Transient laminar forced convection with arbitrary variation in the wall heat flux

Alternative models for transient convection heat transfer in external flows over a plate exposed to a variable heat flux

“…The unsteady system behaviour is entirely due to the generation of an impulsive heat flux step change on the upper face of the flat surface. This work provides new data on the unsteady behaviour of the heat exchange coefficient, in addition to other previous theoretical [4][5][6][7][8]16] and experimental [13][14][15] (e.g., by using the flash method) studies. Moreover, the results are useful in engineering applications where a transient boundary condition and a thin contact surface are encountered.…”

Heat and Mass Transfer in External Boundary Layer Flows Using Nanofluids

“…In order to reach this goal, the integral formalism is extended to nanofluids. This work is the continuation of previous studies carried out to develop free and forced convection theories of external boundary layer flows by using the integral formalism (Polidori et al, 1999;Polidori et al, 2000;Polidori & Padet, 2002;Polidori et al, 2003;Varga et al, 2004) as well as to investigate convective heat and mass transfer properties of nanofluids Nguyen et al, 2009;Polidori et al, 2007;Popa et al, 2010) where both viscosity and conductivity analytical models have been used and compared with experimental data. The Brownian motion has also been taken into account.…”

Skin-friction drag analysis from the forced convection modeling in simplified underwater swimming

“…From mathematical criteria a fourth order shape has been advocated by Polidori et al (1999). Thus the velocity profile across the dynamical boundary-layer is expressed as a fourth-order polynomial using the Pohlhausen method (Polidori and Padet, 2002) Uðx; y;TÞ…”