{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,25]],"date-time":"2026-02-25T12:27:11Z","timestamp":1772022431928,"version":"3.50.1"},"reference-count":26,"publisher":"Acoustical Society of America (ASA)","issue":"5","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2006,5,1]]},"abstract":"<jats:p>Vocal fold geometry plays an important role in human phonation. A wide range of inferior and superior vocal fold surface angles has been shown to be present during phonation [Nanayakkara, Master\u2019s thesis, Bowling Green State University, Bowling Green, OH (2005)]. This study explored how these angles affect pressure distributions on the vocal folds, and thus how they may affect phonation. The computational code FLUENT was used to obtain pressure distributions for laminar, incompressible flow. Eighteen inferior vocal fold surface angles and nineteen superior vocal fold surface angles were selected for three specific glottal angles, uniform 0\u00b0, convergent 10\u00b0, and divergent 10\u00b0. Minimal glottal diameter (0.01cm), transglottal pressure (8cm\u2008H2O), and glottal entrance radius (0.15cm) were held constant, and the glottal exit radius was constant for each glottal angle. Results suggest that the vocal fold surface pressures are independent of the inferior and superior vocal fold surface angles realistic for human phonation. These results suggest that, in contrast to the important effects of glottal entrance and exit radii, minimal diameter, and angle on intraglottal pressures, the inferior and superior vocal fold surface angles (excluding possible interactive effects with the false vocal folds) do not have an influence on the intraglottal pressures.<\/jats:p>","DOI":"10.1121\/1.2186548","type":"journal-article","created":{"date-parts":[[2006,5,1]],"date-time":"2006-05-01T17:10:22Z","timestamp":1146503422000},"page":"3003-3010","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":32,"title":["Numerical study of the effects of inferior and superior vocal fold surface angles on vocal fold pressure distributions"],"prefix":"10.1121","volume":"119","author":[{"given":"Sheng","family":"Li","sequence":"first","affiliation":[{"name":"Xi\u2019an Jiaotong University The Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Department of Biomedical Engineering, School of Life Science and Technology, , Xi\u2019an 710049, People\u2019s Republic of China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ronald C.","family":"Scherer","sequence":"additional","affiliation":[{"name":"University of Cincinnati Medical Center Department of Otolaryngology\u2014Head and Neck Surgery, , P.O. Box 670528, Cincinnati, Ohio 45242"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"MingXi","family":"Wan","sequence":"additional","affiliation":[{"name":"Xi\u2019an Jiaotong University The Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Department of Biomedical Engineering, School of Life Science and Technology, , Xi\u2019an 710049, People\u2019s Republic of China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"SuPin","family":"Wang","sequence":"additional","affiliation":[{"name":"Xi\u2019an Jiaotong University The Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Department of Biomedical Engineering, School of Life Science and Technology, , Xi\u2019an 710049, People\u2019s Republic of China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"HuiHui","family":"Wu","sequence":"additional","affiliation":[{"name":"Xi\u2019an Jiaotong University The Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Department of Biomedical Engineering, School of Life Science and Technology, , Xi\u2019an 710049, People\u2019s Republic of China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"231","reference":[{"key":"2023073109245944600_c1","unstructured":"Agarwal, M. (2004). \u201cThe false vocal folds and their effect of translaryngeal airflow resistance,\u201d Ph.D. dissertation, Bowling Green State University, Bowling Green, OH."},{"key":"2023073109245944600_c2","doi-asserted-by":"publisher","first-page":"97","DOI":"10.1016\/S0892-1997(03)00012-2","article-title":"The false vocal folds: Shape and size in frontal view during phonation based on laminagraphic tracings","volume":"17","year":"2003","journal-title":"J. Voice"},{"key":"2023073109245944600_c3","doi-asserted-by":"publisher","first-page":"3003","DOI":"10.1121\/1.1324678","article-title":"A finite-element model of vocal fold vibration","volume":"108","year":"2000","journal-title":"J. Acoust. Soc. Am."},{"key":"2023073109245944600_c4","doi-asserted-by":"publisher","first-page":"75","DOI":"10.1006\/csla.1996.0005","article-title":"A numerical simulation of laryngeal flow in a forced-oscillation glottal model","volume":"10","year":"1996","journal-title":"Comput. 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A study of the conformation of the laryngo-pharynx in singers during alteration of intensity, frequency, and vowel, D.Music thesis, Indiana University, Bloomington [Indiana University Library MZ1. W748; ProQuest Dissertation and Theses Publication Number AAT 7223514]."},{"key":"2023073109245944600_c25","first-page":"31","article-title":"Variations of the laryngo-pharynx in singing","year":"1976"},{"key":"2023073109245944600_c26","doi-asserted-by":"publisher","first-page":"1720","DOI":"10.1121\/1.1779331","article-title":"Sound generation by steady flow through glottis-shaped orifices","volume":"116","year":"2004","journal-title":"J. Acoust. Soc. 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