High-fidelity modeling and numerical simulation of cratering induced by the interaction of a supersonic jet with a granular bed of solid particles

2018 ◽  
Vol 99 ◽  
pp. 1-29 ◽  
Author(s):  
Kaushik Balakrishnan ◽  
Josette Bellan
Keyword(s):  
Numerical Simulation ◽  
Supersonic Jet ◽  
Solid Particles ◽  
High Fidelity ◽  
Granular Bed

scholarly journals Aeroacoustic resonance and self-excitation in screeching and impinging supersonic jets – A review

2019 ◽  
Vol 18 (2-3) ◽  
pp. 118-188 ◽  
Author(s):  
Daniel Edgington-Mitchell
Keyword(s):  
Numerical Simulation ◽  
High Intensity ◽  
Stability Theory ◽  
Historical Perspective ◽  
Simulation Experiment ◽  
Supersonic Jet ◽  
Supersonic Jets ◽  
Critical Assessment ◽  
High Fidelity ◽  
Free Jets

Supersonic jets, particularly shock-containing jets, often exhibit high-intensity, discrete-frequency acoustic tones. These tones are the signature of an aeroacoustic resonance loop established by the flow. This paper considers two of the classical forms of supersonic jet resonance: screech in shock-containing free jets and tones generated by the impingement of a jet against a surface. The first half of the paper provides a historical perspective on research into both forms of resonance, ranging from the seminal works of Alan Powell to recent contributions from high-fidelity numerical simulation, experiment, and stability theory. The second half of the paper provides a critical assessment of current understanding around the four processes that characterize jet resonance: a downstream propagation of energy, an acoustic generation mechanism, an upstream propagation of energy, and a receptivity mechanism.

scholarly journals Numerical simulation of gas-solid flow in an interconnected fluidized bed

2015 ◽  
Vol 19 (1) ◽  
pp. 317-328 ◽  
Author(s):  
Giuseppe Canneto ◽  
Cesare Freda ◽  
Giacobbe Braccio
Keyword(s):  
Numerical Simulation ◽  
Fluidized Bed ◽  
Experimental Tests ◽  
Solid Particles ◽  
Multiphase Model ◽  
Cold Model ◽  
Conservation Equations ◽  
Solid Flow

The gas-particles flow in an interconnected bubbling fluidized cold model is simulated using a commercial CFD package by Ansys. Conservation equations of mass and momentum are solved using the Eulerian granular multiphase model. Bubbles formation and their paths are analyzed to investigate the behaviour of the bed at different gas velocities. Experimental tests, carried out by the cold model, are compared with simulation runs to study the fluidization quality and to estimate the circulation of solid particles in the bed.

Numerical simulation of hydraulic conveying of solid particles through a narrow elbow

2021 ◽  
Author(s):  
Elmar Anton Schnorr Filho ◽  
Nicolao Lima ◽  
Erick de Moraes Franklin
Keyword(s):  
Numerical Simulation ◽  
Solid Particles

scholarly journals Numerical Simulation of the Motion of Solid Particles in a Stirred Tank

2019 ◽  
Vol 37 ◽  
pp. 109-116
Author(s):  
Koorosh Zaheri ◽  
Morteza Bayareh ◽  
Afshin Nadooshan
Keyword(s):  
Numerical Simulation ◽  
Solid Particles ◽  
Stirred Tank
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