Results 21 to 30 of about 10,561 (136)

Reasonable Intake and Exhaust Processes Scheduling of Two‐Stroke Free Piston Linear Generator for Intelligent New Energy Vehicles

Energy Science &Engineering, Volume 13, Issue 5, Page 2428-2439, May 2025.
Reasonable intake and exhaust processes scheduling. ABSTRACT Considered a promising power plant offering 25% higher efficiency than conventional reciprocating engines, the free piston linear generator (FPLG) has garnered significant attention due to its breakthrough design that eliminates the crank‐connecting rod, thereby achieving enhanced efficiency.
Dequan Zeng, Jun Lu, Yiming Hu, Peizhi Zhang, Jinwen Yang, Qin Yu, Xiaoliang Wang   +6 more
wiley   +1 more source

Analysis of Surface Behavior and Cavity Oscillations in a Liquid Metal Model Experiment of the Basic Oxygen Furnace Process

steel research international, Volume 96, Issue 5, May 2025.
The behavior of the free surface in a model experiment of a basic oxygen furnace is recorded using high‐speed video recordings. In the experiment, two different model fluids are utilized. Various phenomena at the free surface are observed, described, and explained where possible.
Johannes Burkert, Rüdiger Schwarze
wiley   +1 more source

Phenomenological Study of the Atomization Process in Pre‐Filming Nozzles Typically Used for Steel Atomization

steel research international, Volume 96, Issue 5, May 2025.
The efficiency of liquid steel atomization with close‐coupled nozzles depends on the interplay of momentum flux ratio, gas–liquid ratio, aspiration pressure, and inert gas pressure. This study explores these interactions, focusing on flow conditions and recirculation phenomena.
Tom Kasper, Max Finster, Rüdiger Schwarze   +2 more
wiley   +1 more source

The Matrix‐Free Macro‐Element Hybridized Discontinuous Galerkin Method for Steady and Unsteady Compressible Flows

International Journal for Numerical Methods in Fluids, Volume 97, Issue 4, Page 462-483, April 2025.
We investigate the macro‐element hybridized discontinuous Galerkin (HDG) method that combines advantages of continuous and discontinuous finite elements for compressible flow analysis. To efficiently handle large systems, we focus on computational strategies at the level of the direct local solver and the matrix‐free iterative global solver.
Vahid Badrkhani, Marco F. P. ten Eikelder, René R. Hiemstra, Dominik Schillinger   +3 more
wiley   +1 more source

Poromechanical approach to blast‐induced dynamic fracture in concrete

Structural Concrete, Volume 26, Issue 2, Page 1770-1790, April 2025.
Abstract This study introduces a novel poromechanical approach to analyze blast‐induced dynamic fracture in concrete considering gaseous kinetics. The objective is to establish a framework for examining the fracture mechanisms during demolition.
Stanislav Zažirej, Koichi Maekawa, Akira Hosoda   +2 more
wiley   +1 more source

A New Approach to Asynchronous Variational Integrators for a Phase Field Model of Dynamic Fracture

International Journal for Numerical Methods in Engineering, Volume 126, Issue 6, 30 March 2025.
ABSTRACT Phase field modeling of fracture has gained attention as a relatively simple and fundamental approach to predict crack propagation. However, the significant computational demands still pose challenges, particularly in dynamic simulations. To mitigate these challenges, we present a newly devised asynchronous variational integrator (AVI) for ...
Deepak B. Jadhav, Dhananjay Phansalkar, Kerstin Weinberg, Michael Ortiz, Sigrid Leyendecker   +4 more
wiley   +1 more source

Hall Scale in the Earth's Magnetosphere and Magnetospheric Substorm

Geophysical Research Letters, Volume 52, Issue 5, 16 March 2025.
Abstract We investigate the contribution of the Hall term on the generalized Ohm's law in magnetospheric plasmas. In particular, we focus on its role in processes that lead to the formation of substorm perturbations deep inside the magnetosphere. Using data from the THEMIS mission, we calculate the average Hall length LHall $\left({L}_{\text{Hall ...
E. E. Antonova, I. Kirpichev, M. Stepanova   +2 more
wiley   +1 more source

MESSENGER Observations of a Possible Alfvén Wing at Mercury Driven by a Low Alfvénic Mach Number Interplanetary Coronal Mass Ejection

Journal of Geophysical Research: Space Physics, Volume 130, Issue 3, March 2025.
Abstract We investigate Mercury's response to rare, low Alfvénic Mach number MA $\left({M}_{A}\right)$ solar wind conditions using observations from the Mercury Surface, Space Environment, Geochemistry, and Ranging (MESSENGER) mission. This study provides compelling evidence of Mercury's altered magnetospheric state under these extreme conditions ...
Charles F. Bowers, Caitríona M. Jackman, Xianzhe Jia, James A. Slavin, Joachim Saur, Mika K. G. Holmberg, Ryan M. Dewey, Daniel Heyner, Filip Elekes, Lina Z. Hadid, Benoit Lavraud, Yang Wang, Hans L. F. Huybrighs, Matthew J. Rutala, Alexandra R. Fogg, Stephenie Brophy Lee, Daragh M. Hollman   +16 more
wiley   +1 more source

A Numerical Framework for Fast Transient Compressible Flows Using Lattice Boltzmann and Immersed Boundary Methods

International Journal for Numerical Methods in Engineering, Volume 126, Issue 3, 15 February 2025.
ABSTRACT This article is dedicated to the development of a model to simulate fast transient compressible flows on solid structures using immersed boundary method (IBM) and a lattice Boltzmann solver. Ultimately, the proposed model aims at providing an efficient algorithm to simulate strongly‐coupled fluid‐structure interactions (FSI). Within this goal,
Hippolyte Lerogeron, Pierre Boivin, Vincent Faucher, Julien Favier   +3 more
wiley   +1 more source

Bibliography on aerodynamics of airframe/engine integration of high-speed turbine-powered aircraft, volume 1 [PDF]

This bibliography was developed as a first step in the preparation of a monograph on the subject of the aerodynamics of airframe/engine integration of high speed turbine powered aircraft.
Nichols, M. R.
core   +1 more source