Results 41 to 50 of about 1,809,603 (303)

3D Hydrodynamical Simulations of a Galactic Fountain [PDF]

International Astronomical Union Colloquium, 1997
AbstractGalactic fountains are thought to be responsible for the formation of the observed intermediate and high velocity clouds in the Galactic halo. Threedimensional simulations have been carried out to determine the evolution of the disk gas as it enters the fountain, cools and returns to the Galactic disk. The descending cold gas, headed by a shock,
M. A. de Avillez, D. L. Berry, F. D. Kahn   +2 more
openaire   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

General Implicit Runge–Kutta Integrators for Multifluid Gas–Dust Aerodynamic Drag

The Astrophysical Journal
The integration of aerodynamic drag is a fundamental step in simulating dust dynamics in hydrodynamical simulations. We propose a novel integration scheme, designed to be compatible with Strang splitting techniques, which allows for the straightforward ...
Giovanni Tedeschi-Prades, Til Birnstiel, Klaus Dolag, Barbara Ercolano, Mark Hutchison   +4 more
doaj   +1 more source

Hydrodynamical Simulations of Recollimation Shocks within Relativistic Astrophysical Jets

Galaxies, 2018
Astrophysical jets launched from active galactic nuclei can remain tightly collimated over large distances due, in part, to recollimation shocks.
Christopher D. Kaye, Timothy V. Cawthorne, Philip A. Hughes   +2 more
doaj   +1 more source

Properties of cluster satellites in hydrodynamical simulations [PDF]

Monthly Notices of the Royal Astronomical Society, 2004
We analyze the dynamical and thermal evolution of dark matter and ICM in hydrodynamical Tree-SPH simulations of galaxy clusters. Starting from a sample of 17 high-resolution objects, with virial mass ranging from 3 10^{14} to 1.7 10^{15} M_sun, we follow the build-up of the systems in dark matter and hot gas through the repeated merging of satellites ...
TORMEN G., MOSCARDINI, LAURO, YOSHIDA N.
openaire   +4 more sources

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Merger-tree-based Galaxy Matching: A Comparative Study across Different Resolutions

The Astrophysical Journal
We introduce a novel halo/galaxy matching technique between two cosmological simulations with different resolutions, which utilizes the positions and masses of halos along their subhalo merger tree. With this tool, we conduct a study of resolution biases
Minyong Jung, Ji-hoon Kim, Boon Kiat Oh, Sungwook E. Hong, Jaehyun Lee, Juhan Kim   +5 more
doaj   +1 more source

Morphology, Transport, and Dynamics of Protein Adsorption in Open‐Cell Metal Foam

Advanced Engineering Materials, EarlyView.
Stainless steel (SS) open‐cell foams are shown to adsorb more protein per unit area than previously reported 316L SS and chromium oxide surfaces under static and flow conditions. An integrated approach combining 3D pore imaging, flow simulation, and protein adsorption experiments characterizes the foam’s performance.
Chinmaya Prerana Inguva, Joseph Lavoie, Afsaneh Rabiei   +2 more
wiley   +1 more source

Semi-analytical and hydrodynamical simulations of planet induced kinks

, 2022
Planets embedded in protoplanetary discs excite density waves that propagate in the disc forming a spiral wake and perturbing the gas velocity field. Such perturbations are now routinely observed with ALMA (so-called 'kinks' and 'doppler-flips'). However,
Fasano, Daniele
core   +1 more source

Simple Convective Accretion Flows (SCAFs): Explaining the ≈ −1 Density Scaling of Hot Accretion Flows around Compact Accretors

The Astrophysical Journal, 2023
Recent simulations find that hot gas accretion onto compact accretors is often highly turbulent and diskless, and shows a power-law density profile with slope α _ρ ≈ −1.
Wenrui Xu
doaj   +1 more source