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| author | Aaron LI <aly@aaronly.me> | 2017-10-25 21:02:32 +0800 |
|---|---|---|
| committer | Aaron LI <aly@aaronly.me> | 2017-10-25 21:06:17 +0800 |
| commit | 7999e74388e1760f95420e1886efe32cf3ec6516 (patch) | |
| tree | e14d595e1d772b2f276f25b8f761106848a500fa /fg21sim | |
| parent | e4abd18875c642ff84ba11cce44a11f55cba5003 (diff) | |
| download | fg21sim-7999e74388e1760f95420e1886efe32cf3ec6516.tar.bz2 | |
clusters/solver: Update buffer_np description and handling
Diffstat (limited to 'fg21sim')
| -rw-r--r-- | fg21sim/extragalactic/clusters/halo.py | 2 | ||||
| -rw-r--r-- | fg21sim/extragalactic/clusters/solver.py | 13 |
2 files changed, 11 insertions, 4 deletions
diff --git a/fg21sim/extragalactic/clusters/halo.py b/fg21sim/extragalactic/clusters/halo.py index 281093d..6b91f7f 100644 --- a/fg21sim/extragalactic/clusters/halo.py +++ b/fg21sim/extragalactic/clusters/halo.py @@ -149,6 +149,8 @@ class RadioHalo: self.gamma_max = self.configs.getn(comp+"/gamma_max") self.gamma_np = self.configs.getn(comp+"/gamma_np") self.buffer_np = self.configs.getn(comp+"/buffer_np") + if self.buffer_np == 0: + self.buffer_np = None self.time_step = self.configs.getn(comp+"/time_step") self.time_init = self.configs.getn(comp+"/time_init") self.injection_index = self.configs.getn(comp+"/injection_index") diff --git a/fg21sim/extragalactic/clusters/solver.py b/fg21sim/extragalactic/clusters/solver.py index 52e07c7..ad5c320 100644 --- a/fg21sim/extragalactic/clusters/solver.py +++ b/fg21sim/extragalactic/clusters/solver.py @@ -109,10 +109,12 @@ class FokkerPlanckSolver: f_escape : function, optional Function f(x,t) to calculate the escape coefficient T(x,t) buffer_np : int, optional - Number of grid points taking as the buffer region near the lower - boundary. The densities within this buffer region will be replaced - by extrapolating an power law to avoid unphysical accumulations. - This fix is ignored if this parameter is not specified. + Number of grid cells taken as the buffer regions near both the + lower and upper boundaries. The values within the buffer regions + will be replaced by extrapolating with a power law to avoid + unphysical pile-ups. + The fix will be ignored if this parameter is ``None`` or is less + than 2. (This parameter is suggested to be about 5%-10% of ``x_np``.) NOTE @@ -142,6 +144,9 @@ class FokkerPlanckSolver: self.f_injection = f_injection self.f_escape = f_escape self.buffer_np = buffer_np + if (buffer_np is not None) and (buffer_np < 2): + logger.warning("buffer_np set but < 2; disable boundary fixes!") + self.buffer_np = None @property def x(self): |