Complex Flow for Wing-in-ground Effect Craft with Power Augmented Ram Engine in Cruise

Yang, Zhigang; Yang, Wei

doi:10.1016/s1000-9361(09)60180-1

Cited by 29 publications

(5 citation statements)

References 5 publications

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“…The configuration and nozzle are modeled as walls. The applied boundary conditions on the exit nozzle of the propulsion system are considered as outflow and inflow (Zhigang et al, 2010;, as in Figure 1. Three methods have been used to study the aerodynamics of ground effect: image method (Coulliette et al, 1996;Hiemcke et al, 1997), stationary ground (Zerihan et al, 2000;Hsiun et al, 1996) and moving ground (Tahani et al, 2014;Moon et al, 2005).…”

Section: Governing Equationmentioning

confidence: 99%

“…In other studies, Zhigang et al (2010Zhigang et al ( , 2011 attained a new scheme for installation of the nacelle and the engine for poweraugmented flow which creates propulsion force and PAR effect at the same time. It has been concluded that the optimal PAR effect during take-off and landing is affected by different parameters which require particular design and arrangement for the nacelle.…”

Section: Introductionmentioning

confidence: 99%

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Aerodynamic ground effects on DLRF6 vehicle

Tahani

Masdari

Bargestan

2021

AEAT

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Purpose The overall performance of an aerial vehicle strongly depends on the specifics of the propulsion system and its position relative to the other components. The purpose of paper is this factor can be characterized by changing several contributing parameters, such as distance from the ground, fuselage and wing as well as the nacelle outlet velocity and analyzing the aerodynamic performance. Design/methodology/approach Navier–Stokes equations are discretized in space using finite volume method. A KW-SST model is implemented to model the turbulence. The flow is assumed steady, single-phase, viscous, Newtonian and compressible. Accordingly, after validation and verification against experimental and numerical results of DLRF6 configuration, the location of the propulsion system relative to configuration body is examined. Findings At the nacelle outlet velocity of V/Vinf = 4, the optimal location identified in this study delivers 16% larger lift to drag ratio compared to the baseline configuration. Practical implications Altering the position of the propulsion system along the longitudinal direction does not have a noticeable effect on the vehicle performance. Originality/value Aerial vehicles including wing-in-ground effect vehicles require thrust to fly. Generating this necessary thrust for motion and acceleration is thoroughly affected by the vehicle aerodynamics. There is a lack of rigorous understanding of such topics owing to the immaturity of science in this area. Complexity and diversity of performance variables for a numerical solution and finding a logical connection between these parameters are among the related challenges.

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Section: Governing Equationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Aerodynamic ground effects on DLRF6 vehicle

Tahani

Masdari

Bargestan

2021

AEAT

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“…There is an opinion that the small aspect ratio is sufficient for WIG because the L/D ratio is high enough just due to the ground effect. Additional reasons speaking for small AR are the possibility to perform sharp turning maneuvers at big roll angles without water surface contact and increase of the efficiency of the power augmentation regime (PAR) (the most recent study, see, for instance, [1]). However, the moderate L/D ratio attained for the existing craft motivated designers to come back to the well-tried recipe to improve the L/D ratio by increase of AR.…”

Section: Introductionmentioning

confidence: 99%

On Unsteady Effects in WIG Craft Aerodynamics

Kornev

2019

International Journal of Aerospace Engineering

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The paper presents the analysis of unsteady forces and their influence on the aerodynamics and motion of a wing-in-ground (WIG) effect craft. Two-dimensional and three-dimensional aerodynamic models based on the potential flow are coupled with time domain simulations in the longitudinal plane. A special attention is paid to the explanation of the dynamic ground effect on both the sink and pitching motions. The influence of unsteady and quasi-steady forces on the dynamic ground effects and the craft motion is analyzed for different heights of flight.

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“…Park et al [6] had done an analysis of flow characteristic in WIG vehicle with direct under pressurization device to analyze aerodynamic characteristic and static height stability. Y. Zhigang and Y. Wei [7] had done a research regarding WIG that has used Power Augmented Ram Engine for cruising and studied the flow and also its aerodynamic characteristic. A complex mathematical model was developed by Benedic et al [8] which capable in modeling the aerodynamic of a WIG while N. Kornev [9] had described a mathematical modeling of WIG in motion in planing, take-off, transition to flight and also flight.…”

Section: Introductionmentioning

confidence: 99%

Comparison of numerical simulation with experimental result for small scale one seater wing in ground effect (WIG) craft

Baharun

Maimun

Ahmed

et al. 2015

AIP Conference Proceedings

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In this paper, three dimensional data and behavior of incompressible and steady air flow around a small scale Wing in Ground Effect Craft (WIG) were investigated and studied numerically then compared to the experimental result and also published data. This computational simulation (CFD) adopted two turbulence models, which were k-ϵ and k-ω in order to determine which model produces minimum difference to the experimental result of the small scale WIG tested in wind tunnel. Unstructured mesh was used in the simulation and data of drag coefficient (Cd) and lift coefficient (Cl) were obtained with angle of attack (AoA) of the WIG model as the parameter. Ansys ICEM was used for the meshing process while Ansys Fluent was used for solution. Aerodynamic forces, Cl, Cd and Cl/Cd along with fluid flow pattern of the small scale WIG craft was shown and discussed.

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Complex Flow for Wing-in-ground Effect Craft with Power Augmented Ram Engine in Cruise

Cited by 29 publications

References 5 publications

Aerodynamic ground effects on DLRF6 vehicle

Aerodynamic ground effects on DLRF6 vehicle

On Unsteady Effects in WIG Craft Aerodynamics

Comparison of numerical simulation with experimental result for small scale one seater wing in ground effect (WIG) craft

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