Wake behind a Compound Wing in Ground Effect

Jamei, Saeed; Maimun, Adi; Bilandi, Rasul Niazmand; Azwadi, Nor; Mancini, Simone; Vitiello, Luigi; Carlini, Maria De

doi:10.3390/jmse8030156

Cited by 8 publications

(3 citation statements)

References 32 publications

(33 reference statements)

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“…As shown in [26], the structure of the flow and the correct definition of turbulence are the determining factors when modeling the aerodynamics of a wing near the ground. Methods of modeling turbulent flows, conventionally, can be divided into three groups: approaches based on the use of Reynolds-averaged Navier-Stokes equations (Reynolds Averaged Navier -Stokes -RANS); two classic approaches -direct numerical modeling of turbulence (Direct Numerical Simulation -DNS) and the method of modeling large eddies (Large Eddy Simulation -LES); hybrid approaches that are based on the joint use of RANS and LES approaches for different areas of the flow [27].…”

Section: The Problem Of Mathematical Modelingmentioning

confidence: 99%

A review of the problem of modeling the aerodynamics of small-sized ekranoplanes

Sokhatskyi,

Dreus,

Radovskyi

et al. 2024

MATEC Web Conf.

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A characteristic trend in the development of modern transport systems is the widespread introduction of unmanned technologies. One of the new vehicles that are promising for use as high-speed unmanned aerial vehicles are ekranoplanes (WIG crafts). Such devices use the principle of dynamic support above the surface. Therefore, the processes of aerodynamics are decisive for their reliable and effective operation. The presented work considers the problem of modeling aerodynamic processes during the movement of the vehicle near the surface. In contrast to studies in an unrestricted flow, the presence of a surface leads to a number of features that determine the need for special approaches to both physical and mathematical experiments. It is established that each of the methods can ensure the similarity of the modeled processes to the real ones within the defining limits. A brief review of methods of numerical modeling of ekranoplan aerodynamics is presented. The approaches, which based on the Navier-Stokes equations and method of discrete singularities, are considered. There are examples of calculation of the processes of wing aerodynamics herein. The advantages and disadvantages of viscous and inviscid models for research are shown.

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Section: The Problem Of Mathematical Modelingmentioning

confidence: 99%

A review of the problem of modeling the aerodynamics of small-sized ekranoplanes

Sokhatskyi,

Dreus,

Radovskyi

et al. 2024

MATEC Web Conf.

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show abstract

“…The use of an airfoil is also one of the hull shape variations in recent design development, including being operated on a Wing in Ground ships [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Design of A Solar Panel Diving Boat to Support Diving and Research Activities on The Small Islands

Putra¹,

Prayetno²,

Nugraha³

et al. 2023

Proceedings of the 1st International Conference on Sustainable Engineering Development and Technological Innovation, ICSEDTI 20

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This study aims to design a solar panel boat with the most valuable functions and roles for diving and research activities. Furthermore, studies on its design and construction are often simulated in several stages, starting from data collection on the boat instrument, followed by an analysis of the model. The payload was then calculated using the long-term forecasting method by predicting the load of solar panels and primary equipment placed in the dive boat. The estimated speed and battery storage capacity were also assessed to obtain the principal dimensions. The design of this tourist diving boat used twin hulls (catamarans) to increase the ship's water draft. The deck of the vessel incorporated transparent glass, and it was equipped with safety equipment that allows passengers to observe coral reefs. The vessel has a height, width, and length of 0.665, 2, and 7 meters, respectively. It was also outfitted with a 20-horsepower electric engine capable of attaining a speed of 9 knots, which is suitable for sailing to ecotourism regions. Furthermore, a batteryoperated device supplemented using a solar panel with a peak power output of 2,960 watts was installed.

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“…Two different wings were used for experimental simulations: a single-element wing, the LS(1)-0413 MOD with slight modifications, and a two-element wing. Both wings were with an endplate and, therefore, widely used as a comparative case for both numerical and experimental simulations [19][20][21][22][23][24][25]. Zerihan investigated the impacts of the ground effect and the angle of attack of the wing on the aerodynamic performance and the wake.…”

Section: Introductionmentioning

confidence: 99%

Computational Aerodynamics Analysis of Non-Symmetric Multi-Element Wing in Ground Effect with Humpback Whale Flipper Tubercles

Arrondeau

Rana

2020

Fluids

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The humpback whale flipper tubercles have been shown to improve the aerodynamic coefficients of a wing, especially in stall conditions, where the flow is almost fully detached. In this work, these tubercles were implemented on a F1 front-wing geometry, very close to a Tyrrell wing. Numerical simulations were carried out employing the k−ω SST turbulence model and the overall effects of the tubercles on the flow behavior were analyzed. The optimal amplitude and number of tubercles was determined in this study for this front wing where an improvement of 22.6% and 9.4% is achieved, respectively, on the lift and the L/D ratio. On the main element, the stall was delayed by 167.7%. On the flap, the flow is either fully detached, in the large circulation zone, or fully attached. Overall, in stall conditions, tubercles improve the downforce generation but at the cost of increased drag. Furthermore, as the tubercles are case-dependent, an optimal configuration for tubercles implementation also exists for any geometry.

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Wake behind a Compound Wing in Ground Effect

Cited by 8 publications

References 32 publications

A review of the problem of modeling the aerodynamics of small-sized ekranoplanes

A review of the problem of modeling the aerodynamics of small-sized ekranoplanes

Design of A Solar Panel Diving Boat to Support Diving and Research Activities on The Small Islands

Computational Aerodynamics Analysis of Non-Symmetric Multi-Element Wing in Ground Effect with Humpback Whale Flipper Tubercles

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