IMPES

Recognised by the OPM Flow parserRUNSPEC

The IMPES keyword activates the Implicit Pressure Explicit Saturation formulation and solution options, commonly know as IMPES. OPM Flow uses a different numerical scheme which makes this keyword redundant; hence, OPM Flow ignores this keyword. It is documented here for completeness.

There is no data required for this keyword and there is no terminating “/” for this keyword.

See section 2.2Running OPM Flow 2023-04 From The Command Lineon how to invoke various numerical schemes via the OPM Flow command line interface.

Records

No records — the keyword stands alone

Example

--
-- ACTIVATE THE IMPES SOLUTION OPTION
--
IMPES
The above example switches on the IMPES solution option; however, this has no effect in OPM Flow input decks.

Manual source: parts/chapters/subsections/5.3/IMPES.fodt