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- Cavitation abstract "Cavitation is the formation of vapour cavities in a liquid – i.e. small liquid-free zones ("bubbles" or "voids") – that are the consequence of forces acting upon the liquid. It usually occurs when a liquid is subjected to rapid changes of pressure that cause the formation of cavities where the pressure is relatively low. When subjected to higher pressure, the voids implode and can generate an intense shockwave.Cavitation is a significant cause of wear in some engineering contexts. Collapsing voids that implode near to a metal surface cause cyclic stress through repeated implosion. This results in surface fatigue of the metal causing a type of wear also called "cavitation". The most common examples of this kind of wear are to pump impellers, and bends where a sudden change in the direction of liquid occurs. Cavitation is usually divided into two classes of behavior: inertial (or transient) cavitation and non-inertial cavitation.Inertial cavitation is the process where a void or bubble in a liquid rapidly collapses, producing a shock wave. Inertial cavitation occurs in nature in the strikes of mantis shrimps and pistol shrimps, as well as in the vascular tissues of plants. In man-made objects, it can occur in control valves, pumps, propellers and impellers.Non-inertial cavitation is the process in which a bubble in a fluid is forced to oscillate in size or shape due to some form of energy input, such as an acoustic field. Such cavitation is often employed in ultrasonic cleaning baths and can also be observed in pumps, propellers, etc.Since the shock waves formed by collapse of the voids are strong enough to cause significant damage to moving parts, cavitation is usually an undesirable phenomenon. It is very often specifically avoided in the design of machines such as turbines or propellers, and eliminating cavitation is a major field in the study of fluid dynamics. However, it is sometimes useful and does not cause damage when the bubbles collapse away from machinery, such as in supercavitation.".
- Cavitation thumbnail Cavitating-prop.jpg?width=300.
- Cavitation wikiPageExternalLink bubbles.epfl.ch.
- Cavitation wikiPageExternalLink bubble.htm.
- Cavitation wikiPageExternalLink multiph.htm.
- Cavitation wikiPageExternalLink cav.safl.umn.edu.
- Cavitation wikiPageExternalLink S0142-727X(03)00003-1.
- Cavitation wikiPageExternalLink 479.
- Cavitation wikiPageExternalLink www.arisdyne.com.
- Cavitation wikiPageExternalLink cavitation.htm.
- Cavitation wikiPageExternalLink article.jsp?article_id=5732&q=tiny%20bubbles&category_id=46.
- Cavitation wikiPageExternalLink dn13553-dolphins-swim-so-fast-it-hurts.html.
- Cavitation wikiPageID "7807".
- Cavitation wikiPageRevisionID "604205226".
- Cavitation hasPhotoCollection Cavitation.
- Cavitation subject Category:Fluid_dynamics.
- Cavitation type Artifact100021939.
- Cavitation type Device103183080.
- Cavitation type Instrumentality103575240.
- Cavitation type MechanicalDevice103736970.
- Cavitation type Mechanism103738472.
- Cavitation type Object100002684.
- Cavitation type PhysicalEntity100001930.
- Cavitation type Pump104021798.
- Cavitation type Pumps.
- Cavitation type Whole100003553.
- Cavitation comment "Cavitation is the formation of vapour cavities in a liquid – i.e. small liquid-free zones ("bubbles" or "voids") – that are the consequence of forces acting upon the liquid. It usually occurs when a liquid is subjected to rapid changes of pressure that cause the formation of cavities where the pressure is relatively low. When subjected to higher pressure, the voids implode and can generate an intense shockwave.Cavitation is a significant cause of wear in some engineering contexts.".
- Cavitation label "Cavitación".
- Cavitation label "Cavitatie".
- Cavitation label "Cavitation".
- Cavitation label "Cavitation".
- Cavitation label "Cavitazione".
- Cavitation label "Cavitação".
- Cavitation label "Kavitation".
- Cavitation label "Kawitacja".
- Cavitation label "Кавитация".
- Cavitation label "تكهف".
- Cavitation label "キャビテーション".
- Cavitation label "空穴現象".
- Cavitation sameAs Kavitace.
- Cavitation sameAs Kavitation.
- Cavitation sameAs Σπηλαίωση.
- Cavitation sameAs Cavitación.
- Cavitation sameAs Cavitation.
- Cavitation sameAs Cavitazione.
- Cavitation sameAs キャビテーション.
- Cavitation sameAs 공동현상.
- Cavitation sameAs Cavitatie.
- Cavitation sameAs Kawitacja.
- Cavitation sameAs Cavitação.
- Cavitation sameAs m.025xj.
- Cavitation sameAs Q201666.
- Cavitation sameAs Q201666.
- Cavitation sameAs Cavitation.
- Cavitation wasDerivedFrom Cavitation?oldid=604205226.
- Cavitation depiction Cavitating-prop.jpg.
- Cavitation isPrimaryTopicOf Cavitation.
