Results 1 to 10 of about 467,025 (157)

Numerical Investigation of Different Core Topologies in Sandwich-Structured Composites Subjected to Air-Blast Impact

open access: yesApplied Sciences, 2022
Air-blast loading is a serious threat to military and civil vehicles, buildings, containers, and cargo. Applications of sandwich-structured composites have attracted increasing interest in modern lightweight design and in the construction of dynamic ...
Marcel Walkowiak   +2 more
doaj   +1 more source

Numerical investigation of effects of tongue articulation and velopharyngeal closure on the production of sibilant [s]

open access: yesScientific Reports, 2022
A numerical simulation of sibilant /s/ production with the realistically moving vocal tract was conducted to investigate the flow and acoustic characteristics during the articulation process of velopharyngeal closure and tongue movement. The articulation
HsuehJui Lu   +5 more
doaj   +1 more source

Numerical investigation of effects of incisor angle on production of sibilant /s/

open access: yesScientific Reports, 2021
The effects of the inclination angle of the incisor on the speech production of the fricative consonant /s/ was investigated using an implicit compressible flow solver.
HsuehJui Lu   +5 more
doaj   +1 more source

Adaptively switched time stepping scheme for direct aeroacoustic computations

open access: yesAIP Advances, 2022
The physical variables involved in a flow field are of very different scales to those of the aeroacoustic field within the flow. Thus, direct aeroacoustic computations (DACs) require extremely small time steps to capture the fluctuations in the ...
HsuehJui Lu   +2 more
doaj   +1 more source

Transient CFD analysis of fuel siphoning under a sudden inertial load

open access: yesScientific Reports, 2022
This paper presents the results of CFD investigations of siphoning between tanks of an aircraft fuel system under high-g conditions typical of an extreme pull-up maneuver.
Kang-Sik Bae, Edwin L. Blosch
doaj   +1 more source

Exploring ice sheet model sensitivity to ocean thermal forcing and basal sliding using the Community Ice Sheet Model (CISM) [PDF]

open access: yesThe Cryosphere, 2023
Multi-meter sea level rise (SLR) is thought to be possible within the next few centuries, with most of the uncertainty originating from the Antarctic land ice contribution. One source of uncertainty relates to the ice sheet model initialization.
M. Berdahl   +6 more
doaj   +1 more source

Dynamics and Elastic Properties of Glassy Metastable States

open access: yesSolids, 2021
By a molecular dynamics (MD) simulation method which ensures the system will be under hydrostatic pressure, dynamic and elastic properties of glassy metatstable states are investigated.
Keiko M. Aoki
doaj   +1 more source

Coupled flight dynamics and CFD - demonstration for helicopters in shipborne environment [PDF]

open access: yes, 2017
The development of high-performance computing and computational fluid dynamics methods have evolved to the point where it is possible to simulate complete helicopter configurations with good accuracy.
Barakos, G.N., Crozon, C., Steijl, R.
core   +1 more source

The DOE E3SM v1.2 Cryosphere Configuration: Description and Simulated Antarctic Ice‐Shelf Basal Melting

open access: yesJournal of Advances in Modeling Earth Systems, 2022
The processes responsible for freshwater flux from the Antarctic Ice Sheet (AIS), ice‐shelf basal melting and iceberg calving, are generally poorly represented in current Earth System Models (ESMs).
Darin Comeau   +13 more
doaj   +1 more source

Evaluation and optimization of H2 and C2H4 production in piston engines via an adjoint-based approach

open access: yesApplications in Energy and Combustion Science, 2023
In the context of the energy transition, efficient energy systems are desired. One promising approach is the use of piston engines for energy and species conversion.
Mathias Lemke   +3 more
doaj   +1 more source

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