Abonnement à la biblothèque: Guest
International Symposium on Transient Convective Heat Transfer
August, 19-23, 1996, Çesme, Turkey

DOI: 10.1615/ICHMT.1996.TransientConvHeatTransf


ISBN Print: 978-1-56700-084-9

ANALYSIS OF TRANSIENT PERIODIC LAMINAR INTERNAL FORCED CONVECTION VIA ASYMPTOTIC SOLUTION OF COMPLEX EIGENVALUE PROBLEMS

DOI: 10.1615/ICHMT.1996.TransientConvHeatTransf.60
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RÉSUMÉ

Laminar forced convection inside parallel-plate channels with periodic variation of inlet temperature is analysed. The Method of Matched Asymptotic Expansions (MMAE) is utilized to obtain a closed form asymptotic solution of the complex eigenvalue problem. The asymptotic solution presented is accurate for all eigenvalues when the dimensionless frequency of oscillation at inlet is small (Ω<1). The asymptotic solution presented is inaccurate for small eigenvalues when the dimensionless frequency of oscillation at inlet is large (Ω>1) but yields accurate predictions for large eigenvalues.

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