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The darcy #137

Open timbrisc opened 8 years ago

timbrisc commented 8 years ago

Issue migrated from trac ticket # 188

component: unit definitions | priority: minor

2016-09-02 17:28:06: vlietstra@btinternet.com created the issue

The darcy (symbol D) is a cgs unit of permeability that is widely used in the petroleum industry. Its formal definition is "a unit of permeability, representing the flow, at 1 atmosphere, of 1 cubic centimeter of fluid with 1 centipoise viscosity in 1 second through a 1-square-centimeter cross section of porous medium 1 centimeter long." (http://www.dictionary.com/browse/darcy)

timbrisc commented 7 years ago

2016-12-14 15:47:28: gschadow@pragmaticdata.com changed status from new to assigned

timbrisc commented 7 years ago

2016-12-14 15:47:28: gschadow@pragmaticdata.com set owner to gschadow

timbrisc commented 7 years ago

2016-12-14 15:47:28: gschadow@pragmaticdata.com changed component from help to unit definitions

timbrisc commented 7 years ago

2016-12-14 15:47:28: gschadow@pragmaticdata.com

timbrisc commented 7 years ago

2016-12-14 15:47:28: gschadow@pragmaticdata.com commented

Sounds like a well defined unit we could add.

timbrisc commented 6 years ago

2017-11-22 01:15:38: gschadow@pragmaticdata.com

timbrisc commented 6 years ago

2017-11-22 01:15:38: gschadow@pragmaticdata.com commented

Ticket retargeted after milestone closed

timbrisc commented 3 years ago

2021-01-15 04:30:46: simon.cox@csiro.au commented

Also see https://en.wikipedia.org/wiki/Darcy_(unit) 1 Darcy = 0.9869233 µm² (um2)

It is included in the OM system https://github.com/HajoRijgersberg/OM/blob/master/om-2.0.rdf

timbrisc commented 3 years ago

2021-02-16 12:56:15: gschadow@pragmaticdata.com commented

I think my motion was to accept, sadly we seemed to have lost the ticket status workflow. What's needed now is the proposal be completed with the exact details we would add into the specification.

  • case sensitive symbol
  • case insensitive symbol
  • definition formula (what would show in the table)
  • any insertion into the body text surrounding the table
  • any footnote with additional detail We should probably elicit this detail directly in new proposals so that the proposal submitter would suggest this detail, that might make acceptance and implementation even easier and faster.