Numerical and experimental investigation of three-dimensional
cavitating flow around the straight NACA2412 hydrofoil

J 2016

Numerical and experimental investigation of three-dimensional cavitating flow around the straight NACA2412 hydrofoil

SEDLÁŘ, Milan, Bin JI, Tomáš KRÁTKÝ, Tomáš REBOK, Rostislav HUZLÍK et. al.

Basic information

Original name

Numerical and experimental investigation of three-dimensional cavitating flow around the straight NACA2412 hydrofoil

Authors

SEDLÁŘ, Milan (203 Czech Republic), Bin JI (156 China), Tomáš KRÁTKÝ (203 Czech Republic), Tomáš REBOK (203 Czech Republic, belonging to the institution) and Rostislav HUZLÍK (203 Czech Republic)

Edition

Ocean Engineering, Elsevier Ltd. 2016, 0029-8018

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10305 Fluids and plasma physics

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 1.894

RIV identification code

RIV/00216224:14610/16:00090480

Organization unit

Institute of Computer Science

DOI

http://dx.doi.org/10.1016/j.oceaneng.2016.07.030

UT WoS

000382338600029

Keywords in English

Cavitation; Vortex structures; 3D effects; LES; DES; SAS-SST

Abstract

V originále

This work deals with the experimental and numerical investigation of unsteady cavitating flow around the straight NACA2412 hydrofoil with the span/chord ratio of 1.25 in the cavitation tunnel. The numerical simulations play the main part in this study; nevertheless the experimental work is also presented as an important background for validation of the results. A comprehensive CFD analysis has been carried out with three advanced turbulence models including the SAS-SST, LES-WALE and DES models. The main attention is focused on the prediction of interactions between the re-entrant flow and cavitation structures as well as the cavitation excited pressure. The monitored pressure fluctuations during the cavity cycles as well as the intervals between the dominant pressure pulses are discussed in detail. To capture side-wall effects, the whole hydrofoil and tunnel test section have been modelled, without any symmetry or periodic boundary conditions. The numerical simulations show, that the dominant frequencies of the cavity oscillation are best predicted by the SAS-SST turbulence model and the Detached Eddy Simulation. The Large Eddy Simulation has provided the best description of vortical structures in the rear part of the hydrofoil but it underestimates the side-wall effects and overestimates the dominant frequencies of the cavity oscillation.

Links

CZ.1.05/3.2.00/08.0144, interní kód MU

Name: CERIT Scientific Cloud (Acronym: CERIT - SC)

Investor: Ministry of Education, Youth and Sports of the CR, 3.2 Promotion and providing information on R&D results

ED3.2.00/08.0144, research and development project

Name: CERIT Scientific Cloud

LM2015085, research and development project

Name: CERIT Scientific Cloud (Acronym: CERIT-SC)

Investor: Ministry of Education, Youth and Sports of the CR, CERIT Scientific Cloud

Citovat

SEDLÁŘ, Milan, Bin JI, Tomáš KRÁTKÝ, Tomáš REBOK and Rostislav HUZLÍK. Numerical and experimental investigation of three-dimensional cavitating flow around the straight NACA2412 hydrofoil. Ocean Engineering. Elsevier Ltd., 2016, vol. 123, No 123, p. 357-382. ISSN 0029-8018. Available from: https://dx.doi.org/10.1016/j.oceaneng.2016.07.030.

@article{1350801,
   author = {Sedlář, Milan and Ji, Bin and Krátký, Tomáš and Rebok, Tomáš and Huzlík, Rostislav},
   article_number = {123},
   doi = {http://dx.doi.org/10.1016/j.oceaneng.2016.07.030},
   keywords = {Cavitation; Vortex structures; 3D effects; LES; DES; SAS-SST},
   language = {eng},
   issn = {0029-8018},
   journal = {Ocean Engineering},
   title = {Numerical and experimental investigation of three-dimensional cavitating flow around the straight NACA2412 hydrofoil},
   url = {http://www.sciencedirect.com/science/article/pii/S0029801816302785},
   volume = {123},
   year = {2016}
}

TY  - JOUR
ID  - 1350801
AU  - Sedlář, Milan - Ji, Bin - Krátký, Tomáš - Rebok, Tomáš - Huzlík, Rostislav
PY  - 2016
TI  - Numerical and experimental investigation of three-dimensional cavitating flow around the straight NACA2412 hydrofoil
JF  - Ocean Engineering
VL  - 123
IS  - 123
SP  - 357-382
EP  - 357-382
PB  - Elsevier Ltd.
SN  - 00298018
KW  - Cavitation
KW  - Vortex structures
KW  - 3D effects
KW  - LES
KW  - DES
KW  - SAS-SST
UR  - http://www.sciencedirect.com/science/article/pii/S0029801816302785
L2  - http://www.sciencedirect.com/science/article/pii/S0029801816302785
N2  - This work deals with the experimental and numerical investigation of unsteady cavitating flow around the straight NACA2412 hydrofoil with the span/chord ratio of 1.25 in the cavitation tunnel. The numerical simulations play the main part in this study; nevertheless the experimental work is also presented as an important background for validation of the results. A comprehensive CFD analysis has been carried out with three advanced turbulence models including the SAS-SST, LES-WALE and DES models. The main attention is focused on the prediction of interactions between the re-entrant flow and cavitation structures as well as the cavitation excited pressure. The monitored pressure fluctuations during the cavity cycles as well as the intervals between the dominant pressure pulses are discussed in detail. To capture side-wall effects, the whole hydrofoil and tunnel test section have been modelled, without any symmetry or periodic boundary conditions. The numerical simulations show, that the dominant frequencies of the cavity oscillation are best predicted by the SAS-SST turbulence model and the Detached Eddy Simulation. The Large Eddy Simulation has provided the best description of vortical structures in the rear part of the hydrofoil but it underestimates the side-wall effects and overestimates the dominant frequencies of the cavity oscillation.
ER  -

SEDLÁŘ, Milan, Bin JI, Tomáš KRÁTKÝ, Tomáš REBOK and Rostislav HUZLÍK. Numerical and experimental investigation of three-dimensional cavitating flow around the straight NACA2412 hydrofoil. \textit{Ocean Engineering}. Elsevier Ltd., 2016, vol.~123, No~123, p.~357-382. ISSN~0029-8018. Available from: https://dx.doi.org/10.1016/j.oceaneng.2016.07.030.

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