kavitasyon, aşınma

Turkish - English

Definition of kavitasyon, aşınma in Turkish English dictionary

(İnşaat) cavitation

The formation, in a fluid, of vapor bubbles that rapidly collapse; especially in a rotating marine propeller or pump impeller

Formation of vapour bubbles within a liquid at low-pressure regions that occur in places where the liquid has been accelerated to high velocities, as in the operation of centrifugal pumps, water turbines, and marine propellers. Cavitation is undesirable because it produces extensive erosion of the rotating blades, additional noise from the resultant knocking and vibrations, and a significant reduction of efficiency because it distorts the flow pattern. The cavities form when the pressure of the liquid has been reduced to its vapour pressure; they expand as the pressure is further reduced along with the flow, and they suddenly collapse when they reach regions of higher pressure

The rapid formation and depletion of air bubbles that can damage the material at the solid/liquid interface under conditions of severe turbulent flow

formation of an air or vapor pocket (or bubble) due to lowering of pressure in a liquid, often as a result of a solid body, such as a propeller or piston, moving through the liquid; also, the pitting or wearing away of a solid surface as a result of the collapse of a vapor bubble Cavitation can occur in a hydraulic system as a result of low fluid levels that draw air into the system, producing tiny bubbles that expand explosively at the pump outlet, causing metal erosion and eventual pump destruction

Formation of a n air or vapor bubble due to lowering of pressure in a liquid, often as a result of a solid body, such as a propeller or piston, moving through the liquid; also, the pitting or wearing away of a solid surface as a result of the collapse of a vapor bubble Cavitation can occur in a hydraulic system as a result of low fluid levels that draw air into the system, producing tiny bubbles that expand explosively at the pump outlet, causing metal erosion and eventual pump destruction

Damage can occur in regions associated with steep liquid velocity gradients, where vapour-filled voids may form and collapse supersonically, causing shock waves that damage the metal by severe localised attack through massive momentum transfer to the metal Areas subject to local boiling, and dead-end-locations can be prone to similar damage [back] [top]

The formation of bubbles in a liquid, occurring whenever the static pressure at any point in the fluid flow becomes less than the fluid vapor pressure

The sudden formation and collapse of air bubbles in water due to turbulence If air bubbles pass over the face of the transducer, the signal from the transducer is reflected back by the air bubbles These reflections are very strong and will result in noise which will interfere with bottom, structure and fish signals, making them difficult or impossible to see

(noun) The production of voids in a liquid system due to extreme reduction of internal pressure Collapse of these voids or cavities produces very large impulsive pressure, which can cause considerable damage to nearby surfaces Cavitation is frequent on high speed propeller blades and also occurs in the region of the electrical heating element in a bubble jet (THERMAL IMPULSE) system due to the rapid collapse of the bubbles Cavitation, if prolonged and great enough, will frequently cause destruction, ablation or erosion of a solid surface

{i} creation of cavities (Medicine, Physics)

A condition that occurs in pumping when available fluid does not fill the existing space; cavitation causes erosion of the metal in the inlet and speeds deterioration of the hydraulic oil

The vaporization of a liquid under the suction force of a pump which can create voids within the pump supply line Cavitation will result in off-ratio foam in Sprayed Polyurethane Foam applications

The number of molding stations within a mold

A condition which can occur in liquid handling machinery (e g centrifugal pumps) where a system pressure decrease in the suction line and pump inlet lowers fluid pressure and vaporization occurs The result is mixed flow which may produce vibration

formation of an air or vapor pocket (or bubble) due to lowering pressure in a liquid, often as a result of the collapse of a vapor bubble Cavitation can occur in a hydraulic system as a result of low fluid levels that draw air into the system, producing tiny bubbles that expand explosively at the pump outlet, causing metal erosion and eventual pump destruction Cavitation can also result when reduced pressure in lubricating dispensing systems forms a void, or cavity, which impedes suction and prevents the flow of greases

The boiling of a liquid caused by a decrease in pressure rather than an increase in temperature

The formation of cavities in an organ, especially in lung tissue as a result of tuberculosis

Production of gas from liquid

The 'pop' or 'click' heard from a chiropractic adjustment The sound is merely a release of gas from the joints of the spine like cracking your knuckle

The vacuum created when the discharge capacity of the pump exceeds the replacement in the suction line Cavitation occurs when the pump is oversized, when the diameter of the influent line is too small or when there is an excessively long influent line Cavitation causes bubbling and vibrations that can damage the pump if they occur over an extended period

Hyphenation

ka·vi·tas·yon, a·şın·ma