An Experimental Investigation of an Acoustic Method for Measuring Gas Mass Flow
Airflow through the test section of a 1- by 1-ft transonic wind tunnel under subsonic flow conditions was measured by an acoustic method to evaluate feasibility of the method. The method was based on measuring the time of travel of an acoustic signal between a transmitter and a receiver which were l...
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| creator | David, L J Giltinan, T L |
| description | Airflow through the test section of a 1- by 1-ft transonic wind tunnel under subsonic flow conditions was measured by an acoustic method to evaluate feasibility of the method. The method was based on measuring the time of travel of an acoustic signal between a transmitter and a receiver which were located on opposite walls of the tunnel on a line perpendicular to the direction of airflow. An electrical discharge arc-gap transmitter was developed which emits a signal pressure wave with an output intensity significantly greater than that of the tunnel noise. Calibration of the wave velocity increment under quiescent conditions demonstrated good repeatability.
Prepared in cooperation with ARO, Inc., Tullahoma, TN. Rept. no. ARO-PWT-TR-73-5. |
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Prepared in cooperation with ARO, Inc., Tullahoma, TN. Rept. no. ARO-PWT-TR-73-5.</description><language>eng</language><subject>ACOUSTIC EQUIPMENT ; ACOUSTIC SIGNALS ; AIR ; CORRELATION TECHNIQUES ; ELECTRIC DISCHARGES ; FEASIBILITY STUDIES ; GAS FLOW ; MATHEMATICAL MODELS ; MEASUREMENT ; PRESSURE ; SUBSONIC FLOW ; TEST EQUIPMENT ; Test Facilities, Equipment and Methods ; TIME ; TRANSONIC WIND TUNNELS ; WAVE PROPAGATION</subject><creationdate>1973</creationdate><rights>Approved for public release; distribution is unlimited.</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,780,885,27567,27568</link.rule.ids><linktorsrc>$$Uhttps://apps.dtic.mil/sti/citations/AD0766419$$EView_record_in_DTIC$$FView_record_in_$$GDTIC$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>David, L J</creatorcontrib><creatorcontrib>Giltinan, T L</creatorcontrib><creatorcontrib>ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN</creatorcontrib><title>An Experimental Investigation of an Acoustic Method for Measuring Gas Mass Flow</title><description>Airflow through the test section of a 1- by 1-ft transonic wind tunnel under subsonic flow conditions was measured by an acoustic method to evaluate feasibility of the method. The method was based on measuring the time of travel of an acoustic signal between a transmitter and a receiver which were located on opposite walls of the tunnel on a line perpendicular to the direction of airflow. An electrical discharge arc-gap transmitter was developed which emits a signal pressure wave with an output intensity significantly greater than that of the tunnel noise. Calibration of the wave velocity increment under quiescent conditions demonstrated good repeatability.
Prepared in cooperation with ARO, Inc., Tullahoma, TN. Rept. no. ARO-PWT-TR-73-5.</description><subject>ACOUSTIC EQUIPMENT</subject><subject>ACOUSTIC SIGNALS</subject><subject>AIR</subject><subject>CORRELATION TECHNIQUES</subject><subject>ELECTRIC DISCHARGES</subject><subject>FEASIBILITY STUDIES</subject><subject>GAS FLOW</subject><subject>MATHEMATICAL MODELS</subject><subject>MEASUREMENT</subject><subject>PRESSURE</subject><subject>SUBSONIC FLOW</subject><subject>TEST EQUIPMENT</subject><subject>Test Facilities, Equipment and Methods</subject><subject>TIME</subject><subject>TRANSONIC WIND TUNNELS</subject><subject>WAVE PROPAGATION</subject><fulltext>true</fulltext><rsrctype>report</rsrctype><creationdate>1973</creationdate><recordtype>report</recordtype><sourceid>1RU</sourceid><recordid>eNrjZPB3zFNwrShILcrMTc0rScxR8MwrSy0uyUxPLMnMz1PIT1NIzFNwTM4vBYolK_imlmTkpyik5RcBmYnFpUWZeekK7onFCr6JxcUKbjn55TwMrGmJOcWpvFCam0HGzTXE2UM3Bag_HmhIXmpJvKOLgbmZmYmhpTEBaQDfDzMs</recordid><startdate>197309</startdate><enddate>197309</enddate><creator>David, L J</creator><creator>Giltinan, T L</creator><scope>1RU</scope><scope>BHM</scope></search><sort><creationdate>197309</creationdate><title>An Experimental Investigation of an Acoustic Method for Measuring Gas Mass Flow</title><author>David, L J ; Giltinan, T L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-dtic_stinet_AD07664193</frbrgroupid><rsrctype>reports</rsrctype><prefilter>reports</prefilter><language>eng</language><creationdate>1973</creationdate><topic>ACOUSTIC EQUIPMENT</topic><topic>ACOUSTIC SIGNALS</topic><topic>AIR</topic><topic>CORRELATION TECHNIQUES</topic><topic>ELECTRIC DISCHARGES</topic><topic>FEASIBILITY STUDIES</topic><topic>GAS FLOW</topic><topic>MATHEMATICAL MODELS</topic><topic>MEASUREMENT</topic><topic>PRESSURE</topic><topic>SUBSONIC FLOW</topic><topic>TEST EQUIPMENT</topic><topic>Test Facilities, Equipment and Methods</topic><topic>TIME</topic><topic>TRANSONIC WIND TUNNELS</topic><topic>WAVE PROPAGATION</topic><toplevel>online_resources</toplevel><creatorcontrib>David, L J</creatorcontrib><creatorcontrib>Giltinan, T L</creatorcontrib><creatorcontrib>ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN</creatorcontrib><collection>DTIC Technical Reports</collection><collection>DTIC STINET</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>David, L J</au><au>Giltinan, T L</au><aucorp>ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN</aucorp><format>book</format><genre>unknown</genre><ristype>RPRT</ristype><btitle>An Experimental Investigation of an Acoustic Method for Measuring Gas Mass Flow</btitle><date>1973-09</date><risdate>1973</risdate><abstract>Airflow through the test section of a 1- by 1-ft transonic wind tunnel under subsonic flow conditions was measured by an acoustic method to evaluate feasibility of the method. The method was based on measuring the time of travel of an acoustic signal between a transmitter and a receiver which were located on opposite walls of the tunnel on a line perpendicular to the direction of airflow. An electrical discharge arc-gap transmitter was developed which emits a signal pressure wave with an output intensity significantly greater than that of the tunnel noise. Calibration of the wave velocity increment under quiescent conditions demonstrated good repeatability.
Prepared in cooperation with ARO, Inc., Tullahoma, TN. Rept. no. ARO-PWT-TR-73-5.</abstract><oa>free_for_read</oa></addata></record> |
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| source | DTIC Technical Reports |
| subjects | ACOUSTIC EQUIPMENT ACOUSTIC SIGNALS AIR CORRELATION TECHNIQUES ELECTRIC DISCHARGES FEASIBILITY STUDIES GAS FLOW MATHEMATICAL MODELS MEASUREMENT PRESSURE SUBSONIC FLOW TEST EQUIPMENT Test Facilities, Equipment and Methods TIME TRANSONIC WIND TUNNELS WAVE PROPAGATION |
| title | An Experimental Investigation of an Acoustic Method for Measuring Gas Mass Flow |
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