Laminar-turbulent transition

The plume from an ordinary candle transitions from laminar to turbulent flow in this Schlieren photograph.

Reynolds’ experiment on fluid dynamics in pipes

Reynolds’ observations of the nature of the flow in his experiments

The path from receptivity to laminar-turbulent transition as illustrated by Morkovin, 1994.[2]

The process of a laminar flow becoming turbulent is known as laminar-turbulent transition. This is an extraordinarily complicated process which at present is not fully understood. However, as the result of many decades of intensive research, certain features have become gradually clear, and it is known that the process proceeds through a series of stages. "Transitional flow" can refer to transition in either direction, that is laminar-turbulent transitional or turbulent-laminar transitional flow.

单词	Transition flow
释义	Transition flow 英语百科 Laminar-turbulent transition The process of a laminar flow becoming turbulent is known as laminar-turbulent transition. This is an extraordinarily complicated process which at present is not fully understood. However, as the result of many decades of intensive research, certain features have become gradually clear, and it is known that the process proceeds through a series of stages. "Transitional flow" can refer to transition in either direction, that is laminar-turbulent transitional or turbulent-laminar transitional flow.
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Transition flow

Laminar-turbulent transition