Set by the cavitation number — the pressure margin above vapour

• A breaking strength that is the size of a flaw — water at one atmosphere, 0 to 40 °C — the fit that caps a sealed tube's stretch before a cavity forms · absolute-pressure
• A threshold that is also a duration — three bubbles spanning a factor of ten in radius — cavitation inception · how-long-a-machine-remembers
• Drag in the theory that forbids it — cavitation number 0.00 · cavity-flow · hero
• Drag in the theory that forbids it — cavitation number 0.00 · cavity-flow
• Drag in the theory that forbids it — C_D(σ) = C_D(0)(1 + σ), exact for a slender cavity · cavity-flow
• Drag in the theory that forbids it — cavitation number 0 — the wake is at free-stream pressure · cavity-flow
• Drag in the theory that forbids it — C_D(σ) = C_D(0)(1 + σ), exact for a slender cavity · cavity-flow
• The one place the atmosphere pushes — at rest — nothing is flowing, which is what makes the atmosphere the mechanism · siphon-profile · hero
• The one place the atmosphere pushes — at rest — nothing is flowing, which is what makes the atmosphere the mechanism · siphon-profile
• The one place the atmosphere pushes — at rest — nothing is flowing, which is what makes the atmosphere the mechanism · siphon-profile
• The one place the atmosphere pushes — any Reynolds number — the vapour pressure is the only limit modelled · siphon-profile
• The siphon that does not need the air — any Reynolds number — the vapour pressure is the only limit modelled · siphon-profile · hero
• The siphon that does not need the air — any Reynolds number — the vapour pressure is the only limit modelled · siphon-profile
• The siphon that does not need the air — any Reynolds number — the crown is far above the vapour pressure here · siphon-profile
• The siphon that does not need the air — any Reynolds number — the crown is far above the vapour pressure here · siphon-profile
• The vorticity nothing decides — C_D(σ) = C_D(0)(1 + σ), exact for a slender cavity · cavity-flow
• Where the unknown boundary is the known one — cavitation number 0.00 · cavity-flow
• Where the unknown boundary is the known one — cavitation number 0 — the wake is at free-stream pressure · cavity-flow
• Where the unknown boundary is the known one — C_D(σ) = C_D(0)(1 + σ), exact for a slender cavity · cavity-flow
• Twice the margin, on top of the hammer — any Reynolds number for the exact line; f = 0.02 quasi-steady for the grid · surge
• Twice the margin, on top of the hammer — any Reynolds number — friction absent; V₀ = 0.36 m/s, H₀ = 25 m · surge · hero
• Twice the margin, on top of the hammer — any Reynolds number — friction absent; V₀ = 0.36 m/s, H₀ = 25 m · surge
• The tracer that is not one — cavitation number σ_i from 0.57 to 5.97 — inception at σ = −C_p,min · cavitation-map
• When a body tears the water — cavitation number σ_i from 0.57 to 5.97 — inception at σ = −C_p,min · cavitation-map
• When a body tears the water — cavitation number σ_i from 0.57 to 5.97 — inception at σ = −C_p,min · cavitation-map
• A threshold that is also a duration — cavitation number σ = 0.6, inception at σ_i = 1.428 · cavitation-map
• When a body tears the water — cavitation number σ = 0.6, inception at σ_i = 0.619 · cavitation-map
• When a body tears the water — cavitation number σ_i from 0.62 to 5.86 — inception at σ = −C_p,min · cavitation-map
• The bubble that hammers — cavitation number σ = 0.8, inception at σ_i = 2.161 · cavitation-map
• A threshold that is also a duration — cavitation well past inception — driven by 1.0 bar · bubble-collapse
• The bubble that hammers — cavitation well past inception — driven by 1.0 bar · bubble-collapse · hero
• The bubble that hammers — cavitation well past inception — driven by 1.0 bar · bubble-collapse
• The bubble that hammers — cavitation well past inception — driven by 1.0 bar · bubble-collapse
• The bubble that hammers — cavitation well past inception — driven by 1.0 bar · bubble-collapse
• Twice the margin, on top of the hammer — any Reynolds number — friction absent; V₀ = 1 m/s, H₀ = 25 m · surge
