@conference{871521, author = {John Wright and Keith Gillis and Aaron Johnson and Ida Shinder}, title = {Back Pressure Ratio and the Transonic Resonance Mechanism of Low Unchoking in Critical Flow Venturis}, year = {2016}, month = {2016-09-28 04:09:00}, publisher = {FLOMEKO 2016, Sydney, AU}, url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=921668}, language = {en}, }