Question
Download Solution PDFWhich of the following is the property of laminar flow in the liquids?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- Laminar flow: Laminar flow occurs when the fluid flows in infinitesimal parallel layers with no disruption between them. Fig. (a)
- In laminar flows, fluid layers slide in parallel, with no eddies, swirls, or currents normal to the flow itself.
- This type of flow is also referred to as streamline flow because it is characterized by non-crossing streamlines.
- Turbulent flow: In a closed pipe, when fluid layers slide is not in parallel to the other layer, then the flow is called turbulent flow. Fig. (b)
a)
b)
- Reynolds number: The Reynolds number is an important dimensionless quantity in fluid mechanics used to predict flow patterns in different fluid flow situations.
- Reynolds number is below 2300, laminar flow happens.
- Reynolds number is above approximately 4000, the flow will be turbulent.
- In between these two limits, the flow is termed as “transition flow”.
EXPLANATION:
- When the flow, fluids layers slide in parallel to another layer then flow is Laminar flow. So option 1 is correct.
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