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Cavitation errosion
| Глоссарий по тестированию |
Loss of material due to the repeated formation and collapse of bubbles at the surface of an object in contact with a rapidly flowing liquid. ccd: see charge coupled device. celsius (centigrade): temperature scale based on 273 k (0 °c = +32 °f) as the freezing point of water and 373 k (100 °c = 212 °f) as the boiling point of water at standard atmospheric pressure. a relative scale related to the kelvin scale (0 °c = 273.12 k; 1 °c = 1 k).
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Cavitating disk device, английский
Дисковое устройство для испытания на кавитацию (состоит из диска с отверстиями, быстро вращающегося в жидкости и создающего коллапсирующие пузырьки, которые воздействуют на помещенные в устройстве опытные образцы)
Cavitation, английский
- Кавитация - явление, возникающее на плавнике на очень большой скорости (срыв потока), за чем неизбежен спин-аут (spin out)
- 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 violent collapse of a vapor bubble. cavitation can occur in a hydraulic system as a result of low fluid levels that draw air into the fluid, producing tiny bubbles that expand followed by rapid implosion, causing metal erosion and eventual pump destruction.
- Кавитация
- Кавитация, образование пустот
- A phenomenon in the flow of water consisting in the formation and the collapse of cavities in water.
- The forming of a cavity
- The formation and collapse of air bubbles created by a ship’s propeller. this reduces effective thrust, creates noise detectible by an enemy, and may cause structural damage.
- The formation of a pocket (bubble) of air or vapor in a liquid, typically resulting from the swift movement of a solid object (such as a propeller or piston) through the liquid. also, the pitting and wearing away of metal or other solid surfaces caused by the collapse of air/vapor pockets in surrounding liquid.
- Describes the continous pumping of mud from surface-level mud tanks, down the drill pipe, out the drill bit nozzles, and through the gap between the drill pipe and the borehole to the surface. this movement carries rock cuttings via the shale shaker to the mud system.
Cavitation (hydraulics), английский
When the absolute pressure in a pump intake line is reduced below the vapor pressure of the liquid, the fluid may vaporize, or “boil”, or the dissolved air in the fluid may separate. in either case, as the bubbles go through the pump, they collapse or implode and damage the metal of the pump.
Cavitation bound a ry, английский
Граница кавитации 8 . cav i ta t i on wear кавитационное изнашива- ние
Cavitation cloud, английский
Кавитационное облако (скопление большого числа кавитационных пузырьков, затемняющих эродируемую поверхность при наблюдении за ней)
Cavitation corrosion, английский
Cavitation damage, английский
The pitting of concrete caused by implosion (collapse) of bubbles in flowing water.
Cavitation erosion, английский
- A material-damaging process which occurs as a result of vaporous cavitation. "cavitation" refers to the occurrence or formation of gas- or vapor- filled pockets in flowing liquids due to the hydrodynamic generation of low pressure (below atmospheric pressure). this damage results from the hammering action when cavitation bubbles implode in the flow stream. ultra-high pressures caused by the collapse of the vapor bubbles produce deformation, material failure and, finally, erosion of the surfaces.
- Loss of material due to the repeated formation and collapse of bubbles at the surface of an object in contact with a rapidly flowing liquid. glossary c 493 celsius (centigrade): temperature scale based on 273 k (0 °c = +32 °f) as the freezing point of water and 373 k (100 °c = 212 °f) as the boiling point of water at standard atmospheric pressure. a relative scale related to the kelvin scale (0 °c = 273.12 k; 1 °c = 1 k).
Cavitation fatigue, английский
Form of pitting, caused by erosion from vibration and movement in liquid environments. ccd: see charge coupled device.
Cavitation flow, английский
Cavitation influence, английский
Влияние кавитации
Cavitation liposuction, английский
Cavitation noise, английский
Кавитационный шум
Cavitation nuclei, английский
Cavitation number, английский
Число кавитации
Cavitation performance of pump, английский
Кавитационная характеристика насоса
Cavitation resistance, английский
Стойкость к кавитации
Cavitation threshold, английский
Cavitations, английский
The number of molding stations within a mold.
Centigrade, английский
- A temperature scale with the freezing point of water at 0 degrees and the boiling point at 100 degrees at sea level. also known as the celsius scale.
- По стоградусной шкале, по шкале цельсия
- The thermometer scale, divided into 100 degrees, in which 0°c is the freezing point of water and 100°c is the boiling point.
- Same as celsius
- Celsius.
