SPECIFY THE DASPK CONTROLS

Title of keyword block that specifies the controlling parameters for the DASPK solver. The LPCVD Thermal Analyzer uses this solver to obtain transient solutions. Requires END statement to close keyword block.

ABSOLUTE ERROR =

Sets absolute error tolerance for DASPK. Typically the absolute error should be smaller than the maximum mass fraction of any species of interest. Part of the SPECIFY THE DASPK CONTROLS keyword block.

Example: ABSOLUTE ERROR = 1.0E-6

Default: 1.0E-8

DASPK: ATOL

RELATIVE ERROR =

Sets relative error tolerance for DASPK. Typically the relative error should be in the range of 10^-3 to 10^-6, which would provide roughly three to six significant digits. Part of the SPECIFY THE DASPK CONTROLS keyword block.

Example: RELATIVE ERROR = 1.0E-5

Default: 1.0E-6

DASPK: RTOL

INTEGRATION STOP TIME =

Sets length of integration time for DASPK. Part of the SPECIFY THE DASPK CONTROLS keyword block.

Example: INTEGRATION STOP TIME = 600.0

Unit: sec

Default: 1800.0

DASPK: TSTOP

TIME INTERVAL FOR OUTPUT =

Sets length of time interval between successive solution outputs from DASPK. Part of the SPECIFY THE DASPK CONTROLS keyword block.

Example: TIME INTERVAL FOR OUTPUT = 15.0

Unit: sec

Default: 60.0

DASPK: DTIME

MAXIMUM ORDER OF TIME INTEGRATION =

Sets maximum order of integration used by DASPK. Should be an integer less than five. Part of the SPECIFY THE DASPK CONTROLS keyword block.

Example: MAXIMUM ORDER OF TIME INTEGRATION = 3

Default: 5

DASPK: MAXORD