Add Taylor–Green NS benchmark studying order reduction induced by time-dependent bcs

pySDC/projects/StroemungsRaum_FEniCSx/README.rst

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+StroemungsRaum_FEniCSx
+======================
+
+**StroemungsRaum_FEniCSx** is a research software project derived from the
+original *StroemungsRaum* framework and developed within the context of the
+BMBF-funded project
+
+*“StrömungsRaum – Novel Exascale Architectures with Heterogeneous Hardware
+Components for Computational Fluid Dynamics Simulations”*
+(October 2022 – September 2025).
+
+This repository provides a modernized implementation of the original
+StroemungsRaum research codes using **FEniCSx** instead of the legacy FEniCS
+framework. The migration enables compatibility with current finite element
+software ecosystems and improved support for modern HPC architectures.
+
+Scope of This Repository
+------------------------
+This repository contains the **Forschungszentrum Jülich (FZJ)** contribution to
+the StrömungsRaum project implemented with FEniCSx, focusing on:
+
+- Parallel-in-time methods
+- Combined space–time parallelization
+- Scalable solvers for time-dependent PDEs
+- High-performance finite element implementations with PETSc and MPI
+- Research on exascale-ready CFD algorithms
+
+The primary objective is to expose concurrency beyond spatial parallelism and
+enable efficient large-scale simulations on modern heterogeneous HPC systems.
+
+Software Stack
+--------------
+This project is based on the modern FEniCSx ecosystem, including:
+
+- FEniCSx
+- PETSc
+- mpi4py
+- petsc4py
+- UFL
+- Basix
+- DOLFINx
+
+Research Focus
+--------------
+The software serves as a research platform for investigating:
+
+- Scalable time integration methods
+- Space–time parallelism
+- High-order temporal discretizations
+- Solver robustness for incompressible flows
+- Parallel performance on heterogeneous architectures
+
+Funding
+-------
+Funded by the **German Federal Ministry of Education and Research (BMBF)** under
+grant number **16ME0708**.
+

pySDC/projects/StroemungsRaum_FEniCSx/environment.yml

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+---
+
+name: pySDC
+channels:
+  - conda-forge
+dependencies:
+
+  - fenics-dolfinx=0.10.0
+  - ufl=2025.2.1
+  - basix=0.10.0
+  - mpi4py
+  - petsc4py
+  - slepc4py
+  - pyvista
+  - numpy
+  - scipy>=0.17.1
+  - dill>=0.2.6
+  - matplotlib>=3.0
+  - pytest
+  - pytest-cov
+  - pip
+  - pip:
+    - qmat>=0.1.8