The Initial fluid has negligible Pb2+ everywhere but the central node

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Presentation transcript:

The Initial fluid has negligible Pb2+ everywhere but the central node Click Edit… Simulation lasts for 1,000 days Negligible Pb2+ concentration. 1 mmolal Pb2+ in the central node, #24.

Inlet fluid is identical to the Initial fluid

Specify domain size, gridding, and flow rate on the Domain pane. Domain is 0.5 m long, divided into 49 nodal blocks (Node 24 is in the center) No flow in the simulation → diffusion is the only transport process.

Set various mass transport properties on the Medium pane. Set diffusion coefficient for the domain

Tip: Use logarithmic spacing for plotted results Config → Output… Tip: Use logarithmic spacing for plotted results

Plot Pb2+ concentratin after 1, 10, 100, 1000 days Pb2+ diffuses outward from the center node over 1,000 days