From 6c88bace920afd937a9cc3f0e38ae20b3122a50d Mon Sep 17 00:00:00 2001
From: William Fullmer <william.fullmer@netl.doe.gov>
Date: Tue, 3 Dec 2019 21:24:12 -0500
Subject: [PATCH] add comments about load balancing granular sims and typo in
qb biseg
---
docs/source/InputsLoadBalancing.rst | 5 +++++
docs/source/qb/biseg.rst | 4 ++--
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/docs/source/InputsLoadBalancing.rst b/docs/source/InputsLoadBalancing.rst
index 0a2abd1..e78dcb7 100644
--- a/docs/source/InputsLoadBalancing.rst
+++ b/docs/source/InputsLoadBalancing.rst
@@ -51,6 +51,11 @@ The following inputs must be preceded by "particles"
| | in the ParticleBoxArray if dual_grid is true. | | |
+-------------------+-----------------------------------------------------------------------+-------------+--------------+
+Note that when running a granular simulation, i.e., no fluid phase, :cpp:`mfix.dual_grid` must be 0. Hence,
+the :cpp:`particles.max_grid_size` (in each direction) have no meaning. Therefore the fluid grid and tile
+sizes should be set for particle load balancing. It may also be necessary to set the blocking factors to 1.
+
+
The following inputs must be preceded by "mfix" and determine how we load balance:
+----------------------+-----------------------------------------------------------------------+-------------+--------------+
diff --git a/docs/source/qb/biseg.rst b/docs/source/qb/biseg.rst
index 9873497..cc619f0 100644
--- a/docs/source/qb/biseg.rst
+++ b/docs/source/qb/biseg.rst
@@ -9,8 +9,8 @@ of nylon
and ceramic
(:math:`d_p = 4.25` mm, :math:`\rho_p = 2580` kg/m\ :sup:`3` \)
particles. When fluidized, the smaller, lighter nylon particles
-(:math:`U_{mf} ~ 1.1` m/s) segregate out of the mixture to the top,
-with the larger, heavier ceramic particles (:math:`U_{mf} ~ 1.8` m/s)
+(:math:`U_{mf} \approx 1.1` m/s) segregate out of the mixture to the top,
+with the larger, heavier ceramic particles (:math:`U_{mf} \approx 1.8` m/s)
remaining at the bottom. The batch segregation test was conducted in
a small bed with a square cross-section of side length 60.325 mm.
Similar to previous observations of fluidized segregation of
--
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