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docs:utils:continuefields [2010/03/04 07:28]
gibson
docs:utils:continuefields [2010/03/04 17:34]
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  
 ====== 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 =====
  
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    ​-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.txt · Last modified: 2010/03/04 17:35 by gibson