Investigation of air jet impingement drying with forced convection of moist things

In this work the effect of drying with jet of air of two dissimilar moist thing geometries with whole and straight semi-circular on the enhancement of heat transfer and decrement of moisture amount was numerically examined. The drying jet had a laminar flow characteristic and two-dimensional jet situated at a fixed jet space from the moist thing. The moist thing diameter, jet space from the moist thing and height of jet initial were taken as stable in whole situations. Streamlines and isotherms were visualized around the things for dissimilar velocities of jet A method of finite volume was used to figure out the conservation equations by employing software program of ANSYS Fluent 17.0. Computations were conducted for dissimilar Re, so, Re = 100, 200 and 300. It was obtained well accord with scalar and empirical output found in the reference. The results illustrated that the whole circular moist thing had greater good heat and moisture transfer performance than that of the straight semi-circular moist thing. Furthermore, it was seen that an increase of Re number had an affirmative effect on heat and moisture transfer As locality, drying of jet was appeared to be most powerful close to the stillness point on the front face of the things.