Hello NickFL, I initialized the flow from the inlet (Vx=Vy=0 ms, Vz=1 m/s) as you can see in image 1. I also reduced the step size to 0.05 (in the case of Re=1000) as you suggested which brought me a more stable result compared to before (Image 2). But the oscillation is again more prevalent where the Reynolds number is 1500 (Image 3). The residual of continuity equation doesn’t fall below the 10^-3 and the curve remains flattened out. Would you say this solution where the residual curve behave like that is acceptable? Or it not, what would you further suggest me to do?
   
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