Numerical simulation of tip vortices of wings in subsonic and transonic flows

Srinivasan, G. R.; Mccroskey, W. J.; Baeder, James D.; Edwards, Thomas A.

doi:10.2514/3.10022

Cited by 33 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The phenomenon of wingtip vortices has captivated researchers for many decades in their attempts to minimize their harmful effects. Researchers have made extensive experimental and theoretical studies [29][30][31][32][33][34][35] as well as numerical investigations [29,[35][36][37][38][39][40][41] to understand the characteristics of wing tip vortices. To mitigate the adverse effect of wingtip vorticities, many wingtip devices have been proposed over the years with varying degrees of success.…”

Section: Control Of Wingtip Vorticesmentioning

confidence: 99%

Developments in Wingtip Vorticity Mitigation Techniques: A Comprehensive Review

Gharbia,

Derakhshandeh,

Alam

et al. 2023

Aerospace

View full text Add to dashboard Cite

Wingtip vortices generated from aircraft wingtips, as a result of the pressure differential at the wingtip, constitute a major component of the total drag force, especially during take-off and landing. In addition to the drag issue, these vortices also pose a significant hazard to smaller aircraft flying in the wake of the larger airplane. The wingtip vortices play a crucial role in aerodynamic efficiency, fuel consumption, flight range, and aircraft stability. This paper presents an overview of the volume of work conducted over the past six decades to encapsulate the phenomena and the techniques devised to mitigate the wingtip vortices. It is shown that the aerodynamic efficiency of the examined wingtip devices ranges from 1% to 15%, depending on the type of wingtips and the flight conditions. Furthermore, it is pointed out that the decrease in fuel consumption ranges from 3.4% to 10%, and the reduction in the induced drag ranges from 5% to 20%.

show abstract

Section: Control Of Wingtip Vorticesmentioning

confidence: 99%

Developments in Wingtip Vorticity Mitigation Techniques: A Comprehensive Review

Gharbia,

Derakhshandeh,

Alam

et al. 2023

Aerospace

View full text Add to dashboard Cite

show abstract

“…Vortical structures appear in multi-material/multi-phase flows that arise from atomization and spray phenomena [36], bubbly flows [30,37,38], or the shedding of vortices from flow past objects [10,59]. Some specialized computational techniques for improving the simulation of the dynamics of vortical structures in fluid flow include turbulence modeling techniques [30], vortex confinement approaches [60], the vorticity stream-function formulation [39], approaches that directly solve the vorticity transport equation [11], vortex particle method [63], vortex particle mesh method [12], or adaptive mesh refinement [28].…”

Section: Introductionmentioning

confidence: 99%

A Hierarchical Space-Time Spectral Element and Moment-of-Fluid Method for Improved Capturing of Vortical Structures in Incompressible Multi-phase/Multi-material Flows

et al. 2019

View full text Add to dashboard Cite

A novel block structured adaptive space-time spectral element and moment-of-fluid method is described for computing solutions to incompressible multi-phase/multi-material flows. The new method implements a space-time spectrally accurate method in the bulk regions of a multi-phase/multi-material flow and implements the cell integrated semi-Lagrangian moment-of-fluid method in the vicinity of mixed material computational cells. In the new method, the space-time order can be prescribed to be 2 ≤ p (x) ≤ 16 (space) and 2 ≤ p (t) ≤ 16 (time) respectively. represents the adaptive mesh refinement level. Regardless of the space-time order, only one ghost layer of cells is communicated between neighboring grid patches that are on different compute nodes or different adaptive levels . The new method is first tested on incompressible vortical flow benchmark tests, then the new method is tested on the following incompressible multi-phase/multi-material problems: (i) vortex shedding past a tilted cone and (ii) atomization and spray of a liquid jet in a gas cross-flow.

show abstract