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added Basic function DEBYE_LENGTH and test case zeta

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David Parkhurst 2020-08-17 09:41:37 -06:00
parent 5c3f67fc1d
commit 3524b835a4
1 changed files with 17 additions and 0 deletions
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RELEASE.TXT
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@ -1,4 +1,18 @@
Version @PHREEQC_VER@: @PHREEQC_DATE@ Version @PHREEQC_VER@: @PHREEQC_DATE@
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August 17, 2020
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PHREEQC: A new Basic function DEBYE_LENGTH was added to return the
value of the Debye length, typically notated kappa^-1. The value is
related to the decay of the surface potential with distance from the
surface. Theory says that the potential at distance d from the surface
is equal to psi0*exp(d/DL), where psi0 is the surface potential and DL is
the Debye length. The lengh is inversely related to ionic strength.
Example:
10 DL = DEBYE_LENGTH
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August 11, 2020 August 11, 2020
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@ -10,6 +24,9 @@ Version @PHREEQC_VER@: @PHREEQC_DATE@
KINETICS_RAW, or KINETICS_MIX. Now, the correct proportional relation should KINETICS_RAW, or KINETICS_MIX. Now, the correct proportional relation should
be maintained if the moles in EQUILIBRIUM_PHASES or KINETICS are changed. be maintained if the moles in EQUILIBRIUM_PHASES or KINETICS are changed.
An error message will result if, for example, EQUILIBRIUM_PHASES is modified
to remove the phase that EXCHANGE is related to.
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June 7, 2020 June 7, 2020
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