Juncture fillets for vortex flow control on double-delta wings undergoing sideslip

Experimental study of vortex flow control on double-delta wings using fillets

Journal of Aircraft ◽

10.2514/3.47010 ◽

1996 ◽

Vol 33 (4) ◽

pp. 743-751 ◽

Cited By ~ 15

Author(s):

Sheshagiri K. Hebbar ◽

Max F. Platzer ◽

Abdullah M. Alkhozam

Keyword(s):

Experimental Study ◽

Flow Control ◽

Vortex Flow ◽

Delta Wings

Download Full-text

Vortex Flow Controllers in Sanitary Engineering

Journal of Dynamic Systems Measurement and Control ◽

10.1115/1.3143726 ◽

1984 ◽

Vol 106 (2) ◽

pp. 129-133 ◽

Cited By ~ 1

Author(s):

H. Brombach

Keyword(s):

Flow Control ◽

Flow Pattern ◽

Flow Resistance ◽

Vortex Flow ◽

Vortex Chamber ◽

Control Problems ◽

Inlet Port ◽

Input Pressure ◽

Conical Vortex ◽

Moving Parts

Flow control problems in combined sewerage systems can be solved with the aid of a new variation of the vortex amplifier. This valve has no moving parts, and comes under the category of pure fluidics; it has a conical vortex chamber and a single inlet port. Depending on the level of water in the vortex chamber the flow pattern may be either axially symmetrical or axially asymmetrical. This effect enables the device to alter its flow resistance in response to the input pressure. Several hundred of this type of the flow controller are already in operation. An example of their application is described below.

Download Full-text

A numerical investigation of vortex flow control through small geometry modifications at the strake/wing junction of a cropped double-delta wing

10.2514/6.1992-411 ◽

1992 ◽

Cited By ~ 4

Author(s):

STEVEN KERN

Keyword(s):

Flow Control ◽

Numerical Investigation ◽

Vortex Flow ◽

Delta Wing ◽

Double Delta Wing

Download Full-text

Passive Wingtip Vortex Control by Using Tip-Mounted Half Delta Wings in Ground Effect

Journal of Fluids Engineering ◽

10.1115/1.4044669 ◽

2019 ◽

Vol 142 (2) ◽

Author(s):

Anan Lu ◽

Tim Lee

Keyword(s):

Vortex Flow ◽

Ground Effect ◽

Tip Vortex ◽

Secondary Vortex ◽

Flow Properties ◽

Delta Wings ◽

Vortex Control ◽

Physical Mechanisms ◽

Induced Drag ◽

Wingtip Vortex

Abstract The ground effect on the wingtip vortex generated by a rectangular semiwing equipped with tip-mounted regular and reverse half delta wings was investigated experimentally. The passive tip vortex control always led to a reduced lift-induced drag as the ground was approached. In close ground proximity, the presence of the corotating ground vortex (GV) added vorticity to the tip vortex while the counter-rotating secondary vortex (SV) negated its vorticity level. The interaction of the GV and SV with the tip vortex and their impact on the lift-induced drag were discussed. Physical mechanisms responsible for the change in the vortex flow properties in ground effect were also provided.

Download Full-text