Results 41 to 50 of about 20,305 (266)

An efficient methodology for the simulation of nonlinear irregular waves in computational fluid dynamics solvers based on the high order spectral method with an application with OpenFOAM

International Journal of Naval Architecture and Ocean Engineering, 2023
An efficient methodology for simulating nonlinear irregular waves in a Computational Fluid Dynamics (CFD) solver is proposed. The High Order Spectral (HOS) method is used to generate nonlinear irregular waves in an open ocean and a numerical wave tank ...
Young Myung Choi, Benjamin Bouscasse, Guillaume Ducrozet, Sopheak Seng, Pierre Ferrant, Eun Soo Kim, Young Jun Kim   +6 more
doaj   +1 more source

Optimization of Magnetic Milli‐Spinner for Robotic Endovascular Intervention

Advanced Robotics Research, EarlyView.
This work presents the design optimization of a multifunctional magnetic milli‐spinner for high‐speed propulsion and efficient clot debulking. The optimized design achieves an ultrafast swimming velocity of 55 cm/s (≈175 body lengths/s) in saline water, enabling stable upstream swimming against strong physiological flows and establishing magnetic milli‐
Lu Lu, Luca Higgins, Jack Bernardo, Ruike Renee Zhao   +3 more
wiley   +1 more source

Structure Optimization of a Vibration Suppression Device for Underwater Moored Platforms Using CFD and Neural Network

Complexity, 2017
We only consider the underwater mooring platform (UMP) and the plate moving in the transverse direction, and the plate can be relative to the UMP free rotation.
Zhaoyong Mao, Fuliang Zhao
doaj   +1 more source

Mixing‐Driven Defects and Composition Evolution in Multi‐Material Metal Additive Manufacturing

Advanced Science, EarlyView.
Operando synchrotron X‐ray imaging coupled with high‐fidelity multiphysics modeling uncovers how inter‐material mixing reshapes keyhole dynamics and drives distinct pore‐formation pathways in multi‐material laser powder bed fusion (LPBF). Composition‐dependent instabilities trigger defects, whereas rescanning suppresses porosity and homogenizes Cu ...
Zhilang Zhang, Steve Gaudez, Mario Togni, Steven Van Petegem, Markus Bambach, Mamzi Afrasiabi   +5 more
wiley   +1 more source

A CFD-in-the-Loop Control Simulation and Parameter Optimization Framework for Large-Angle Yaw Maneuvers of AUVs

Journal of Marine Science and Engineering
For AUVs operating under large-rudder-angle yaw maneuvering conditions, linearized hydrodynamic-derivative models often fail to accurately capture strongly nonlinear flow effects, and the applicability of control parameters becomes limited.
Daiyu Zhang, Ning Wang, Fangfang Hu, Zhenwei Liu, Chaoming Bao, Qian Liu   +5 more
doaj   +1 more source

Optimizing Stratification in Binary Colloidal Supraparticles

Advanced Science, EarlyView.
Supraparticles from binary particle populations show stratification when dried at high Péclet numbers. In spray‐dried systems at high initial particle concentration and fast drying conditions optimal combinations of particle size ratios and volume fractions that produce maximal stratification are found both in experiment and simulation, contrasting the
Frederic Rudlof, Silas Wolf, Sonja Schaller, Jonathan Martín González, Carsten Schilde, Nicolas Vogel   +5 more
wiley   +1 more source

Challenges and enablers in fluidization technology

AIChE Journal, EarlyView.
Abstract Gas–solid fluidized beds provide excellent heat and mass transfer for high‐throughput operations from coating to catalytic conversion and underpin emerging low‐carbon technologies. Yet industrial reliability, scale‐up, and control lag scientific understanding, particularly as finer, stickier, and more variable feedstocks increasingly challenge
J. Ruud van Ommen, Jia Wei Chew
wiley   +1 more source

CFD modeling and sensitivity‐guided design of silicon filament CVD reactors

AIChE Journal, EarlyView.
Abstract Filament‐based chemical vapor deposition (CVD) for silicon (Si) coatings is often treated as an adaptation of planar deposition. But this overlooks fundamental shifts in transport phenomena and reaction kinetics. In filament CVD, the filament acts as a substrate, heat source, and flow disruptor simultaneously. In this work, we ask: What really
G. P. Gakis, G. Loachamín‐Suntaxi, I. G. Aviziotis, E. D. Koronaki, P. P. Filippatos, G. Chatzigiannakis, S. P. A. Bordas, D. Davazoglou, A. G. Boudouvis   +8 more
wiley   +1 more source

Trend in CFD Technology and CFD Case Simulation on Drilling

Journal of The Korean Society for Fluid Power & Construction Equipments, 2012
1. 서 론최근 공학산업이 고도화, 정밀화, 다양화되어 부품과 장치 산업에 대한 정밀 설계 및 최적설계가 요구되고 있다.분야에 관계없이 시스템 및 부품의 설계 시 시간과 비용을 절감하면서 다양한 형태의 설계 결과를 통해 보다 최적화된 제품을 생산하고자 하는 것이 생산성 향상 및 기술고도화를 추구하는 현대 공학의 궁극적인 목표이기도 하다. 이러한 현대 공학의 목표를 달성하기 위해서는 전산설계 및 수치해석 기법이 요구되며 시스템 및 제품설계에 있어 불가결한 부분이 되었다.다양한 수치해석 기법 중 본 논문은 전산유체역학의 소개 및 기술동향, 이를 이용한 연구사례에 대하여 서술되었다.
D.Y. Shin, C.H. Song, Y.C. Lee
openaire   +2 more sources

CFD Simulation for the Pasteurization of Fruit Puree with Pieces

Chemical Engineering Transactions, 2014
Thermal pasteurization is a technique widely utilized in the industry to reduce the microbial content of foods and increase their shelf life. The food pasteurization is commonly carried out in continuous process where the food undergoes to a rapid heating and a subsequent cooling with high heat transfer coefficients in order to reduce the degradation ...
D'Addio, L., DI NATALE, Francesco, Budelli, A., NIGRO, ROBERTO   +3 more
openaire   +3 more sources