diabayes.forward_models.ageing_law#

diabayes.forward_models.ageing_law(v: Float, variables: Variables, params: RSFParams, constants: RSFConstants) → Float[source]#

The conventional ageing law state evolution formulation

\[\frac{\mathrm{d}\theta}{\mathrm{d}t} = 1 - \frac{v \theta}{D_c}\]

Parameters:

v (Float) – Instantaneous fault slip rate [m/s].
variables (Variables) – The friction coefficient mu and state parameter theta
params (RSFParams) – The rate-and-state parameters, including D_c
constants (RSFConstants) – The constant parameters mu0 and v0 (not used)

Returns:

dtheta – The rate of change of the state variable [s/s]

Return type:

Float