Results 121 to 130 of about 420,077 (309)

In situ chamber for studying battery failure using high‐speed synchrotron radiography

open access: yesJournal of Synchrotron Radiation, Volume 30, Issue 1, Page 192-199, January 2023., 2023
The developed test chamber, capable of high‐speed X‐ray imaging, was designed to perform robust in situ abuse tests on batteries in various configurations while providing a complete overview of the failure event with additional complementary measurement methods.The investigation of lithium‐ion battery failures is a major challenge for personnel and ...
Jonas Pfaff   +9 more
wiley   +1 more source

SDF‐Guided Point Cloud Generation Framework for Mesh‐Free CFD

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
This paper presents different methods for generating clouds of points around objects for use with meshless methods in computational fluid dynamics. This image shows the cloud generated around the original ROBIN body. ABSTRACT Meshing is a bottleneck of CFD workflows, especially when complex geometries are considered.
Tao Zhang, George N. Barakos
wiley   +1 more source

Electron Heating in High Mach Number Collisionless Shocks

open access: yesPhysical Review Letters
The energy partition in high Mach number collisionless shock waves is central to a wide range of high-energy astrophysical environments. We present a new theoretical model for electron heating that accounts for the energy exchange between electrons and ions at the shock.
A. Vanthieghem   +5 more
openaire   +5 more sources

AMR for low Mach number reacting flow [PDF]

open access: yes, 2006
We present a summary of recent progress on the development and application of adaptive mesh refinement algorithms for low Mach number reacting flows. Our approach uses a form of the low Mach number equations based on a general equation of state that discretely conserves both mass and energy.
openaire   +4 more sources

Numerical Investigations of the Aerothermal Performance of Modern Turbine Blade Tip Geometries at Design and Off‐Design Conditions and Under Stationary and Moving Shroud

open access: yesHeat Transfer, EarlyView.
ABSTRACT High‐pressure turbine blade tips operate under extreme thermal stress, generating significant aerodynamic losses that must be continually optimized to improve engine efficiency and durability. This study uses computational fluid dynamics (CFD) to investigate the aerodynamic and thermal behavior of advanced turbine blade tip configurations ...
Kheir‐Eddine Arrif   +2 more
wiley   +1 more source

Analysis of Influencing Factors of Boundary Layer Transition During Ascent Phase of Hypersonic Vehicle

open access: yes气体物理
The transition of the boundary layer is an important issue that must be considered in the design of hypersonic vehicles. During the ascent phase of the vehicle, both the Mach number and the flight altitude increase simultaneously and affect the location ...
Yiwei TANG, Chao LI, Caihong SU
doaj   +1 more source

Morphology and Mach Number Dependence of Subsonic Bondi–Hoyle Accretion

open access: yesThe Astrophysical Journal
We carry out three-dimensional computations of the accretion rate onto an object (of size R _sink and mass m ) as it moves through a uniform medium at a subsonic speed v _∞ . The object is treated as a fully absorbing boundary (e.g., a black hole).
Logan J. Prust   +4 more
doaj   +1 more source

Research on the Aerodynamic–Propulsion Coupling Characteristics of a Distributed Propulsion System

open access: yesApplied Sciences
In recent years, the distributed propulsion system has received extensive attention due to its advantages such as high propulsion efficiency, low noise, high safety redundancy, and good flexibility and maneuverability.
Xiaojun Yang, Tao Liu, Wei Jia
doaj   +1 more source

Probing polarization response of monolayer cell cultures with entangled photon pairs

open access: yesJournal of Biophotonics, EarlyView.
Innovative optical detection using polarization and quantum techniques is presented for biological sample analysis. This method utilizes non‐classical light, specifically entangled photon pairs, for enhanced sensitivity in low‐photon‐flux environments.
L. Zhang   +6 more
wiley   +1 more source

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