Experimental and numerical investigations of the flow around three different wall-mounted cylinder geometries of finite length

A review of flow-induced noise from finite wall-mounted cylinders

“…The base and tip vortices interact with the midspan von Kármán vortex system to partially or completely alter the flow field around the body. The influence of the horseshoe vortex on the near wake structure has been found to be considerably milder then the influence of the other vortex systems (Sau et al, 2003;Bourgeois et al, 2011;Uffinger et al, 2013) and is generally overlooked in near wake studies. For papers relating to the dynamics of the horseshoe vortex system around cylinders, the reader is referred to the work of Baker (1980), Devenport and Simpson (1990), Ballio et al (1998) and Simpson (2001).…”

“…Flow around the cylinder sides enters into a regular alternating von Kármán vortex street. The pressure difference between the lee side of the FWMC and the oncoming free stream induces downwash (downward motion of the separated shear layer Baker (1980) 1980Farivar (1981 1981 Ayoub and Karamcheti (1982) 1982 Sakamoto and Arie (1983) 1983 Kawamura et al (1984) 1984 Sakamoto and Oiwake (1984) 1984 Budair et al (1991) 1991 Baban and So (1991) 1991 Okamoto and Sunabashiri (1992) 1992 Agui and Andreopoulos (1992) 1992 Szepessy and Bearman (1992) 1992 West (1993a, 1993b) 1993 Fox and Apelt (1993) 1993 Tanaka and Murata (1999) 1999 Kitagawa et al (1999) 1999 Park and Lee (2000) 2000 Park and Lee (2002) 2002 Roh and Park (2003) 2003 Leder (2003) 2003 Sumner et al (2004) 2004 Wang et al (2004) 2004 Pattenden et al (2005) 2005 Wang et al (2006) 2006 Adaramola et al (2006) 2006 Hain et al (2008) 2008 Becker et al (2008) 2008 Wang and Zhou (2009) 2009 Bourgeois et al (2011) 2011Hajimirzaie et al (2012 2012 Iungo et al (2012) 2012 Sattari et al (2012) 2012 Moreau and Doolan (2013) 2013 Hosseini et al (2013) 2013 Rostamy et al (2013) 2013 Uffinger et al (2013) 2013 a Sq. is the square cross section.…”

“…Krajnovic, 2011) have been included judiciously. For additional numerical studies on FWMCs, the reader is referred to Afgan et al (2007), Palau-Salvador et al (2010), Saha (2013) and Uffinger et al (2013).…”

Galloping of forward and backward inclined slender square cylinders

“…For a 3D cylinder, tip vortices are shed from the free end and base vortices are generated near the base of the cylinder. Only the middle span, which locates far away from the free end and the base, preserves the well-known Von Karman vortices (Uffinger et al, 2013;Wang and Zhou, 2009). In other words, the main form of vortex shedding behind a 2D cylinder is mainly observed in the flow around the middle span of a 3D cylinder.…”

Large-eddy simulation of shallow turbulent wakes behind a conical island

“…10 For a cuboid whose upstream and leeward profiles were modified by adding a wedge and elliptical profiles, respectively, LES and experimental data have shown that the upstream face significantly impacts the attachment of overlying flow over the free-end and the flow structure of the magnitude of the downwash flow. 20 Furthermore, it was found that the interaction between the tip and lateral vortices was the greatest for the square cylinder without an upstream wedge profile or a leeside elliptical profile, resulting in a strong detachment of flow over the top of the body. The presence of the elliptical afterbody and the interaction between the tip vortices and side vortices weakened the downwash flow.…”