Posts are listed in reverse chronological order. Obsolete items are not linked but are still available.
Key to Table of Contents:
Background Material,
Current
Movie or Presentation
Science Post
Obsolete
Diagnosing and Modeling SSW pitches
How to Tell if You Threw a SSW Pitch, Sinker/Changeup Edition
Case Study: Good and Bad Discoballs
Relationship between Orientation and gyro for Seam-Shifted-Wake pitches
How to Use the Looper and Scuffball
A Zero-Gyro Seam Shifted Wake Pitch. The Looper
Rapsodo 1.0 and Seam Shifted Wake Pitches
The State of Baseball Aerodynamics
Magnus Models and Constant Acceleration Assumptions
How to Legally Scuff a Baseball
Disco Ball Changeup Experiment
Magnus Effect, Seams and Roughness
My APS DFD presentation on the Fluid Dynamics of Seam Shifted Wakes
The Non-Centered Pill Baseball Drag Theory
Effect of Seam Height on Wake of MLB Baseballs
3D Explanation of Laminar Express
Seam Height ball-to-ball/year-to-year Variation
Kelvin-Helmholtz Instabilities and Baseballs, Jets, the Atmosphere, and Jupiter
Prediction of Flow Pattern of Laminar Express Over a Full Rotation
My Latest Thoughts on Laminar Express: Post 29
Primer on Understanding Our Results
Saberseminar 2019 Presentation: What do Baseball Seams do to a Ball in Flight?Âť
Ball Smoothness, Roundness and Drag
Baseball Rubbing Mud and its Effect on Roughness
Baseball Roughness Effect on Laminar Separation:
Laminar and Turbulent Boundary Layer Separation on New MLB balls
First PIV Measurements on MLB Balls
Addendum: Cricket Balls and CFD on Baseballs Post
Why I don’t want to talk about cricket balls, wind tunnel studies or CFD
The theory of Seam-Controlled Wakes
A different idea on the “Laminar Express”Âť
A Complete Description of the Laminar Express
What we still don’t know about Laminar Express
Driveline Laminar Express Study
Questions I Want to Answer Post
More about Pressure Gradients Post
How a “Laminar Express”Âť Might Work Post
Location of a Seam Relative to Pressure Gradient
What Does Boundary Layer Mean?
Effect of Seams on the Boundary Layer
Attempt using a machine
Why am I interested in Baseball Drag?
Previous study of 2 vs 4 seam pitches
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