Asian Journal of Applied Sciences1996-3343xxxx-xxxxKnowledgia Review10.3923/ajaps.2008.265.285Abdul BariHayder A. Thabet Abd Al-RubaiRana 4200814The main objectives of this research is to study the
influence of Rayleigh number in turbulent and laminar region in parallel-plate
vertical plate so we will comparison the different between laminar and
turbulence in Rayleigh number and validate it with existing experimental
data available in literature. The channel was formed by two vertical parallel
plates. Velocity measurements were carried out for natural convection
flow in a symmetrically heated vertical channel. The plates taken were
12.5 mm thick the modified Rayleigh number (Ram) range 50 to 1x107
has been covered for symmetrically heated isothermal vertical surfaces.
The aspect ratio of the channel was kept constant (L/b = 12) and width
200 mm. One plate was kept at fixed temperature above and the other at
fixed temperature below the ambient temperature and local velocity and
temperature profile at three different sections of channel were reported
along with the local heat transfer coefficients and temperature distribution
on the heated wall.]]>Badr, H.M., M.A. Habib, S. Anwar, R. Ben-Mansour and S.A.M. Said,2006437384Baskaya, S., M.K. Aktas and N. Onur,199935273280Bessaih, R. and M. Kadja,200020141154Bessaih, R. and M. Kadja,20007153166Bianco, N., B. Morrone, S. Nardini and V. Naso,2000182345Bodia, J.R. and J.F. Osterle, 1962844044Fedorov, A.G. and R. Viskanta,199740 38493860Incropera, F.P. and D.P. DeWitt,19964th Edn.,pp: 171pp: 171Jaluria, Y.,19801st Edn.,pp: 78pp: 78La Pica, A., G. Rodono and R. Volpes,199336611616Miyamoto, M., Y. Katoh, J. Kurima and H. Sasaki,19861986pp: 1593-1598pp: 1593-1598Naylor, D., J.M. Floryan and J.D. Tarasuk,1991113620626Onur, N. and N.K. Aktas,199825389397Sparrow, E.M. and L.F. Azevedo, 19852818471857Straatman, A.G., D. Naylor, J.M. Floryan and J.D. Tarasuk,1994116145243Wirtz, R.A. and T. Haag,19851985