Published 6 issues per year
ISSN Print: 2152-5102
ISSN Online: 2152-5110
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Effects of Efflux Velocity and Buoyancy on Fuel Jets
ABSTRACT
This paper investigates the effects of efflux velocity and buoyancy on the flow dynamics of round jets with coflowing hot ambient. Such jets are relevant to the mixing of fuel and air that occur in various combustion devices. The governing equations for the jet flow are solved using the Standard k-ε model, Fully Implicit Numerical Scheme (FINS) and Tridiagonal Matrix Algorithm (TDMA). Calculations are made to discern the effects of efflux velocity and buoyancy due to flow configuration on the mean and turbulent properties of the jets. Obtained results show that change in efflux velocity affects the jet flow largely but change in jet configuration affects the flow significantly at low efflux velocity only. Nonetheless mean vorticity remains unaffected against the change in jet configuration both at high and low efflux velocity.