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- Churn_turbulent_flow abstract "Churn turbulent flow is a two phase gas-liquid flow regime characterized by a highly agitated flow where gas bubbles are sufficient in numbers to both interact with each other and, while interacting, coalesce to form larger distorted bubbles with unique shapes and behaviors in the system. This flow regime is created when there is a large gas fraction in a system with a high gas and low liquid velocity. It is an important flow regime to understand and model because of its predictive value in nuclear reactor vessel boiling flow.In Fluid dynamics, many a times we encounter bubble flow. Initially the number of bubbles in the flow is low, this we call as ideally-separated bubble flow. In this type of flow the bubbles don’t interact each other directly or indirectly but as the number of bubbles increase they started colliding each other and their size get reduced. Suddenly a situation comes when they tend to coalesce to form cap bubbles, and the new flow pattern formed is called churn turbulent flow. The bubbles occurring in such a flow can be classified in small, large, and distorted bubbles. The small bubbles are generally spherical or elliptical and are encountered in a major concentration in the wake of large and distorted bubbles and close to the walls. Large, -ellipsoidal or cap bubbles can be found in the core region of the flow as well as the distorted bubbles with a highly deformed interface.Churn-turbulent flow has a high application in industries. It is commonly encountered in industrial applications, and so there is a necessity to understand the physics behind it, and model it in a much efficient and accurate manner. A typical example of churn turbulent flow is boiling flow in nuclear reactors. Especially for many accident scenarios, boiling may lead to high void portion including churn-turbulent flow. Its flow structure may have a strong impact on the safety. For all these reasons, consistent predictions of such flows are an important and major issue for safety analyses.".
- Churn_turbulent_flow wikiPageID "44328955".
- Churn_turbulent_flow wikiPageLength "7498".
- Churn_turbulent_flow wikiPageOutDegree "2".
- Churn_turbulent_flow wikiPageRevisionID "649821687".
- Churn_turbulent_flow wikiPageWikiLink Category:Flow_regimes.
- Churn_turbulent_flow wikiPageWikiLink Category:Turbulence_models.
- Churn_turbulent_flow hasPhotoCollection Churn_turbulent_flow.
- Churn_turbulent_flow wikiPageUsesTemplate Template:No_footnotes.
- Churn_turbulent_flow wikiPageUsesTemplate Template:Reflist.
- Churn_turbulent_flow subject Category:Flow_regimes.
- Churn_turbulent_flow subject Category:Turbulence_models.
- Churn_turbulent_flow comment "Churn turbulent flow is a two phase gas-liquid flow regime characterized by a highly agitated flow where gas bubbles are sufficient in numbers to both interact with each other and, while interacting, coalesce to form larger distorted bubbles with unique shapes and behaviors in the system. This flow regime is created when there is a large gas fraction in a system with a high gas and low liquid velocity.".
- Churn_turbulent_flow label "Churn turbulent flow".
- Churn_turbulent_flow sameAs m.012840ps.
- Churn_turbulent_flow wasDerivedFrom Churn_turbulent_flow?oldid=649821687.
- Churn_turbulent_flow isPrimaryTopicOf Churn_turbulent_flow.