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vbr-calc / vbr

The Very Broadband Rheology Calculator (VBRc): for fitting experimental data and measured properties in the Earth's upper mantle!
MIT License
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adding Liu et al. eBurgers water-dependent scaling #61

Closed chrishavlin closed 5 months ago

chrishavlin commented 1 year ago

Working on adding the recent Liu et al. eBurgers scaling (https://doi.org/10.1073/pnas.2221770120).

chrishavlin commented 1 year ago

Current output of the new cookbook example:

Screenshot from 2023-08-23 16-10-53

rows are water contents of 9, 77 and 143. 77 and 143 look OK-ish for a first pass, 9 looks totally wrong for the modulus. Not sure what's up with that yet....

chrishavlin commented 1 year ago
updated_liu

updated fig, now matches liu et al supplemental fig, except for some offset in the modulus coming from different reference modulus. can update the cookbook to use theirs.

chrishavlin commented 1 year ago

current summary: pretty sure the scaling is implemented as in Liu et al, but moduli are very low at mantle conditions, resulting in some pretty low absolute velocities. need to investigate further.

chrishavlin commented 5 months ago

I'm going to close this one for now -- when scaling to mantle conditions, the absolute velocities are very low. Might re-open in the future.