20.500.12556/DKUM-27397
Numerical simulation of dilute particle laden flows by wavelet BEM-FEM
A wavelet transform based BEM and FEM numerical scheme was used to simulate laminar viscous flow. The velocity-vorticity formulation of the Navier-Stokes equations was used. The flow simulation algorithm was coupled with a Lagrangian particle tracking scheme for dilute suspensions of massless particles and particles without inertia. The proposed numerical approach was used to simulate flow and particle paths for two test cases: flow over a backward-facing step and flow past a circular cylinder. We present methods of calculating the pressure and stream function field at the end of each time step. The pressure field was used to calculate drag and lift coefficients, which enable qualitative comparison of our results with the benchmark. The stream function enabled the comparison of streamlines and massless particle paths in steady state low Reynolds number value flow fields, and thus provided an estimate on the accuracy of the particle tracking algorithm. Unsteady higher Reynolds number value flows were investigated in terms of particle distributions in vortex streets in the wake of the cylinder and behind the step. Sedimentation of particles without inertia was studied in the flow field behind a backward-facing step at Reynolds number value 5000.
boundary element method
velocity-vertocity formulation
discrete wavelet transform
Lagrangian particle tracking
backward-facing step
bluff body flow
dilute particle suspension
metoda končnih elementov
hitrostno vrtinčna formulacija
diskretna valčna transformacija
Lagrangevo sledenje delcev
tok preko stopnice
tok okoli togega telesa
redka suspenzija delcev
true
false
false
Angleški jezik
Angleški jezik
Neznano
2012-06-01 10:57:37
2012-06-01 10:57:37
2022-04-15 03:44:18
2019-07-10 12:16:21
2008
0
0
0000-00-00
NiDoloceno
NiDoloceno
NiDoloceno
0000-00-00
0000-00-00
0000-00-00
532
11868182
0045-7825
URN:SI:UM:DK:6OOV1CFZ
http://dx.doi.org/10.1016/j.cma.2007.09.007
1
https://dk.um.si/Dokument.php?lang=slv&id=36692
Fakulteta za strojništvo
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