Eshagh Bazhdan - Institution Non-profit kherad boushehr,
Fatmhe Mohammadian - University valie asr Rafsanjan

In this paper, the importance of inviscid flow around a cylinder that depends on what factors inviscid flow. And how the changes will be discussed. Stability of inviscid flow has been studied by many people and some useful metrics are obtained. Mathematical results for inviscid flow like water… and gives good results for current flow. It also changes the flow of an incompressible inviscid and viscous paid with numerical models. The inviscid numerical model in order to clarify how physical problems for large Reynolds numbers which marks it out in the open to change. It also changes the flow of inviscid potential flow, incompressible and irrotational review. Potential flow outside the boundary layer, how it has changed and the results compared with the cylindrical shape of the numerical model. It also examines changes in the boundary layer. First, the speed gradually from zero to the free-stream velocity outside the boundary layer appears. The results show that the thickness of the boundary layer velocity vectors to change.

inviscid fluid, Circular cylinders, incompressible, boundary layer