• Twice the margin, on top of the hammer — any Reynolds number — friction absent; V₀ = 1 m/s, H₀ = 25 m · surge
• When a body tears the water — cavitation number σ = 1, inception at σ_i = 1.428 · cavitation-map · hero
• When a body tears the water — cavitation number σ = 1, inception at σ_i = 1.428 · cavitation-map
• Nothing sucks — cavitation number σ = 1.2, inception at σ_i = 2.161 · cavitation-map
• A threshold that is also a duration — 1.5 bar of tension, a 5 micron bubble — cavitation inception · how-long-a-machine-remembers
• When a body tears the water — cavitation number σ = 2, inception at σ_i = 3.161 · cavitation-map
• The air that breaks a siphon nothing else can — water at 5, 20 and 30 °C — above the vapour pressure, ideal gas, air's composition in the released phase · siphon-profile · hero
• The air that breaks a siphon nothing else can — water at 5, 20 and 30 °C — above the vapour pressure, ideal gas, air's composition in the released phase · siphon-profile
• The bubble that hammers — cavitation well past inception — driven by 10.0 bar · bubble-collapse
• The bubble that hammers — cavitation well past inception — driven by 10.0 bar · bubble-collapse
• A breaking strength that is the size of a flaw — rigid rotation, water at 20 °C, until a cavity nucleates; the borrowed line is a measurement at 10 °C · absolute-pressure
• A breaking strength that is the size of a flaw — water, 20 °C unless marked — each bar an absolute pressure at which a cavity nucleates or would · absolute-pressure
• The air that breaks a siphon nothing else can — water at 20 °C, saturated at one atmosphere, above the vapour pressure — equilibrium bound · siphon-profile
• The air that breaks a siphon nothing else can — water at 20 °C — a ratio of equilibria above the vapour pressure, not a release · siphon-profile
• The air that breaks a siphon nothing else can — water at 20 °C, 12.5 mm hose, above the vapour pressure — the released fraction is prescribed · siphon-profile
• The margin friction lends a siphon — water at 20 °C with nuclei present — the column parts at the vapour pressure · siphon-profile
• The siphon that does not break — water at 20 °C — the floor is the vapour pressure, and friction is not modelled · siphon-profile
• The siphon that does not need the air — water at 20 °C — the floor is the vapour pressure, and friction is not modelled · siphon-profile
• The siphon that does not need the air — water at 20 °C — the ceiling is a property of the liquid, not of the tube · siphon-profile
• The siphon that does not need the air — set by the vapour pressure — water and mercury at 20 °C, and one borrowed measurement · siphon-profile
• The siphon that does not need the air — water at 20 °C — the ceiling is a property of the liquid, not of the tube · siphon-profile
• The siphon that does not need the air — water at 20 °C — the floor is the vapour pressure, and friction is not modelled · siphon-profile
• The venturi that stops listening downstream — vapour at 20 °C and its vapour pressure — no mass transfer during the wave · venturi-claim
• Where a liquid does pull — 20 °C, air-seeded cavity inception at a pit — the gas side at atmospheric, as in an embolised conduit · absolute-pressure
• Where a liquid does pull — 20 °C, soil at −0.1 MPa, conduit and pits prescribed — the limit is air-seeded cavity inception · absolute-pressure
• Where a liquid does pull — water, 20 °C unless marked — each bar an absolute pressure at which a cavity nucleates or would · absolute-pressure
• A breaking strength that is the size of a flaw — first order in the compressibility, no cavity allowed to nucleate; fillings above 40 °C not drawn · absolute-pressure
• A tank that turns a hammer into a swing — wave speed 1000 m/s, linear closure, quasi-steady friction, no cavity model · surge
• Drag in the theory that forbids it — cavitation number 0 and 1.2, against a measurement above Re 10⁴ · cavity-flow
• Where the unknown boundary is the known one — cavitation number 0 and 1.2, against a measurement above Re 10⁴ · cavity-flow

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