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Numerical simulation of dilute particle laden flows by wavelet BEM-FEMRavnik, Jure ...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.Vir: Computer methods in applied mechanics and engineering. - ISSN 0045-7825 (Vol. 197, iss. 6/8, Jan. 2008, str. 789-805)Vrsta gradiva - članek, sestavni delLeto - 2008Jezik - angleškiCOBISS.SI-ID - 11868182
Avtor
Ravnik, Jure |
Škerget, Leopold |
Hriberšek, Matjaž |
Žunič, Zoran
Teme
metoda končnih elementov |
hitrostno vrtinčna formulacija |
diskretna valčna transformacija |
Lagrangevo sledenje delcev |
tok preko stopnice |
tok okoli togega telesa |
redka suspenzija delcev |
boundary element method |
velocity-vertocity formulation |
discrete wavelet transform |
Lagrangian particle tracking |
backward-facing step |
bluff body flow |
dilute particle suspension
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Ravnik, Jure | 24331 |
Škerget, Leopold | 06428 |
Hriberšek, Matjaž | 11167 |
Žunič, Zoran | 12653 |
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