Results 51 to 60 of about 122,754 (308)

Inviscid SPH

, 2010
In smooth-particle hydrodynamics (SPH), artificial viscosity is necessary for the correct treatment of shocks, but often generates unwanted dissipation away from shocks. We present a novel method of controlling the amount of artificial viscosity, which uses the total time derivative of the velocity divergence as shock indicator and aims at completely ...
Cullen, Lee, Dehnen, Walter
openaire   +2 more sources

Challenges to the utilization of Community-based Health Planning and Services: the views of stakeholders in Yendi Municipality, Ghana

BMC Health Services Research, 2021
Background The Community-based Health Planning and Services (CHPS) is a national health reform programme that provides healthcare at the doorsteps of rural community members, particularly, women and children.
Bougangue Bassoumah, Andani Mohammed Adam, Martin Nyaaba Adokiya   +2 more
doaj   +1 more source

Cutting Force Prediction of Ti6Al4V using a Machine Learning Model of SPH Orthogonal Cutting Process Simulations

Journal of Machine Engineering, 2022
The prediction of machining processes is a challenging task and usually requires a large experimental basis. These experiments are time-consuming and require manufacturing and testing of different tool geometries at various process conditions to find ...
Hagen Klippel, Eduardo Gonzalez Sanchez, Margolis Isabel, Matthias Röthlin, Mohamadreza Afrasiabi, Kuffa Michal, Konrad Wegener   +6 more
doaj   +1 more source

On the convergence of the critical cooling timescale for the fragmentation of self-gravitating discs

, 2012
We carry out simulations of gravitationally unstable discs using a Smoothed Particle Hydrodynamics (SPH) code and a grid-based hydrodynamics code, FARGO, to understand the previous non-convergent results reported by Meru & Bate (2011a).
Artymowicz, Baruteau, Baruteau, Bate, Bate, Benz, Boss, Chow, Clarke, Cullen, Farzana Meru, Forgan, Gammie, Lodato, Lodato, Lodato, Masset, Matthew R. Bate, Mayer, Meglicki, Meru, Meru, Monaghan, Monaghan, Monaghan, Morris, Morris, Müller, Paardekooper, Paardekooper, Pickett, Pickett, Price, Price, Price, Price, Rafikov, Rice, Rice, Shakura, Toomre, von Neumann   +41 more
core   +1 more source

SPH Simulations of Galactic Gaseous Disk with Bar: Distribution and Kinematic Structure of Molecular Clouds toward the Galactic Center [PDF]

, 1998
We have performed Smoothed Particle Hydrodynamic (SPH) simulations to study the response of molecular clouds in the Galactic disk to a rotating bar and their subsequent evolution in the Galactic Center (GC) region. The Galactic potential in our models is
Athanassoula E., Binney J., C. W. Lee, Contopoulos G., Friedli D., Gerhard O. E., H. B. Ann, H. M. Lee, K. H. Kwon, Mulder W. A., Schwarz M. P., Wada K.   +11 more
core   +3 more sources

Numerical Modeling of Tank Cars Carrying Hazardous Materials With and Without Composite Metal Foam

Advanced Engineering Materials, EarlyView.
Large‐scale puncture models consisting of hazardous materials (HAZMATs) tank car with protective steel–steel composite metal foam (S–S CMF) are solved numerically. Tank car plate with added 10.91–13.33 mm thick S–S CMF layer does not puncture. Protective S–S CMF absorbs impact energy, reduces plate deformation, and prevents shear bands formation ...
Aman Kaushik, Afsaneh Rabiei
wiley   +1 more source

On Interpolation in SPH

Computer Modeling in Engineering & Sciences, 2001
The work presented provides an overview of different types of kernel interpolation used in the SPH method: conventional SPH, normalised SPH (NSPH), corrected kernel SPH (CSPH) and normalised corrected kernel SPH (NCSPH). These four methods are considered in a fully mesh-free form (using no background mesh).
Vignjevic, R., De Vuyst, T., Gourma, M.
openaire   +2 more sources

Resolving high Reynolds numbers in SPH simulations of subsonic turbulence

, 2011
Accounting for the Reynolds number is critical in numerical simulations of turbulence, particularly for subsonic flow. For Smoothed Particle Hydrodynamics (SPH) with constant artificial viscosity coefficient alpha, it is shown that the effective Reynolds
Price, Daniel J.
core   +1 more source

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source

The Influence of mangrove arrangement on wave transmission using smoothed particle hydrodynamics [PDF]

BIO Web of Conferences
Mangroves have been proven for their role as a natural barrier to various environmental risks such as abrasion and erosion. It helped improve water quality, reducing storms and providing habitat for marine species.
Trimulyono Andi, Ardi Setiawan Dikky, Samuel, Arswendo Adietya Berlian, Budi Santosa Ari Wibawa, Tuswan   +5 more
doaj   +1 more source