Reza Bayat - Sama technical and vocational training college, Islamic Azad University,Mashhad Branch, Mashhad, Iran

Governing equations in the boundary layer induced by a steady incompressible oblique stagnation flow axisymmetrically impinging on a vertical constant-temperature cylinder along with mixed convection heat transfer due to buoyancy forces of gravity, have been reduced to ODEs using similarity transformation and solved numerically. Supposing constant strength for the oblique flow, by changing the obliqueness angle α from zero to 90°, solution of equations system has been repeated at any specific value of α in two cases of assisting or opposing flow. The resulting data show that how flow streamlines change by assisting or opposin effect of the gravittional forces.

oblique stagnation-point flow, axisymmetric, vertical circular cylinder, mixed convection