Numerical analysis of roll waves generation on non-Newtonian fluids flowing down an inclined plane
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2014-01-01
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This article aims to determine roll waves generation criteria for mudflow events. A representative system of equations to mudflows is reached through Cauchy's equations (mass and momentum conservation) with proper stress tensor (non-Newtonian fluid) in shallow water conditions. Linear stability analysis is then applied to the system and two roll waves generation criteria are found: one related to Froude number and another related to flow disturbance frequency. Numerical simulations for both Newtonian and non-Newtonian fluids were carried. Good agreement was observed between numerical results and theoretical criteria. © (2014) Trans Tech Publications, Switzerland.
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Advanced Materials Research, v. 1006-1007, p. 160-167.
