Laser ultrasonic for Measurements of velocity distribution in pipes
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
2004
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| _version_ | 1876445772026740736 |
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| author | Margarita Navarrete Montesinos |
| author_facet | Margarita Navarrete Montesinos |
| contents | Laser ultrasonic for Measurements of velocity distribution in pipes Margarita Navarrete Montesinos J. Francisco Hernández Valle Jorge L. Morales Romero M. Villagrán Muniz Ingeniería Laser Velocimetry Turbulent pipe flow induced blast waves The present work describes the development of a photoacoustic flowmeter with probe-beam deflection. A pulsedlaser beam produces an acoustic pulse, whose propagation is registered by its deflection effects on two cw probebeams. The acoustic pulse in a flowing fluid is produced by absorption of a laser pulse (30 ns, 1.1 mJ) focused overa path flow line. The acoustic propagations, along and against the flow, are monitored by two cw probe beams. Inthe interaction, the probe beam undergoes a transient deflection that is detected by a fast response photodiode.The velocity distribution data profile of a square pipe is obtained by means of the acoustic pulse arrival timemeasured through its cross section applying the cylindrical shockwave model developed by Vlasses. The profilesdetermined with this experimental technique are compared with two turbulent pipe flow models. 2004 artículo científico 1665-6423 https://www.redalyc.org/articulo.oa?id=47402306 en http://www.redalyc.org/revista.oa?id=474 Journal of Applied Research and Technology application/pdf Universidad Nacional Autónoma de México Journal of Applied Research and Technology (México) Num.3 Vol.2 |
| format | Artículo científico |
| id | redalyc_47402306 |
| institution | Redalyc |
| language | en |
| publishDate | 2004 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Laser ultrasonic for Measurements of velocity distribution in pipes Margarita Navarrete Montesinos Ingeniería Laser Velocimetry Turbulent pipe flow induced blast waves Laser ultrasonic for Measurements of velocity distribution in pipes Margarita Navarrete Montesinos J. Francisco Hernández Valle Jorge L. Morales Romero M. Villagrán Muniz Ingeniería Laser Velocimetry Turbulent pipe flow induced blast waves The present work describes the development of a photoacoustic flowmeter with probe-beam deflection. A pulsedlaser beam produces an acoustic pulse, whose propagation is registered by its deflection effects on two cw probebeams. The acoustic pulse in a flowing fluid is produced by absorption of a laser pulse (30 ns, 1.1 mJ) focused overa path flow line. The acoustic propagations, along and against the flow, are monitored by two cw probe beams. Inthe interaction, the probe beam undergoes a transient deflection that is detected by a fast response photodiode.The velocity distribution data profile of a square pipe is obtained by means of the acoustic pulse arrival timemeasured through its cross section applying the cylindrical shockwave model developed by Vlasses. The profilesdetermined with this experimental technique are compared with two turbulent pipe flow models. 2004 artículo científico 1665-6423 https://www.redalyc.org/articulo.oa?id=47402306 en http://www.redalyc.org/revista.oa?id=474 Journal of Applied Research and Technology application/pdf Universidad Nacional Autónoma de México Journal of Applied Research and Technology (México) Num.3 Vol.2 |
| title | Laser ultrasonic for Measurements of velocity distribution in pipes |
| topic | Ingeniería Laser Velocimetry Turbulent pipe flow induced blast waves |
| url | https://www.redalyc.org/articulo.oa?id=47402306 |