Wiki
Published subset of an org-roam notes tree — the technical/reference notes only. Personal, financial, and journal-style notes stay local.
Hardware notes
Note graph — org-roam interconnections
A real org-roam graph: notes and links are computed by an actual Emacs + org-roam instance (see docker/orgroam/, run via make graph), not approximated by regex. Nodes are published wiki pages, colored by category and sized by how many notes reference them. Lines are real id: links found by org-roam — most pages are still leaves, which is honest: this corpus isn't densely interlinked yet. Drag a node to feel the physics, hover to isolate its links, click to open it, scroll to zoom.
Physics controls — drag to retune live
Mechanical Engineering
- Ahmed Body
- Aluminum Extrusions
- Bearings
- Calculator
- Control Systems
- Drillstring Mechanics
- Dynamics and Vibrations
- Energy Dispersive Spectroscopy
- Failure Criteria
- Fasteners
- Fatigue and Fracture
- Finite Element Analysis
- Flexures
- Gas Dynamics
- Gears
- Geometric Dimensioning and Tolerancing
- Gridfinity
- Journal Bearings
- Lifting Mechanisms
- Locomotion
- Lubrication
- Material Selection
- Metallography
- Metallurgy
- Microfluidics
- Nanopositioning
- O-ring Design
- Optical Microscopy
- Polymers
- Polyvinylidene Fluoride
- Power Transmission
- Precision Rulers
- Pressure Vessels
- Propellers
- Pumps
- Residual Stress
- Screws and Threads
- Stainless Steel
- Statics and Structural Mechanics
- Thermo-Calc
- Thermocouples
- Tribology
- Units and Conversions
- Vacuum Technology
- Vaseline Syringes
- X-Ray Diffraction
Electronics
- Battery Management System Control
- Bus systems
- Cable Management
- Chips
- Controls
- Corrosion Monitoring as Feedback
- Digital & Discrete-Time Control
- Diodes
- Drone Control
- Frequency Response: Bode & Nyquist
- Jellybeans
- Motors & Actuators
- Multimeter
- Nonlinear & Adaptive Control
- Optimal Control: LQR, Riccati, and the Kalman Filter
- PCB holder
- Peltier chiller
- PID
- PID Control: Theory, Tuning & Implementation
- PLC Programming
- Robust Control: Sensitivity, Kharitonov & H-infinity
- Root Locus: Evans Construction
- Sensors
- Soldering Iron
- Stability: Routh-Hurwitz & Pole Locations
- Stack Control: Electrolyzer & Fuel-Cell Load Following
- State-Space Representation
- Stripboard Projects
- The Plant: Actuators, Encoders & IMUs
- Transfer Functions & Block Diagrams
- Understanding Fuses: A Maker's Guide to Electrical Protection
- Vendors
- Work bench
Software & Tools
- Arduino
- Constraint Programming
- Control design toolkit in Labview
- Create barplot in matplotlib
- cs_data_science.org
- Docker
- Emacs literate configuration
- Git
- Go
- Logo (programming language)
- Matlab
- ParaView
- Particle Tracking
- Pre-trained models
- Scanning electron microscope
- Self-hosted Applications
- Vectorization
CFD
- Boundary conditions -- types, well-posedness, practical setup
- Cell Types in CFD -- hexahedra, tetrahedra, polyhedra, prisms
- CFD Training Roadmap -- Learning Sequence and Progression Guide
- Compressible Flow
- Compression Schemes -- Riemann solvers, upwinding, shock capturing
- Conservation Laws and the Reynolds Transport Theorem
- Discrete Phase Modeling
- Finite Volume Method -- general transport equation, Gauss theorem, discretisation schemes
- Governing Equations of Fluid Mechanics
- Incompressible Flow
- Mesh Quality in CFD -- metrics, thresholds, and the checkMesh workflow
- Numerical Anisotropy in Unstructured Meshes
- Numerical Dispersion and Diffusion -- truncation error, artificial viscosity
- Numerical Dissipation
- Numerical Schemes for CFD
- Pressure-velocity Coupling -- SIMPLE, PISO, PIMPLE, under-relaxation
- Stability Analysis for CFD
- Turbulence Models -- RANS, LES, DES, y+ discipline
- TVD Limiters -- Sweby diagram, bounded high-order convection
OpenFOAM
- cfMesh Workflow — Cartesian Background Meshing
- OpenFOAM Boundary Conditions
- OpenFOAM Case Setup — Dictionaries, BCs, and Turbulence Configuration
- OpenFOAM Combustion Modeling — Premixed, Non-Premixed, and Spray
- OpenFOAM Compressible Fluid Module
- OpenFOAM Dynamic Mesh
- OpenFOAM Incompressible Fluid Module (v14)
- OpenFOAM Mesh Generation — blockMesh and snappyHexMesh
- OpenFOAM Multiphase Flows — VOF, Eulerian-Eulerian, and DPM
- OpenFOAM Numerical Schemes — fvSchemes Deep Dive
- OpenFOAM Numerics and Discretization
- OpenFOAM Overview
- OpenFOAM Parallel Computing — Domain Decomposition and Scaling
- OpenFOAM Post-Processing — Function Objects and Field Analysis
- OpenFOAM Shock-Capturing and Density-Based Solvers
- OpenFOAM Solver Index
- OpenFOAM Solver Selection Guide
- OpenFOAM Specialized Solvers - Non-Standard and Niche CFD Applications
- OpenFOAM Two-Phase VOF Methods
- Solid Mechanics in OpenFOAM - Structural Analysis and Coupled Solvers
Ansys
- ANSYS Fluent Combustion Modeling
- ANSYS Fluent Meshing & Post-Processing
- ANSYS Fluent Multiphase Modeling
- ANSYS Fluent Overview
- ANSYS Fluent Turbulence Modeling
- ANSYS vs OpenFOAM Comparison
Chemistry
- Acid-Base Chemistry
- Chemical Thermodynamics
- Conical Joints
- Corrosion
- Cyclic Voltammetry
- Drying Solvents
- Electrochemical Impedance Spectroscopy (EIS)
- Electrochemical Thermodynamics
- Electrochemistry
- General Chemistry Foundations
- Laminar Flow Hood
- Linear Polarization Resistance
- Material Safety Data Sheets
- Open circuit potential
- Potentiostat
- Reaction Kinetics
- Reference Electrodes
- Research Contacts
- Standard Operating Procedure