Experiments on a Two-dimensional Impinging Jets on a Wedge : Mean Flow Properties
An experimental study was performed on the mean flow properties of a two-dimensional impinging jet on a wedge whose included angle is 90°. The variations in static pressure in the streamwise and transverse directions are large near the wedge vertex, and should not be neglected in the calculation of...
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| Veröffentlicht in: | Bulletin of JSME 1986, Vol.29(252), pp.1726-1731 |
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| container_end_page | 1731 |
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| container_issue | 252 |
| container_start_page | 1726 |
| container_title | Bulletin of JSME |
| container_volume | 29 |
| creator | YAMADA, Hiroya NAKAMURA, Ikuo YAMASHITA, Shintaro YANO, Haruhisa |
| description | An experimental study was performed on the mean flow properties of a two-dimensional impinging jet on a wedge whose included angle is 90°. The variations in static pressure in the streamwise and transverse directions are large near the wedge vertex, and should not be neglected in the calculation of these flows. The non-dimensional velocity profiles in the fully-developed-flow region far from the vertex do not coincide with the similar profile of the two-dimensional wall-jet. Also, the trends in the decay of the maximum velocities and in the growth of the half width of the present wall-jet are different from those of the two-dimensional wall-jet. The local skin friction coefficient is estimated and compared with the empirical formula proposed by several authors. The logarithmic velocity distribution is examined using the estimated skin friction coefficients. |
| doi_str_mv | 10.1299/jsme1958.29.1726 |
| format | Article |
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The variations in static pressure in the streamwise and transverse directions are large near the wedge vertex, and should not be neglected in the calculation of these flows. The non-dimensional velocity profiles in the fully-developed-flow region far from the vertex do not coincide with the similar profile of the two-dimensional wall-jet. Also, the trends in the decay of the maximum velocities and in the growth of the half width of the present wall-jet are different from those of the two-dimensional wall-jet. The local skin friction coefficient is estimated and compared with the empirical formula proposed by several authors. 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The variations in static pressure in the streamwise and transverse directions are large near the wedge vertex, and should not be neglected in the calculation of these flows. The non-dimensional velocity profiles in the fully-developed-flow region far from the vertex do not coincide with the similar profile of the two-dimensional wall-jet. Also, the trends in the decay of the maximum velocities and in the growth of the half width of the present wall-jet are different from those of the two-dimensional wall-jet. The local skin friction coefficient is estimated and compared with the empirical formula proposed by several authors. 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The variations in static pressure in the streamwise and transverse directions are large near the wedge vertex, and should not be neglected in the calculation of these flows. The non-dimensional velocity profiles in the fully-developed-flow region far from the vertex do not coincide with the similar profile of the two-dimensional wall-jet. Also, the trends in the decay of the maximum velocities and in the growth of the half width of the present wall-jet are different from those of the two-dimensional wall-jet. The local skin friction coefficient is estimated and compared with the empirical formula proposed by several authors. The logarithmic velocity distribution is examined using the estimated skin friction coefficients.</abstract><pub>The Japan Society of Mechanical Engineers</pub><doi>10.1299/jsme1958.29.1726</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0021-3764 |
| ispartof | Bulletin of JSME, 1986, Vol.29(252), pp.1726-1731 |
| issn | 0021-3764 1881-1426 |
| language | eng |
| recordid | cdi_crossref_primary_10_1299_jsme1958_29_1726 |
| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese |
| subjects | Fluid Mechanics Impinging Jet Logarithmic Law Skin Friction Turbulent Wall-Jet Wedge Flow |
| title | Experiments on a Two-dimensional Impinging Jets on a Wedge : Mean Flow Properties |
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