Figure from:Free convective flow of heat generating/absorbing fluid between vertical porous plates with periodic heat input

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Fig. 12. Influence of suction/injection (s) over heat sink/sources (6). temperature and velocity of fluid vary from plate to plate as could be observed in Fig. 4 where temperature is higher near the plate (Y= 1) where fluid is being injected into the channel than the plate (Y= — 1) where suction of fluid from the system is taking place. A similar trend is observed in Fig. 5 where fluid velocity is higher near the plate with — Figure 12 Influence of suction/injection (s) over heat sink/sources (6). temperature and velocity of fluid vary from plate to plate as could be observed in Fig. 4 where temperature is higher near the plate (Y= 1) where fluid is being injected into the channel than the plate (Y= — 1) where suction of fluid from the system is taking place. A similar trend is observed in Fig. 5 where fluid velocity is higher near the plate with

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B.K. Jha, A.O. Ajibade / International Communications in Heat and Mass Transfer 36 (2009) 624-631 term in this problem is assumed to be the type given by Foraboschi and Federico [9]

Fig. 2. Temperature profiles for different Pr. B.K. Jha, A.O. Ajibade / International Communications in Heat and Mass Transfer 36 (2009) 624-631 The dimensionless quantities introduced in Eq. (7) are defined as

Fig. 3. Velocity profiles for different Pr. Four basic parameters governed the flow in the channel namely; the Strouhal number (St) which is directly proportional to the frequency of heating of the channel walls, the Prandtl number (Pr), which is inversely proportional to the thermal diffusivity of the working fluid, suction and injection parameter (s), which were

Fig. 9. Velocity distribution for different source/sink (6).

Fig. 6. Temperature profile for different Strouhal number (St).

B.K. Jha, A.O. Ajibade / International Communications in Heat and Mass Transfer 36 (2009) 624-631 Fig. 4. Temperature profile for different suction (s).

Fig. 7. Velocity profile for different Strouhal number (St).

Fig. 8. Temperature distribution for different source/sink (6).

Fig. 5. Velocity profile for different suction (s).

B.K. Jha, A.O. Ajibade / International Communications in Heat and Mass Transfer 36 (2009) 624-631 Fig. 10. Effect of suction/injection on phase of velocity.

Fig. 15. Influence of Strouhal number (St) on heat sink (6).

Fig. 13. Influence of heat sink/source (6) on suction (s).

Fig. 11. Phase of velocity for different Strouhal number (St).

Fig. 14. Influence of heat sink on Strouhal number (St).

Fig. 21. Rate of Heat transfer (Nu) on the wall with injection (Y= 1).

Fig. 18. Skin Friction on the wall with injection (Y= 1).

Fig. 19. Skin friction on the wall with injection (Y=1). B.K. Jha, A.O. Ajibade / International Communications in Heat and Mass Transfer 36 (2009) 624-631

Fig. 17. Skin friction on the wall with suction (Y= —1). Fig. 16. Skin Friction on the wall with suction (s) (Y= —1).

Fig. 20. Rate of Heat transfer (Nu) on the wall with injection (Y= 1).

Fig. 23. Rate of Heat transfer (Nu) on the wall with suction (Y= —1). B.K. Jha, A.O. Ajibade / International Communications in Heat and Mass Transfer 36 (2009) 624-631

Fig. 22. Rate of Heat transfer (Nu) on the wall with suction (Y= —1).