- Цельсия.
Temperature, английский
- Température
- Dry-bulb - temperature of air as indicated by a standard thermometer.
- An expression of thermal energy density. how hot or cold an object is.
- The measure of the intensity of heat that a substance possesses.
- Температура
- Температура тмр test methods and procedures методы проведения испытаний и последовательность их проведения тмр theodolite measuring point кинотеодолитная станция
- Temperatura, fiebre
- The condition attained when the wetted wick of a wet-bulb thermometer has reached a stable and constant temperature when exposed to moving air in excess of 900 ft (274.3 m) per minute.
- 1. the heat of the body or of the surrounding air, measured in degrees the doctor asked the nurse what the patient’s temperature was. his temperature was slightly above normal. the thermometer showed a temperature of 99°f. to take a patient’s temperature to insert a thermometer in someone’s body to see what his or her body temperature is they took his temperature every four hours. when her temperature was taken this morning, it was normal. 2. illness when your body is hotter than normal he’s in bed with a temperature. her mother says she’s got a temperature, and can’t come to work. comment: the average body temperature is about 37° celsius or 98° fahrenheit. this temperature may vary during the day, and can rise if a person has taken a hot bath or had a hot drink. if the environmental temperature is high, the body has to sweat to reduce the heat gained from the air around it. if the outside temperature is low, the body shivers, because rapid movement of the muscles generates heat. a fever will cause the body temperature to rise sharply, to 40°c (103°f) or more. hypothermia exists when the body temperature falls below about 35°c (95°f).
- Повышение температуры бетона ~ of truss высота фермы jet ~ высота подъёма горизонтальной неизотермической приточной струи, «всплывающей» над приточным отверстием
- Температура ~ of adiabatic saturation температура адиабатического насыщения
- Normal adult temperature varies among horses, but will usually range in degrees from 99.5°f to 100.5°f.
- A measure of the average kinetic energy of a material. the standard unit of temperature is a kelvin, (k). temperature determines the direction of heat flow between any two systems in thermal contact. heat will always flow from the area of higher temperature (t source) to one of lower temperature (t sink). temperature gradient (?t)
- A measure of the degree of molecular motion of a material compared to a reference point. temperature is measured in degrees farenheit (melting point of ice = 32 º f, boiling point of water = 212 º f) or degrees celsius (melting point of ice = 0 º c, boiling point of water = 100 º c).
- The degree of sensible heat of a body as measured by a thermometer or similar instrument.
- Measure of the intensity of particle motion in degrees celsius (°c) or degrees fahrenheit (°f) or, in the absolute scale, kelvin (k), where the increment of 1 k = 1 °c = 1.8 °f.
- Temperature of surrounding atmosphere. also called dry bulb temperature. compare standard atmospheric conditions. ampere (a): si unit of electric current. ampere per meter (a·m–1): si derived unit of magnetic field intensity. the measurement 1 a·m–1, for example, describes a current of 1 a flowing through a coil that is 1 m in diameter. compare oersted. ampere turn (at): in magnetic particle testing, unit for expressing the magnetomotive force required for magnetization using a coil in terms of the product of the number of coil turns and the current in amperes flowing through the coil. amplitude, echo: in ultrasonic testing, the vertical height of a received signal on an a-scan, measured from base to peak for a video presentation or from peak to peak for a radio frequency presentation.
- Measure of the intensity of particle motion in degrees celsius (°c), degrees fahrenheit (°f) or, in the absolute scale, kelvin (k) or degrees rankine (°r). an increment of 1 k = 1 °c = 1.8 °r = 1.8 °f. compare heat.
Atmospheric, английский
Атмосферный -
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Centrifuge tube, английский
- In magnetic particle testing, vial that holds liquids and has graduations to indicate the concentration of solids that settle out of a known suspension volume.
- Vial that holds liquids and has graduations to indicate the concentration of solids that settle out of a known suspension volume. magnetic testing glossary 377
Capacitor discharge technique, английский
In magnetic particle testing, magnetization technique generally characterized by a short duration, high intensity electrical pulse, often performed on oil country tubular goods. capacity, heat: ability of a material or structure to store heat. the product of the specific heat and the density of the material. this means that denser materials generally will have higher heat capacities than porous materials. heat capacity is the amount of energy (j·m–3·k–1) required to elevate by one degree a given volume of material. among common materials, water has one of the highest heat capacities; air, one of the lowest. compare capacitance, thermal; conductivity, thermal.
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