Abonnement à la biblothèque: Guest
Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections
International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.9

ISSN Imprimer: 2152-5102
ISSN En ligne: 2152-5110

Volumes:
Volume 47, 2020 Volume 46, 2019 Volume 45, 2018 Volume 44, 2017 Volume 43, 2016 Volume 42, 2015 Volume 41, 2014 Volume 40, 2013 Volume 39, 2012 Volume 38, 2011 Volume 37, 2010 Volume 36, 2009 Volume 35, 2008 Volume 34, 2007 Volume 33, 2006 Volume 32, 2005 Volume 31, 2004 Volume 30, 2003 Volume 29, 2002 Volume 28, 2001 Volume 27, 2000 Volume 26, 1999 Volume 25, 1998 Volume 24, 1997 Volume 23, 1996 Volume 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v33.i3.40
pages 255-264

Comparison of Slender Axisymmetric Body Drag Under Unseparated and Supercavitational Flow Regimes

O. A. Buraga
Institute of Hydromechanics of National Academy of Sciences of Ukraine, Kyiv, Ukraine
Igor G. Nesteruk
Institute of Hydromechanics of National Academy of Sciences of Ukraine 8/4, Zhelyabov St., 03680, Kyiv-180, MSP, Ukraine
Yu. N. Savchenko
Institute of Hydromechanics of National Academy of Sciences of Ukraine, Kyiv, Ukraine

RÉSUMÉ

The volumetric drag coefficients of slender cones are calculated for supercavitational flow patterns. The cavity is assumed as a part of useful volume and is determined with the first approximation equation. The analytical formulae for the volumetric coefficients of frictional drag and the pressure distribution are presented. The extreme cases of long and short cavities are considered. The comparison of the results with the drag coefficients of slender axisymmetric bodies in an unseparated flow shows that at cavitation numbers less than 0.001 the supercavitational regime of the flow offers few advantages, however for large values of the cavitation number the difference in drag may become small. A case of short cavities is unacceptable for drag minimization.


Articles with similar content:

Numerical Investigation of Hydro-Magnetic Flow of Air in a Lid Driven Cavity for an Optimum Magnetic Situation
International Journal of Fluid Mechanics Research, Vol.41, 2014, issue 5
Amir Javad Ahrar, Mohammad Hassan Djavareshkian
ENTRAINMENT BY CONVENTIONAL EFFERVESCENT SPRAYS
Atomization and Sprays, Vol.13, 2003, issue 5&6
S. G. Bush
A Review of Magnetically Actuated Milli/Micro-Scale Robots Locomotion and Features
Critical Reviews™ in Biomedical Engineering, Vol.47, 2019, issue 5
Amanda de Oliveira Barros, James Yang
MOMENTUM ANALYSES FOR DETERMINATION OF DROP SIZE AND DISTRIBUTIONS DURING SPRAY ATOMIZATION
Atomization and Sprays, Vol.30, 2020, issue 2
Miroslav Raudensky, Hana Bellerova, T.-W. Lee, J. E. Park, Milan Hnizdl
DRAG ON A REINER−RIVLIN LIQUID SPHERE EMBEDDED IN A POROUS REGION PLACED IN A MICROPOLAR FLUID
Journal of Porous Media, Vol.23, 2020, issue 6
Abhishek Kumar Singh, R. Selvi, Pankaj Shukla