Investigations of Lift and Drag Performances on Neo-Ptero Micro UAV Models

Ismail, N. I.; Basri, M. Hisyam; Sharudin, Hazim; Ali, Zaileha Md; Shariffuddin, A. A.; Kamel, N.I.

doi:10.37934/arfmts.84.2.5062

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…The hydrofoil's surface was all that the panel analysis method could analyse, but once the surface velocity was known, the potential flow theory could be used to calculate the flow velocity and direction, as shown in Figure 12. Each grid point is evaluated after the surface velocity distribution has been solved for [16,17].…”

Section: Rudder and Wing Patternmentioning

confidence: 99%

Resistance Evaluation for the Submerged Glider System using CFD Modelling

Ahmed

2023

ARASET

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The underwater gliders are type of autonomous underwater vehicles, which are in their way to be used instead of traditional propellers or thrusters. They are used as submerged gliders or as a part connected to floating hull which is propelled by it. The underwater system depends on different number of hydrofoils (underwater wings) that allow it to glide forward while descending through the water. This paper concentrates on three critical design details: profile of the wings, multiple flapping wings and their angle of attack (AoA), and a method is focused on the mesh generation to predict calm water resistance for the submerged glider system while considering the profile and the maximum rotating angle of the wings and rudder. Flow around submerged wing system model has been calculated at different Froude numbers ranging from 0.1 to 0.6. The grid generator is established for meshing the computational domain with structured hexahedral and unstructured tetrahedral grid. Simulations are carried out using commercial CFD code ANSYS Fluent 19 to calculate calm water resistance of the submerged glider system with different number of hydrofoils. The results conclude that the cambered plate was chosen to design the rudder at 19 o AOA and the hydrofoil NACA0012 can be practically applied in the design of the wings at 15 o AOA from the resistance point of view. In addition, this investigation introduces a new application for CFD calculations in estimating the resistance of the submerged glider system.

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Section: Rudder and Wing Patternmentioning

confidence: 99%

Resistance Evaluation for the Submerged Glider System using CFD Modelling

Ahmed

2023

ARASET

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“…As for airflow and aerodynamics simulation, three different CFD techniques are employed, Reynolds-Averaged Navier-Stokes (RANS), unsteady RANS (URANS), and Large Eddy Simulation (LES) [30][31][32][33][34][35]. The Reynolds-Averaged Navier-Stokes (RANS) solves time-averaged steady-state Navier-Stokes equations while the unsteady RANS numerically solves unsteady Navier-Stokes equation [36][37][38]. On the other hand, the Large Eddy Simulation (LES) solves space, position, area, and size for averaged Navier-Stokes equations spatially.…”

Section: Computational Fluid Dynamics (Cfd)mentioning

confidence: 99%

A Review of Aerodynamics Influence on Various Car Model Geometry through CFD Techniques

Kamal

Ishak

Darlis

et al. 2021

ARFMTS

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The aerodynamic characteristics of a vehicle play a vital role in steering stability, performance, comfort, and safety of a car. The fuel efficiency of a vehicle is determined by the performance of the internal combustion engine and the aerodynamic design of the body. One of the most important aspects of automobile design is aerodynamic styling. A vehicle with low drag resistance provides advantages in terms of cost and efficiency. This article will review design characteristics and implementation of various specific reference models on drag issues using Computational Fluid Dynamics (CFD) techniques. The benefits and limitations of these models are analysed, and the validity of results in developing guidelines to improve the performance and stability of cars are described. This review paper covers significant studies that utilise the CFD model and simulation on a simplified vehicle model using various turbulence models to generate drag coefficient. Characteristics and impacts of various vehicle design models with and without external factors such as side mirrors and door handles are also discussed. Results obtained from the research focuses on the physics flow structures such as static pressure contours, are presented for the three types of car model geometry. The simplified generic models are more efficient and advocated to apply compared to the specific model geometry based on the result acquired by the latest studies. Simplified generic models are preferred due to their cost-effectiveness, procurement of optimum time, and better simulation effects. Moreover, the study also demonstrates the importance of having a car with suitable turbulence models that are appropriate to be applied for simulations in terms of its applicability, time effectiveness, and cost.

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Numerical Study on Thin Cambered-Plate Airfoil Profiles Operating in Micro Unmanned Aerial Vehicles

Vuong,

Nguyen,

2024

Preprint

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Investigations of Lift and Drag Performances on Neo-Ptero Micro UAV Models

Cited by 3 publications

References 14 publications

Resistance Evaluation for the Submerged Glider System using CFD Modelling

Resistance Evaluation for the Submerged Glider System using CFD Modelling

A Review of Aerodynamics Influence on Various Car Model Geometry through CFD Techniques

Numerical Study on Thin Cambered-Plate Airfoil Profiles Operating in Micro Unmanned Aerial Vehicles

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