Not a solved field — an axis, a count or a comparison

• A calculation with no memory in it — four measured morphologies · the-history-a-picture-leaves-out
• A calculation with no memory in it — four measured morphologies · the-history-a-picture-leaves-out
• A calculation with no memory in it — nine stroke lengths · the-history-a-picture-leaves-out
• A calculation with no memory in it — the morphologies are measurements · the-history-a-picture-leaves-out
• A dissipation that lags its production — stated for every Reynolds number above transition — the width is what changes · cascade-spectrum
• A millionth is enough — stated for every Reynolds number above transition — the width is what changes · cascade-spectrum
• A particle is a low-pass filter — the shared shape; individual systems differ in their limits · which-memory-a-number-decides
• Counting what matters — no single tunnel speed sits on both conditions · regime-axis
• Every memory number is one time over another — one value each; the point is the construction rather than the number · which-memory-a-number-decides · hero
• Every memory number is one time over another — one value each; the point is the construction rather than the number · which-memory-a-number-decides
• Every memory number is one time over another — a survey rather than a computation · which-memory-a-number-decides
• Every memory number is one time over another — the shared shape; individual systems differ in their limits · which-memory-a-number-decides
• Every memory number is one time over another — the shared shape · which-memory-a-number-decides
• Every memory number is one time over another — a statement about the ratio rather than about any fluid · which-memory-a-number-decides
• Every memory number is one time over another — one representative value each · which-memory-a-number-decides
• Five numbers, one name — a stated profile, not a solution — the numbers are definitions applied to it · stratified · hero
• Five numbers, one name — a stated profile, not a solution — the numbers are definitions applied to it · stratified
• Five numbers, one name — a stated profile, not a solution; the quarter drawn is Miles' sufficient bound · stratified
• Five numbers, one name — Reynolds number from 10⁻¹ to 10⁹ · regime-axis
• One number decides which physics applies — Reynolds number from 10⁻¹ to 10⁹ · regime-axis · hero
• One number decides which physics applies — Reynolds number from 10⁻¹ to 10⁹ · regime-axis
• One number decides which physics applies — two regimes · regime-axis
• One number decides which physics applies — Strouhal number from 0 to 0.5 · regime-axis
• Slip is a memory of one mean free path — one value each; the point is the construction rather than the number · which-memory-a-number-decides
• The angle that does not care — two regimes · regime-axis
• The balance that is its own error — every group at its own hypothesis; onsets at 1% · regime-crossover
• The cascade that runs backwards — the inertial ranges — an argument about exponents, and not a spectrum measured here · inverse-cascade
• The film that heats itself — every group at its own hypothesis; the onsets are quoted at 1% · regime-crossover
• The grid nobody can build — stated at every Reynolds number — the exponent is what the estimate is · resolution-cost · hero
• The grid nobody can build — stated at every Reynolds number — the exponent is what the estimate is · resolution-cost
• The grid nobody can build — stated at every Reynolds number — the exponents are what the estimate is · resolution-cost
• The grid nobody can build — stated for every Reynolds number above transition — the width is what changes · cascade-spectrum
• The ladder that never closes — any flow — the count does not depend on one · closure-count · hero
• The ladder that never closes — any flow — the count does not depend on one · closure-count
• The ladder that never closes — any flow — the count does not depend on one · closure-count
• The ladder that never closes — any flow — the count does not depend on one · closure-count
• The ladder that never closes — any flow — the count does not depend on one · closure-count
• The model that cannot be matched — Reynolds number from 10⁻¹ to 10⁹ · regime-axis · hero
• The model that cannot be matched — no single tunnel speed sits on both conditions · regime-axis
• The model that cannot be matched — two regimes · regime-axis
• The model that cannot be matched — Reynolds number from 10⁻¹ to 10⁹ · regime-axis
• The number that really is one — every group at its own hypothesis; onsets at 1% · regime-crossover
• The one exact result — any flow — the count does not depend on one · closure-count
• The price of a gradient — Reynolds number from 10⁻¹ to 10⁹ · regime-axis
• The Reynolds number, and the length in it — Reynolds number from 10⁻¹ to 10⁹ · regime-axis · hero
• The Reynolds number, and the length in it — Reynolds number from 10⁻¹ to 10⁹ · regime-axis
• The Reynolds number, and the length in it — two regimes · regime-axis
• The Reynolds number, and the length in it — Strouhal number from 0 to 0.5 · regime-axis
• The teapot effect is a tension, not a pressure — water at 20 °C — the geometry is illustrative, the tensions computed · wall-jet
• The threshold the walls decide — every group at its own hypothesis; onsets at 1% · regime-crossover
• The threshold the walls decide — every group at its own hypothesis; the tolerance is the abscissa · regime-crossover
• The tracer that is not one — each group at its own hypothesis; onsets at 1% · regime-crossover
• The wing the equation is really solving — two regimes · regime-axis
• The world with no inertia — two regimes · regime-axis
• Two forces, and only one of them remembers — one value each; the point is the construction rather than the number · which-memory-a-number-decides
• What "of order one" is worth — every group at its own hypothesis; the onsets are quoted at 1% · regime-crossover · hero
• What "of order one" is worth — every group at its own hypothesis; the onsets are quoted at 1% · regime-crossover
• What "of order one" is worth — each group at its own hypothesis; onsets at 1% · regime-crossover
• What "of order one" is worth — every group at its own hypothesis; onsets at 1% · regime-crossover
• What "of order one" is worth — every group at its own hypothesis; onsets at 1% · regime-crossover
• What "of order one" is worth — every group at its own hypothesis; onsets at 1% · regime-crossover
• What "of order one" is worth — every group at its own hypothesis; onsets at 1% · regime-crossover
• What "of order one" is worth — every group at its own hypothesis; onsets at 1% · regime-crossover
• What "of order one" is worth — every group at its own hypothesis; the tolerance is the abscissa · regime-crossover
• What averaging costs — any flow — the count does not depend on one · closure-count
• What averaging costs — any flow — the count does not depend on one · closure-count
• What averaging costs — any flow — the count does not depend on one · closure-count
• When air stops being incompressible — Reynolds number from 10⁻¹ to 10⁹ · regime-axis
• When air stops being incompressible — two regimes · regime-axis
• When air stops being incompressible — Strouhal number from 0 to 0.5 · regime-axis
• Where the energy goes — stated for every Reynolds number above transition — the width is what changes · cascade-spectrum
• Where the energy goes — stated at every Reynolds number — the exponent is what the estimate is · resolution-cost
• Where the energy goes — stated for every Reynolds number above transition — the width is what changes · cascade-spectrum

Every regime · All figures · All essays