A numerical inve
stigation of double-diffu
sive mixed convection within a two-dimen
sional, horizontal annulu
s ha
s been carried out. The outer cylinder wa
s made to rotate in an anti-clockwi
se direction to introduce the forced convection effect. In addition, the
solutal and thermal buoyancy force
s are
su
stained by maintaining the inner cylinder at a uniform but higher concentration and temperature value
s, re
spectively. The flow i
s con
sidered to operate in the laminar regime under
steady
state condition
s. Moreover, the tran
sport equation
s are
solved u
sing the Galerkin weighted re
sidual method by incorporating a non-uniform me
sh
size. The heat and ma
ss tran
sfer rate
s were clo
sely examined u
sing
several dimen
sionle
ss group
s in a wide domain of operating condition
s. The con
sidered domain
s in thi
s inve
stigation are a
s follow
s:
style=""text-decoration:none; color:black"" href=""/science?_ob=MathURL&_method=retrieve&_udi=B6VT1-4HDGBTR-2&_mathId=mml1&_user=10&_cdi=6277&_rdoc=4&_handle=V-WA-A-W-AU-MsSAYWA-UUA-U-AACVDUWDUV-AACWWYBCUV-EYUCYBEVC-AU-U&_acct=C000050221&_version=1&_userid=10&md5=f54a88014796f4ad3f297c2ca334e4f0"" title=""Click to view the MathML source"">5Re150,
style=""text-decoration:none; color:black"" href=""/science?_ob=MathURL&_method=retrieve&_udi=B6VT1-4HDGBTR-2&_mathId=mml2&_user=10&_cdi=6277&_rdoc=4&_handle=V-WA-A-W-AU-MsSAYWA-UUA-U-AACVDUWDUV-AACWWYBCUV-EYUCYBEVC-AU-U&_acct=C000050221&_version=1&_userid=10&md5=535bb252967b38c83edfa6df3ae75074"" title=""Click to view the MathML source"">0.01Le10,
style=""text-decoration:none; color:black"" href=""/science?_ob=MathURL&_method=retrieve&_udi=B6VT1-4HDGBTR-2&_mathId=mml3&_user=10&_cdi=6277&_rdoc=4&_handle=V-WA-A-W-AU-MsSAYWA-UUA-U-AACVDUWDUV-AACWWYBCUV-EYUCYBEVC-AU-U&_acct=C000050221&_version=1&_userid=10&md5=dae507784b860fad6dca3d840a17b15a"" title=""Click to view the MathML source"">10<sup>3sup>Ra10<sup>5sup>,
style=""text-decoration:none; color:black"" href=""/science?_ob=MathURL&_method=retrieve&_udi=B6VT1-4HDGBTR-2&_mathId=mml4&_user=10&_cdi=6277&_rdoc=4&_handle=V-WA-A-W-AU-MsSAYWA-UUA-U-AACVDUWDUV-AACWWYBCUV-EYUCYBEVC-AU-U&_acct=C000050221&_version=1&_userid=10&md5=ae4098bec82c805dd4a000411495c948"" title=""Click to view the MathML source"">−15N15,
style=""text-decoration:none; color:black"" href=""/science?_ob=MathURL&_method=retrieve&_udi=B6VT1-4HDGBTR-2&_mathId=mml5&_user=10&_cdi=6277&_rdoc=4&_handle=V-WA-A-W-AU-MsSAYWA-UUA-U-AACVDUWDUV-AACWWYBCUV-EYUCYBEVC-AU-U&_acct=C000050221&_version=1&_userid=10&md5=321c0a6ba383f53a54c22e5406f935ca"" title=""Click to view the MathML source"">0.7Pr10,
style=""text-decoration:none; color:black"" href=""/science?_ob=MathURL&_method=retrieve&_udi=B6VT1-4HDGBTR-2&_mathId=mml6&_user=10&_cdi=6277&_rdoc=4&_handle=V-WA-A-W-AU-MsSAYWA-UUA-U-AACVDUWDUV-AACWWYBCUV-EYUCYBEVC-AU-U&_acct=C000050221&_version=1&_userid=10&md5=d1dd3594d1f9d6d17a849c3d8c256e05"" title=""Click to view the MathML source"">0.5σ5 and
style=""text-decoration:none; color:black"" href=""/science?_ob=MathURL&_method=retrieve&_udi=B6VT1-4HDGBTR-2&_mathId=mml7&_user=10&_cdi=6277&_rdoc=4&_handle=V-WA-A-W-AU-MsSAYWA-UUA-U-AACVDUWDUV-AACWWYBCUV-EYUCYBEVC-AU-U&_acct=C000050221&_version=1&_userid=10&md5=d1480eeeb56ae07a970aa22c9f1a415f"" title=""Click to view the MathML source"">−0.75ε0.75. The whole flow regime
s were defined according to the relative value
s of Reynold
s number and
solutal and thermal Gra
shof number. Furthermore, the prediction
s of the average Nu
sselt and Sherwood number
s were obtained for the operating range of the Lewi
s and buoyancy ratio number
s.