Abstract
A study is made of time-dependent flow and heat transfer of an incompressible Boussinesq fluid in an oscillating infinite cylinder along the horizontal axis under micro-gravity environment. The flow and heat transfer are initiated by forcing a periodic oscillation on the cylinder containing an incompressible fluid and, simultaneously, imposing an abrupt change of wall temperature. For the asymptotic analysis, Boussinesq approximation is adopted. Assuming the approximation of high Reynolds number (R<SUB>e</SUB> ≫ 1), small magnitude of thermal expansion of the fluid (ϵ ≪ 1) and moderate amplitude of the oscillation (δ), a theoretical asymptotic analysis has been performed on flow and temperature field. The results clarify the reason why heat transfer could be agumented along the axis of oscillation. The predictions are consistent with the previous numerical results.
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