Abstract
Three‐dimensional laminar forced convective heat transfer in ribbed square channels is investigated. In these channels, transverse and angled ribs are placed on one or two of the walls to form a repetitive geometry. After a short distance from the entrance, also the flow and the dimensionless thermal fields repeat themselves from module to module allowing the assumption of periodic, or anti‐periodic, conditions at the inlet/outlet sections of the calculation cell. Prescribed temperature boundary conditions are assumed at all solid walls, including the ribs. Pressure drop and heat transfer characteristics are compared for rib angles ranging from 90° (transverse ribs) to 45°, and different values of the Reynolds number. The influence of rib geometries is investigated below and above the onset of the self‐sustained flow oscillations that precede the transition to turbulence. Numerical simulations are carried out employing an equal order finite‐element procedure based on a projection algorithm.
Subject
Applied Mathematics,Computer Science Applications,Mechanical Engineering,Mechanics of Materials
Reference21 articles.
1. Berner, C., Durst, F. and McEligot, D.M. (1984), “Flow around baffles”, ASME J. Heat Transfer, Vol. 106, pp. 743–9.
2. Cheung, C.H. and Huang, W.H. (1991), “Numerical prediction for laminar forced convection in parallel‐plate channels with transverse fin arrays”, Int. J. Heat Mass Transfer, Vol. 34, pp. 2739–49.
3. Comini, G., Del Giudice, S. and Nonino, C. (1994), Finite Element Analysis in Heat Transfer: Basic Formulation and Linear Problems, Taylor & Francis, Washington, DC.
4. Feigenbaum, M.J. (1978), “Quantitative universality for a class of nonlinear transformations”, Journal of Statistical Physics, Vol. 19, pp. 24–52.
5. Kelkar, K.M. and Patankar, S.V. (1987), “Numerical prediction of flow and heat transfer in a parallel plate with staggered fins”, ASME J. Heat Transfer, Vol. 109, pp. 25–30.
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