Multi-fluid dynamical model of isothermal gas and buoyant dispersed particles: Monodisperse mixture, reference solution of DustyWave problem as test for CFD-solvers, effective sound speed for high and low mutual drag

2022 ◽  
pp. 103935
Author(s):  
Olga P. Stoyanovskaya ◽  
Vitaliy V. Grigoryev ◽  
Tatiana A. Savvateeva ◽  
Maksim S. Arendarenko ◽  
Elizaveta A. Isaenko ◽  
...  
Keyword(s):  
Sound Speed ◽  
Dynamical Model ◽  
Reference Solution ◽  
Dispersed Particles ◽  
Isothermal Gas ◽  
Fluid Dynamical Model

Analysis of powder-snow avalanches using three-dimensional topographic data

1993 ◽  
Vol 18 ◽  
pp. 102-106 ◽  
Author(s):  
Yusuke Fukushima ◽  
Norio Hayakawa
Keyword(s):  
Three Dimensional ◽  
Dynamical Model ◽  
Snow Avalanches ◽  
Topographic Data ◽  
Reasonable Prediction ◽  
Fluid Dynamical Model

A fluid-dynamical model of powder-snow avalanches is developed which takes into account three-dimensional topography and can compute an avalanche’s running course. The model also predicts the variations of height, speed and concentration of snow particles in the avalanche, as well as the level of turbulence. Application of the model to the Maseguchi avalanche, which occurred in 1986 at Niigata, Japan, shows it can provide reasonable prediction of the running course, height and speed of an avalanche.

scholarly journals Study of vorticity in an exact rotating hydro model

2015 ◽  
Vol 24 (02) ◽  
pp. 1550013 ◽  
Author(s):  
L. P. Csernai ◽  
J. H. Inderhaug
Keyword(s):  
Exact Solution ◽  
Heavy Ion ◽  
Dynamical Model ◽  
Heavy Ion Reactions ◽  
Fluid Dynamical Model

We study a semianalytic exact solution of the fluid dynamical model of heavy ion reactions and evaluate some observable signs of the rotation.

THE DYNAMICS OF PRESSURELESS DUST CLOUDS AND DELTA WAVES

2004 ◽  
Vol 01 (02) ◽  
pp. 315-327 ◽  
Author(s):  
RANDALL J. LEVEQUE
Keyword(s):  
Sound Speed ◽  
Gas Dynamics ◽  
Delta Waves ◽  
Dust Clouds ◽  
Delta Shock ◽  
Initial Stage ◽  
Isothermal Gas ◽  
Volume Method ◽  
Rarefaction Shock ◽  
Finite Extent

The equations of isothermal gas dynamics are studied in the limit when the sound speed vanishes, giving the so-called pressureless gas equations. The collision of two clouds of dust is modeled with these equations in the case where the clouds have finite extent and are surrounded by vacuum. The delta shock that arises in the initial stage of the collision evolves into a delta rarefaction-shock and then into a delta double-rarefaction as first one cloud and then the other is fully accreted into the singularity. A high-resolution finite volume method that captures this behavior is also presented and numerical results shown.

Symplectic embedding of a fluid dynamical model

2004 ◽  
Vol 37 (5) ◽  
pp. 1927-1944 ◽  
Author(s):  
A C R Mendes ◽  
C Neves ◽  
W Oliveira
Keyword(s):  
Dynamical Model ◽  
Symplectic Embedding ◽  
Fluid Dynamical Model

scholarly journals Multiplicity fluctuations at the quark-hadron phase transition from a fluid dynamical model

2015 ◽  
Vol 599 ◽  
pp. 012012 ◽  
Author(s):  
Christoph Herold ◽  
Marlene Nahrgang ◽  
Yupeng Yan ◽  
Chinorat Kobdaj
Keyword(s):  
Phase Transition ◽  
Dynamical Model ◽  
Hadron Phase ◽  
Fluid Dynamical Model
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