The pressure difference creates a force that deflects the flight path. These areas result in one side receiving negative pressure, while the other side receives high pressure. 2 Relative pressure field with velocity vectors. The effect of the speed field is the pressure field, which can be seen in Picture 2. We can observe it in Picture 1 where we see two zones around the cylinder, one with a high speed value, the other with zero.
#Solidworks flow simulation reference axis free#
It is common to hear that the velocity of Newtonian fluid on the wall is zero, but we should correctly say that the velocity of fluid relative to the wall is zero.Īs a result, two zones are created on the rotating cylinder, a zone with an increased speed, where the speed of free flow is increased through the zone in which the fluid movement resulting from the rotation of the cylinder is directed towards the direction of free flow, and the zone where the phenomenon is in reverse state. This effect has been associated with the boundary layer and fluid viscosity. Flow patterns along with the velocity field around the cylinder rotating at 600 rpm. Let’s take a closer look at this phenomenon.
#Solidworks flow simulation reference axis full#
However, a full description of the phenomenon and the model was created by Heinrich Gustav Magnus, however, the source of the phenomenon itself remained unknown for a long time.
The reference to sport is not accidental, because for the first time the given phenomenon was noticed by Sir Isaac Newton during tennis competitions where he was able to correctly determine that the turn of the ball depends on the speed of rotation.
We will introduce this subject today with the help of SOLIDWORKS Flow Simulation. The phenomenon of force arising as a result of object rotation in the velocity field is called the Magnus Effect. Changing the track was associated with how much we “curved” the ball. Virtually every one of us during school time, playing any sport in which we used the ball, could hear commands to “curve the ball”, “use your wrist” or “don’t kick with the point of your shoe.” The ball with proper rotation was able to fly wherever we wanted and turned during the flight.