Results 61 to 70 of about 18,302 (214)

Numerical Insights Into the Resistance Reduction Mechanisms of Forward Tapered Transoms in High‐Speed Catamaran: A Computational Fluid Dynamics‐Based Study

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT This study investigates the hydrodynamic influence of forward transom tapering on a displacement catamaran hull using computational fluid dynamics (CFD) simulations. Five taper configurations ranging from a vertical transom base design to a fully tapered stern (1.00B) were evaluated over a wide Froude number range (Fr = .3 to 1.0).
Chalermkiat Nuchturee, Chairat Napasaksri, Ramil Kesvarakul, Sarawuth Srinakaew   +3 more
wiley   +1 more source

MODELLING OF BUBBLE FORMATION WITH THE AID OF CFD

TASK Quarterly, 2004
Results of a numerical simulation of the bubble formation process obtained with the aid of computational fluid dynamics (CFD) approach are presented. A solution of the momentum balance (Navier-Stokes) equations was coupled with the volume of fluid (VOF)
ANDRZEJ K. BIŃ, PIOTR M. MACHNIEWSKI, LESZEK RUDNIAK   +2 more
doaj  

interThermalPhaseChangeFoam—A framework for two-phase flow simulations with thermally driven phase change

SoftwareX, 2016
The volume-of-fluid (VOF) approach is a mature technique for simulating two-phase flows. However, VOF simulation of phase-change heat transfer is still in its infancy.
Mahdi Nabil, Alexander S. Rattner
doaj   +1 more source

Aligning Real‐Time Recurrence Computational Fluid Dynamics Simulations with Plant Data for the Ruhrstahl–Heraeus Degassing Process of Steel

steel research international, EarlyView.
Uncertainties exist in computational fluid dynamics (CFD) modeling of complex metallurgical processes, even when partly validated by laboratory experiments. rCFD enables computationally efficient prediction of long‐term RH degassing and can be adapted to vary flow conditions.
Xiaomeng Zhang, Maria Thumfart, Roman Rössler, Stefan Pirker   +3 more
wiley   +1 more source

Numerical Simulation of an Air-Core Vortex and Its Suppression at an Intake Using OpenFOAM

Fluids, 2020
A common challenge faced by engineers in the hydraulic industry is the formation of free surface vortices at pump and power intakes. This undesirable phenomenon which sometimes entrains air could result in several operational problems: noise, vibration ...
Martin Kyereh Domfeh, Samuel Gyamfi, Mark Amo-Boateng, Robert Andoh, Eric Antwi Ofosu, Gavin Tabor   +5 more
doaj   +1 more source

Bottom‐Up Ice Growth Geometry Attenuates Shear Stress and Improves the Cryopreservation of Hematopoietic Stem/Progenitor Cells Under Low DMSO Concentrations

Biotechnology and Bioengineering, Volume 123, Issue 3, Page 582-597, March 2026.
ABSTRACT Studies on cell cryopreservation have been limited by the complexity of the freezing process and challenges on controlling ice formation, managing cooling rates, and optimizing cryoprotectant concentrations. The objective of this study is to evaluate the impact of bottom‐up and conventional radial freezing on the viability of mammalian cells ...
Rafaela Ouro Neves, Pedro Sena Rego, Marta H. G. Costa, Isabel Bogalho, Andreia Duarte, Claúdia L. da Silva, Frederico Castelo Ferreira, Vitor Geraldes, Miguel A. Rodrigues   +8 more
wiley   +1 more source

Numerical simulation of bubble generation in a T-junction [PDF]

, 2012
We present a numerical study of the formation of mini-bubbles in a 2D T-junction by means of the fluid dynamics numerical code JADIM. Numerical simulations were carried out for different flow conditions, giving rise to results on the behavior of bubble ...
Arias, Santiago, Gonzales-Cinca, Ricardo, Legendre, Dominique   +2 more
core   +4 more sources

Analysis of Turbulent Modeling for Free‐Surface Flows Using a Hybrid RANS‐LES Model and Particle‐Based Moving Particle Semi‐Implicit Method

International Journal for Numerical Methods in Fluids, Volume 98, Issue 3, Page 321-347, March 2026.
A hybrid RANS‐LES turbulence model adapted for the Moving Particle Semi‐implicit method is employed to investigate a turbulent free surface flow. A method based on the cell‐linked list is proposed to speed up the nearest wall search for the turbulence model.
Fabio Kenji Motezuki, Lucas Soares Pereira, Liang‐Yee Cheng, Fernando Akira Kurokawa   +3 more
wiley   +1 more source

Reproducibility of Gaseous Phase Area on Journal Bearing Utilizing Multi-Phase Flow CFD Analysis under Flooded and Starved Lubrication Conditions

Lubricants, 2019
It is important to predict the gaseous phase area of journal bearing. However, a detailed calculation method for such gaseous phase areas has not yet been proposed.
Masayuki Ochiai, Fuma Sakai, Hiromu Hashimoto   +2 more
doaj   +1 more source

Assessment of Vehicle Stability Processes Under Unsteady Flow Conditions

Journal of Flood Risk Management, Volume 19, Issue 1, March 2026.
ABSTRACT The vehicle stability criteria are based on experimental and theoretical studies that do not account for the unsteady nature of floods. The rapid variation of depths and velocities in floods causes an additional hydrodynamic force in the direction of the flow, destabilising a vehicle that would otherwise be safe in steady flow conditions. This
Fatima Azhar, Ha Hong Bui, Valentijn R. N. Pauwels   +2 more
wiley   +1 more source