“Turbulence is the most important unsolved problem of classical physics.”
Field notes from a compressible multiphase CFD researcher
Top posts this week
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[Paper Review] Drawing Shocks with tanh — Implementing TENO-THINC Reconstructionnew
How THINC keeps a sub-cell jump alive when polynomials smear the contact
Solving an Impeller by Holding It Still — Rotating Frames and MRFnew
Coriolis and centrifugal source terms plus the MRF interface transform, checked in code
Heating It Hotter Made It Cooler — The Boiling Curve and Critical Heat Fluxnew
The boiling-curve paradox: heat past the boiling point and heat transfer collapses
Entropy Stops the Blow-Up — Karlin's Entropic Lattice Boltzmannnew
Stabilizing LBM with an H-theorem-enforcing entropic collision
Why a Rougher Ball Flies Farther — The Drag Crisis and Boundary-Layer Separationnew
The cliff-like drop in $C_D$ called the drag crisis, and the separation behind it
When a Bullet Passes Straight Through a Wall — Continuous Collision Detection by Inclusion Bisectionnew
Stopping tunneling with CCD: coplanarity roots and conservative bisection
[Paper Review] How a DQN Tamed Airfoil Vortices with a Synthetic Jet — Reinforcement-Learning Flow Controlnew
DQN and Dueling DQN drive a synthetic jet to raise lift and cut drag
[Paper Review] GMRES Ran 1000 Times and Still Wouldn't Stop — Physics-Based Block Preconditioning for an All-Speed Melt Poolnew
A velocity–pressure Schur complement preconditioner keeps the iteration count flat as the Mach number goes to zero
Filling an Interface with a Fluid That Isn't There — The Ghost Fluid Method
GFM for sharp interfaces in compressible multi-material flow
Fluid That Warms Up While Standing Still — Natural Convection and Rayleigh 1708
The threshold where buoyancy beats viscosity, and the Nusselt correlations
The Euler Eigensystem in an Arbitrary Direction — Three Waves, Two Repeats, One Singularity
Where the left eigenvector breaks when n̂ tilts, and the three conventions that dodge it
Turbulence Runs Three Rulers at Once — The Kolmogorov Cascade and the -5/3 Law
How big eddies break down to viscous prey, and the spectrum drawn over that road