Flow Induced Crystallization: General description

Purpose

Module for handling data from start up of shear and extensional flow experiments with flow induced crystallisation.

Data Files

  • The first line of the file should contain the sample parameters separated by semi-colons (;). It may contain any number of parameters which will be read and saved as file-parameter in RepTate.

  • Then the data columns should appear, separated by spaces or tabs.

.shearxs extension

Text files with .shearxs extension should be organised as follows:

  • .shearxs files should contaion at least the parameter values for the:

    1. shear rate, \(\dot\gamma\)

    2. shear end time, \(t\)-stop

    3. temperature, \(T\)

  • 5 columns separated by spaces or tabs containing respectively:

    1. time, \(t\),

    2. shear stress growth function, \(\sigma^+(t)\),

    3. nucleation rate, \(\dot N(t)\),

    4. crystal fraction, \(\phi_X(t)\),

    5. nucleation density, \(N(t)\),

Other columns will be ignored. A correct .shearxs file looks like:

gdot=0.1;tstop=50.0;T=0.0;
t               sigma_xy        Ndot        phi_X           N
1.437E+00       1.411E+02       5.103E-09       3.227E-08       1.001E-05
1.751E+00       1.709E+02       1.358E-08       5.772E-08       1.001E-05
2.134E+00       2.065E+02       4.283E-08       1.034E-07       1.002E-05
2.600E+00       2.486E+02       1.623E-07       1.858E-07       1.006E-05
3.168E+00       2.978E+02       7.418E-07       3.349E-07       1.028E-05
...         ...         ...         ...         ...

Views

log(eta(t))

BaseApplicationCrystal.viewLogeta()[source]

Logarithm of the transient shear or extensional viscosity (depending on the experiment) \(\eta(t)\) vs logarithm of time \(t\)

Ndot(t) [log-log]

BaseApplicationCrystal.viewNdot(dt, file_parameters)[source]

Nucleation rate as a function of time on log axis \(\dot{N}(t)\) vs time \(t\) (x-axis on log scale by default)

N(t) [log-log]

BaseApplicationCrystal.viewNt(dt, file_parameters)[source]

Nucleation density as a function of time on log axis \(N(t)\) vs time \(t\) (x-axis on log scale by default)

phiX(t) [log-log]

BaseApplicationCrystal.viewphiX(dt, file_parameters)[source]

Crystal fraction as a function of time on log axis \(\phi_X(t)\) vs time \(t\) (x-axis on log scale by default)

Ndot(t) [log-lin]

Nucleation rate as a function of time on log axis \(\dot{N}(t)\) vs time \(t\)

N(t) [log-lin]

Nucleation density as a function of time on log axis \(N(t)\) vs time \(t\)

phiX(t) [log-lin]

Crystal fraction as a function of time on log axis \(\\phi_X(t)\) vs time \(t\)

eta(t))

BaseApplicationCrystal.vieweta()[source]

Transient shear or extensional viscosity (depending on the experiment) \(\eta(t)\) vs time \(t\) (both axes in logarithmic scale by default)

log(sigma(gamma))

BaseApplicationCrystal.viewLogSigmaGamma()[source]

Logarithm of the transient shear or extensional stress (depending on the experiment) \(\sigma(t)\) vs logarithm of the strain \(\gamma\)

sigma(gamma)

BaseApplicationCrystal.viewSigmaGamma()[source]

Transient shear or extensional stress (depending on the experiment) \(\sigma(t)\) vs strain \(\gamma\)

log(sigma(t))

BaseApplicationCrystal.viewLogSigmaTime()[source]

Logarithm of the transient shear or extensional stress (depending on the experiment) \(\sigma(t)\) vs logarithm of time \(t\)

sigma(t)

BaseApplicationCrystal.viewSigmaTime()[source]

Transient shear or extensional stress (depending on the experiment) \(\sigma(t)\) vs time \(t\)

Flow Curve

BaseApplicationCrystal.view_flowcurve()[source]

\(\sigma(t_{\to\infty})\) vs flow rate

Steady Nucleation

BaseApplicationCrystal.view_steadyNuc(dt, file_parameters)[source]

\(\dot{N}(t_{\to\infty})\) vs flow rate

Todo

Document the views