Units
Cardiac Chaste Units
Note: F=Farad, S=Siemen=Amp/Volt, A=Ampere, u=micro (ie mu).
| Quantity | Units | Notes
|
| Length | cm | hence surface-area-to-volume ratio is cm-1 etc
|
| Time | ms |
|
| Voltage or intra- or extracellular potential | mV |
|
| Capacitance per unit surface area | uF cm-2 | Cm, which we refer to as the capacitance, is actually a capacitance per unit area. The SI unit
|
| | | of capicitance is the Farad ( = Coulombs/Volts) (C=Q/V)
|
| Conductivities | mS cm-1 |
|
| (Stimulus) currents per unit volume | uA cm-3 | Applies to (intracellular) stimulus currents given to cells in mono/bidomain problems
|
| | | (ie a stimulus current as a RHS source term in the bidomain equations. Note we don't allow
|
| | | RHS extracellular stimuli)
|
| Currents per unit area | uA cm-2 | Applies to all ionic currents (single-cell/mono/bidomain equations), intracellular stimuli
|
| | | in single-cell problems or applied as Neumann boundary conditions, and extracellular
|
| | | stimuli through electrodes (which are also Neumann boundary conditions)
|
Cancer Chaste Units
| Quantity | Units | Notes
|
| Length | dimensionless | Nondimensionalised by typical cell diameter (approx 10-5 m)
|
| Time | hours |
|
