Read Laser Doppler Velocity Measurements of Swirling Flows with Upstream Influence

Laser Doppler Velocity Measurements of Swirling Flows with Upstream Influence

Kenneth L. Orloff

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Description:Swirling flow in a rotating tube is studied by flow visualization at a moderate Reynolds number, and its velocity field is measured by laser-Doppler anemometry. The tube has constant diameter, and approximately uniform initial rigid rotation of the flow is assured by passing the flow through a rotating plug of porous metal before it enters the test section. At moderate swirl values, an object mounted on the tube centerline causes a closed bubble to form upstream of the obstacle, with a clearly defined stagnation point on the axis, and recirculating flow inside the bubble. The bubble length grows upstream as the swirl is increased, until it breaks up into a Taylor column reaching all the way upstream and downstream at swirl values above a certain critical value. A vortex jump (in the sense of Benjamin) occurs downstream of the obstacle except when the Taylor column is present. Using a laser-Doppler anemometer, axial and swirl velocity profiles are obtained at several stations upstream and downstream of the bubble, and in and around the bubble.We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Laser Doppler Velocity Measurements of Swirling Flows with Upstream Influence. To get started finding Laser Doppler Velocity Measurements of Swirling Flows with Upstream Influence, you are right to find our website which has a comprehensive collection of manuals listed.
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Pages: 50

Format: PDF, EPUB & Kindle Edition

Publisher: —

Release: 1973

ISBN: dh4vAQAAIAAJ

Description: Swirling flow in a rotating tube is studied by flow visualization at a moderate Reynolds number, and its velocity field is measured by laser-Doppler anemometry. The tube has constant diameter, and approximately uniform initial rigid rotation of the flow is assured by passing the flow through a rotating plug of porous metal before it enters the test section. At moderate swirl values, an object mounted on the tube centerline causes a closed bubble to form upstream of the obstacle, with a clearly defined stagnation point on the axis, and recirculating flow inside the bubble. The bubble length grows upstream as the swirl is increased, until it breaks up into a Taylor column reaching all the way upstream and downstream at swirl values above a certain critical value. A vortex jump (in the sense of Benjamin) occurs downstream of the obstacle except when the Taylor column is present. Using a laser-Doppler anemometer, axial and swirl velocity profiles are obtained at several stations upstream and downstream of the bubble, and in and around the bubble.We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Laser Doppler Velocity Measurements of Swirling Flows with Upstream Influence. To get started finding Laser Doppler Velocity Measurements of Swirling Flows with Upstream Influence, you are right to find our website which has a comprehensive collection of manuals listed.
Our library is the biggest of these that have literally hundreds of thousands of different products represented.

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Laser Doppler Velocity Measurements of Swirling Flows with Upstream Influence

Laser Doppler Velocity Measurements of Swirling Flows with Upstream Influence

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