Numbercle Study Longitudinal Vortex Generration And Heat Transfer Enchancement

This paper mainly studied generation and develepment of the longitudinal vortex and its mechanism for the heat transfer enchancement. We put out a kind of new-style longitudinal vortex generater-columner longitudinal vortex generater cut by slop on the base of summing up the work which got dy the learners at the past. And then we open its influnce on the structure of eddy movement and'find its specility of the convection heat exchange strenthen by the numerical simulation methed.Through emploitement of the software PHOENICS. I setted up the physical modele and calculation-domain for the conviction heat transfer enchancement by the longitudinal vortex, and did the numerical value simulation for the chang of the velocity filed and temperature filed which influnced by LVG.At the same time,I studied the generation develepment of the longitudinal and its mechanism for the heat transfer enchancement.By the analycise of the result, I got the pricipium rule of how the size, ratio corner and distence of the LVG have influence on the generation and develepment of longitudinal vortex , and gave out the relative construct parameter scope. These work filled up the blank of experiment.And the more important point is that it gave some advance for the experiments at the follow time.