils

Applied Sciences, 2021
This paper present recent advances in the development of local correlation based laminar–to–turbulent transition modeling relying on the Spalart–Allmaras equation.
Valerio D’Alessandro, Sergio Montelpare, Renato Ricci   +2 more
doaj   +1 more source

PAB3D: Its History in the Use of Turbulence Models in the Simulation of Jet and Nozzle Flows [PDF]

This is a review paper for PAB3D s history in the implementation of turbulence models for simulating jet and nozzle flows. We describe different turbulence models used in the simulation of subsonic and supersonic jet and nozzle flows.
Abdol-Hamid K., Abdol-Hamid K. S., Abdol-Hamid K. S., Abdol-Hamid K.S., Abdol-Hamid K.S., Abdol-Hamid K.S., Bridges J., Carlson J. R., Carlson J. R., Carlson J. R., Carlson R., Carlson R., Dash M., Deere K. A., Deere K. A., Deere K.A., Deere K.A., Elmiligui A., Görtler H., Hunter A., Jones W.T., Kuhne C. M., Lakshmanan B., Lebedev A. B., Love S., Mani M., Nichols R.H., Nichols R.H., Pao S. P., Potential Core Figure, Reichardt, Ronki M., Seiner J.M., Shih T.H., So R.M.C., Spalart P.R., Theis A. T., Uenishi K., Walter M., Warren R., Jr.   +39 more
core   +2 more sources

RANS Turbulence Model Development using CFD-Driven Machine Learning

, 2020
This paper presents a novel CFD-driven machine learning framework to develop Reynolds-averaged Navier-Stokes (RANS) models. The CFD-driven training is an extension of the gene expression programming method (Weatheritt and Sandberg, 2016), but crucially ...
Akolekar, Harshal D., Michelassi, Vittorio, Sandberg, Richard D., Weatheritt, Jack, Zhao, Yaomin   +4 more
core   +1 more source

The Flight Mechanism of a Bird-like Flapping Wing Robot at a Low Reynolds Number

Journal of Robotics, 2022
The flight mechanism of a bird-like flapping wing robot at a low Reynolds number was studied in this study for improving the robot performances. Both the physical model and the kinematic model were first established.
Changtao Ding, Xiating Yao, Chengyao Liu
doaj   +1 more source

RANS-based fast computational methods for indoor flows: a framework-driven performance assessment for a simple benchmark

Developments in the Built Environment
Reliable indoor climate prediction requires reliable tools. Complex airflow predictions often involve the use of physical or numerical models. Computational fluid dynamics (CFD) is a popular, high-fidelity method that can produce reliable predictions ...
Eugene Mamulova, Marcel Loomans, Twan van Hooff   +2 more
doaj   +1 more source

Numerical Analysis of the Structure of Liquid Flow in the Tundish with Physical Model Verification [PDF]

Archives of Metallurgy and Materials, 2018
Detailed studies of the movement of liquid steel (hydrodynamics) on a real object are practically impossible. The solution to this problem are physical modelling carried out on water models and numerical modelling using appropriate programs.
T. Merder
doaj   +1 more source

Mesh-Free Analysis of a Vertical Axis Wind Turbine Using Lattice Boltzmann Method and Various Turbulence Models

Applied Sciences, 2023
This study aims to investigate the aerodynamic analysis of a Darrieus-type vertical axis wind turbine (VAWT) using the Lattice Boltzmann Method (LBM).
Cinar Laloglu, Emre Alpman
doaj   +1 more source

Transitional Flow Modeling and Application to High-Lift Multi-Element Airfoil Configurations [PDF]

, 2003
To enhance its capabilities to handle flows with transition, a Reynolds averaged Navier-Stokes solver has been extended with regard to the modeling of transitional flow regions based on transition length models and the intermittency function. Because the
Krumbein, A.
core   +1 more source

Numerical Simulation and Characteristic Analysis of Ship's Air Flow Field [PDF]

Xibei Gongye Daxue Xuebao, 2018
The air flow field of ship was simulated by using computational fluid dynamics technology to analyze its prime characteristics with reasonable accuracy.

doaj   +1 more source