The gravity currents on the inclined boundaries are formed when the inflow fluid has a density difference with the ambient fluid and a tangential component of gravity becomes the driving force. If the density difference arises from the suspension of particles, the currents are known as particle-driven density currents, in which the local density of the gravity current depends on the concentration of particles. A low Reynolds k-ε turbulence model is used to simulate three dimensional turbidity currents. Also a laboratory apparatus was built to study the 3D flow resulting from the release of particle laden density currents on a sloping surface in a channel of freshwater via a sluice gate and Kaolin was used as the suspended material. The height, width, velocity and concentration profiles are calculated and compared with the laboratory experiments which show good agreement. Averaged parameters were obtained and Entrainment coefficients against Richardson number were acquired without any approximation and simplification which show the same trend as previous 2D experimental data.
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ASME 2006 International Mechanical Engineering Congress and
Exposition
November 5–10, 2006
Chicago, Illinois, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4770-5
PROCEEDINGS PAPER
3-D Modeling of Particle Laden Density Current Available to Purchase
B. Firoozabadi,
B. Firoozabadi
Sharif University of Technology
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H. Ghasvari-Jahromi,
H. Ghasvari-Jahromi
Iran University of Science and Technology
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S. M. H. Moosavi Hekmati
S. M. H. Moosavi Hekmati
Sharif University of Technology
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S. Hormozi
Sharif University of Technology
B. Firoozabadi
Sharif University of Technology
H. Ghasvari-Jahromi
Iran University of Science and Technology
S. M. H. Moosavi Hekmati
Sharif University of Technology
Paper No:
IMECE2006-14640, pp. 669-677; 9 pages
Published Online:
December 14, 2007
Citation
Hormozi, S, Firoozabadi, B, Ghasvari-Jahromi, H, & Hekmati, SMHM. "3-D Modeling of Particle Laden Density Current." Proceedings of the ASME 2006 International Mechanical Engineering Congress and Exposition. Fluids Engineering. Chicago, Illinois, USA. November 5–10, 2006. pp. 669-677. ASME. https://doi.org/10.1115/IMECE2006-14640
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