# UNDER CONSTRUCTION.  HARD HAT AREA!!

The 2 videos below depict an intensive application of physical principles to model the complexity of fluid flow through a rectangular conduit with an asymmetric branch point (the "side" branch is at $$90^{\circ}$$ to the straight branch.  Is this like cardiology?? Naw.  But it helps for understanding physical principles!  That's what this website is about. (I know how to make these models be more relevant in appearance but I'm busy with my day job too.  Just so's you know )

The first high-def video (above) starts by step-slicing through the structure to show velocity contours at various locations within.  Next it starts to step through from the inlet of the conduit showing velocity vectors associated with each slice.  Within a short distance of the inlet, the video begins an animation of a distorting fluid surface as it flows through the branch point.  The first video is at Reynolds number 500 and with equal flow division between the 2 branches.

Next is a high-def video of flow through the bifurcation that starts out by labeling fluid that has already entered into the straight branch.  Because the fluid is close to the "suction zone" (a force due to a pressure gradient acts on the fluid), it flows upstream along the sides of the conduit and flows out the side branch.  Yep, that happens.

The latter video is at Reynolds number 500 but with 75% of the flow going to the side branch.