<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div>Actually, I am still having a bit of trouble adding the tracers<span> into the mesh, as the tracer setup does not seem to be able to find the tracers in my file. I will attach my coordinate and my tracer file. It seems to me that the tracers should easily fall within the mesh generated by the coordinate file. <br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br><span></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span>The other oddity is that when I set tracer_ic_method=0, I also get an error. Is this because Random tracer generation only works for global meshes as opposed to regional
meshes ? I ask this because I was able to successfully run ( as suggested) Cookbook7. I'll attach the two output files, (random) using </span><span>tracer_ic_method=0 and (input) using </span><span>tracer_ic_method=1.</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">As a corollary, I am trying to use the tracers in conjunction with the low viscosity channel in an attempt to get a similar result as one would get if they were to implement "weak nodes". Is that the correct interpretation of the low viscosity channel/wedge function in CitcomS ? Perhaps imposing them through changing viscosity_structures.c would be better?</div><div style="color: rgb(0, 0, 0); font-size:
16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">thank you for your time,</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">Scott<br><span></span></div></div></body></html>