| 000 | 03403nlm2a2200445 4500 | ||
|---|---|---|---|
| 001 | 649184 | ||
| 005 | 20231030040902.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\14345 | ||
| 035 | _aRU\TPU\network\14136 | ||
| 090 | _a649184 | ||
| 100 | _a20160623a2015 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 105 | _ay z 100zy | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aCavitation on a scaled-down model of a Francis turbine guide vane: high-speed imaging and PIV measurements _fK. S. Pervunin [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 8 tit.] | ||
| 330 | _aCavitation on two symmetric foils, a NACA0015 hydrofoil and a scaled-down model of a Francis turbine guide vane (GV), was investigated by high-speed visualization and PIV. At small attack angles the differences between the profiles of the mean and fluctuating velocities for both hydrofoils were shown to be insignificant. However, at the higher angle of incidence, flow separation from the GV surface was discovered for quasi-steady regimes including cavitation-free and cavitation inception cases. The flow separation leads to the appearance of a second maximum in velocity fluctuations distributions downstream far from the GV surface. When the transition to unsteady regimes occurred, the velocity distributions became quite similar for both foils. Additionally, for the GV an unsteady regime characterized by asymmetric spanwise variations of the sheet cavity length along with alternating periodic detachments of clouds between the sidewalls of the test channel was for the first time visualized. This asymmetric behaviour is very likely to be governed by the cross instability that was recently described by Decaix and Goncalvès [8]. Moreover, it was concluded that the existence of the cross instability is independent on the test body shape and its aspect ratio. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | 0 |
_0(RuTPU)RU\TPU\network\3526 _tJournal of Physics: Conference Series |
|
| 463 |
_tVol. 656, conference 1 : 9th International Symposium on Cavitation (CAV2015) _o6–10 December 2015, Lausanne, Switzerland _v[4 p.] _d2015 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aкавитация | |
| 610 | 1 | _aтурбины | |
| 610 | 1 | _aвысокоскоростная визуализация | |
| 610 | 1 | _aPIV | |
| 701 | 1 |
_aPervunin _bK. S. |
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| 701 | 1 |
_aTimoshevsky _bM. V. |
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| 701 | 1 |
_aChurkin _bS. A. |
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| 701 | 1 |
_aKravtsova _bA. Yu. |
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| 701 | 1 |
_aMarkovich _bD. M. _cspecialist in the field of energy _cProfessor of Tomsk Polytechnic University, doctor of physical and mathematical Sciences _f1962- _gDmitry Markovich _2stltpush _3(RuTPU)RU\TPU\pers\35068 |
|
| 701 | 1 |
_aKhanjyalich _bK. |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет (ТПУ) _bЭнергетический институт (ЭНИН) _bКафедра парогенераторостроения и парогенераторных установок (ПГС и ПГУ) _h120 _2stltpush _3(RuTPU)RU\TPU\col\18681 |
| 801 | 2 |
_aRU _b63413507 _c20161207 _gRCR |
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| 856 | 4 | _uhttp://dx.doi.org/10.1088/1742-6596/656/1/012166 | |
| 942 | _cCF | ||