docs:utils:continuefields
Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision | ||
|
docs:utils:continuefields [2010/03/04 07:28] gibson |
docs:utils:continuefields [2010/03/04 17:35] (current) gibson |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| ====== continuefields ====== | ====== continuefields ====== | ||
| - | Quadratic extrapolation of FlowField u(mu) as function of parameter mu | + | Quadratic extrapolation of FlowField u(mu) as function of parameter mu, where mu is one of Reynolds number, //dP/dx, Lx, Lz, Lx/Lz, sqrt(Lx^2 + Lz^2),// or the length between the starting //(Lx,Lz)// and a target value of //(Lx,Lz)//. |
| ====== options ====== | ====== options ====== | ||
| Line 57: | Line 58: | ||
| The trailing three arguments are directories containing results from a previous run of ''continuesoln''. The direction of continuation is determined by the order of the three previous solutions. | The trailing three arguments are directories containing results from a previous run of ''continuesoln''. The direction of continuation is determined by the order of the three previous solutions. | ||
| - | |||
| ===== continuation parameter ===== | ===== continuation parameter ===== | ||
| Line 73: | Line 73: | ||
| -Lxtarg --LxTarget <real> default == 6.28319 aim for this value of Lx | -Lxtarg --LxTarget <real> default == 6.28319 aim for this value of Lx | ||
| - | -Lztarg --LzTarget <real> default == 3.14159 aim for this value of Lz -continue solution towards a target Lx,Lz | + | -Lztarg --LzTarget <real> default == 3.14159 aim for this value of Lz |
| - | + | ||
| - | -up --upwards | + | Two other options related to the continuation type are |
| - | -adt --adjustDt adjust dt between continuation steps to keep CFL in bounds | + | |
| + | -up --upwards continue upwards in parameter (default is downwards) | ||
| + | -adt --adjustDt adjust dt between continuation steps to keep CFL in bounds | ||
| | | ||
| + | The ''-up'' option is self-explanatory. The ''-adt'' option is most important when the continuation changes //Lx//, since this will change the //x// gridspacing and consequently the CFL number. It should be safe to use ''-adt'' in other cases, too. | ||
docs/utils/continuefields.1267716480.txt.gz · Last modified: 2010/03/04 07:28 by gibson
Page Tools
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 3.0 Unported
