Results 11 to 20 of about 469,323 (348)

Area preservation in computational fluid dynamics [PDF]

open access: yesPhysics Letters A, 1999
Incompressible two-dimensional flows such as the advection (Liouville) equation and the Euler equations have a large family of conservation laws related to conservation of area. We present two Eulerian numerical methods which preserve a discrete analog of area.
Arakawa   +5 more
openaire   +7 more sources

Data‐driven performance metrics for neural network learning

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary Effectiveness of data‐driven neural learning in terms of both local mimima trapping and convergence rate is addressed. Such issues are investigated in a case study involving the training of one‐hidden‐layer feedforward neural networks with the extended Kalman filter, which reduces the search for the optimal network parameters to a state ...
Angelo Alessandri   +2 more
wiley   +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

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

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

Metaphoric optical computing for fluid dynamics [PDF]

open access: yesSPIE Proceedings, 2005
We present theoretical and numerical evidence to show that self-defocusing nonlinear optical propagation can be used to compute Euler fluid dynamics and possibly Navier-Stokes fluid dynamics. In particular, the formation of twin vortices and the K rm n vortex street behind an obstacle, two well-known viscous fluid phenomena, is numerically ...
Tsang, Mankei, Psaltis, Demetri
openaire   +6 more sources

CFD/RBD Numerical Simulation Research on the Process of Buried Aviation Weapon Launch [PDF]

open access: yesHangkong bingqi, 2021
Because of its special configuration, the flying wing layout aircraft shows a big difference in performance from conventional aircraft. Embedded weapon cabin can help fighters improve stealth performance, but the door interference and the flow under the ...
Jin Chenhui, Huai Yang, Chen Xin, Wang Gang
doaj   +1 more source

Study on Numerical Algorithm of the N-S Equation for Multi-Body Flows around Irregular Disintegrations in Near Space

open access: yesAerospace, 2022
There has been a concern that the accurate numerical simulation of multi-body flow, which is caused by the multiple disintegrations of expired spacecraft re-entering into the near space, has a critical bottleneck impact on the falling area of the ...
Zheng Han   +4 more
doaj   +1 more source

A combined experimental and computational fluid dynamics analysis of the dynamics of drop formation [PDF]

open access: yes, 2005
This article presents a complementary experimental and computational investigation of the effect of viscosity and flowrate on the dynamics of drop formation in the dripping mode.
Chen H. H.   +5 more
core   +1 more source

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