doc fixes

Merge pull request #1371 from CEED/kjansen/DropPotentialFromEtot

Drop Potential Energy from Etot conservation variable

typo

connecting body force vector to gravity vector. Note both still have density multiplier in momentum equation and are dotted with momentum in energy equation.

minus S

v2 docs

first cut at docs

minus S

v2 docs

first cut at docs

Merge pull request #1298 from CEED/jrwrigh/taylor-green-vortex

Fluids: Add Taylor-Green vortex problem

doc: Fluids Taylor-Green vortex problem

Merge pull request #1278 from CEED/jrwrigh/blasius-simplex

fluids: Fix STG and Blasius for non-box meshes

fluids: Use enum for mesh transformation flag

fluids: Explicit flag for blasius mesh modification

- So that blasius example can run using external meshes without any
attempt to modify them

Merge pull request #1226 from CEED/jed/fix-doc-math

doc: fix math in headers

doc: fix math in headers

There is a bad hyperref/unicode-math interaction apparently resulting
from how PDF bookmarks work. This replaces math in headers (section
titles) with unicode Greek letters

doc: fix math in headers

There is a bad hyperref/unicode-math interaction apparently resulting
from how PDF bookmarks work. This replaces math in headers (section
titles) with unicode Greek letters to fix doc-latexpdf.

https://tex.stackexchange.com/questions/570000/improper-alphabetic-constant-error-in-title-with-greek-bug-with-unicode-math-an

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Merge pull request #1189 from CEED/jrwrigh/differential_filter

fluids: Add differential filtering capability

doc(fluids): Add differential filtering

Merge pull request #1149 from CEED/jrwrigh/newtonian_ddsgs

fluids: Data-driven SGS modeling

test(fluids): Add data-drive SGS testing

doc(fluids): Rearrange Navier-Stokes documentation

doc(fluids): Document SGS, data-driven model

Ken/idl (#1138)

* inflow sponge pushing p towards P0 compiles and runs but unknown yet whether it is effective or not

* looks like my first attempt at this is missing something as there is neglig

Ken/idl (#1138)

* inflow sponge pushing p towards P0 compiles and runs but unknown yet whether it is effective or not

* looks like my first attempt at this is missing something as there is negligible effect from Jacobian addition

* examples/fluids: IDL fixes and demo

* Fix IDL sign error and rename variables/clang-format
* Let newtonianwave.yaml use -reference_pressure and temperature
* Propagate P0 = reference.pressure

* Small tweak to add IDL to the 3 ramp parameters.

* fluids: Extract fluids binary vector load function

- Needs to be used in multiple places (for ICs and for testing data)

* fluids: Correct typo in previous commits

* fluids: Add IDL and newtonian wave test

* fluids: Rename Newtonian Wave --> Gaussian Wave

* fluids: Move RampCoefficient into utils

- Also change name to LinearRampCoefficient, as we may have different
kinds of ramps in the future

* fluids: Change IDL commandline options

* docs(fluids): Document internal damping layer

Co-authored-by: Jed Brown <jed@jedbrown.org>

* fluids: Add ScaleN QF utility

* fluids: Extract InternalDampingLayer QFunction helper

---------

Co-authored-by: Jed Brown <jed@jedbrown.org>
Co-authored-by: KennethEJansen <jansenke@colorado.edu>
Co-authored-by: James Wright <james@jameswright.xyz>

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Lift, Drag, Heat Transfer (#1130)

* add functions for surface forces

* function for surface forces

* reaction forces

* add points to label

* WIP: examples/fluids: sketch surface force ca

Lift, Drag, Heat Transfer (#1130)

* add functions for surface forces

* function for surface forces

* reaction forces

* add points to label

* WIP: examples/fluids: sketch surface force calculations

* examples/fluids: fix for parallel, when there are no such points on a process

* add TSMonitor_FaceForce function

* update on TSMonitor FaceForce

* create .csv file

* cleanup TS Monitor FaceForce function

* include surface forces viewer to header file

* include ts monitor surface force viewer to cloptions

* update where TSMonitor FaceForce are called

* examples/fluids: update wall forces to write csv

mpiexec -n 5 build/fluids-navierstokes -options_file examples/fluids/vortexshedding.yaml -{ts,snes}_monitor -degree 1 -ts_monitor_wall_forces ascii:force.csv:ascii_csv

* update documentation

* reaction force data

* plotting script

* examples/fluids: seaborn plotting with twinx and colors

* delete data file

* tuck away csv file

* place python script in subdirectory

* examples/fluids/postprocess: put shedding period in title

* examples/fluids: document wall force and shedding postprocess

---------

Co-authored-by: Jed Brown <jed@jedbrown.org>

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