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International Journal of Fluid Mechanics Research

Publicou 6 edições por ano

ISSN Imprimir: 2152-5102

ISSN On-line: 2152-5110

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STUDY OF MESH INDEPENDENCE ON THE COMPUTATIONAL MODEL OF THE ROLL-UP VORTEX PHENOMENON ON FIGHTER AND DELTA WING MODELS

Volume 46, Edição 5, 2019, pp. 427-439
DOI: 10.1615/InterJFluidMechRes.2018025530
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RESUMO

A good visualization technique is needed to analyze the flow around the aircraft to see how much innovation can be made to improve the performance of a fighter. The use of water tunnel experiments is one of the solutions to getting a detailed visualization of the flow patterns that occur. However, there is some other information that is difficult to obtain qualitatively, so it requires computational fluid dynamics (CFD) techniques to extract some detailed data mainly related to the airflow around the fighter, such as the occurrence of roll-up vortex phenomena. One of the most important things to note on the use of CFD methods is the need for studies concerning the technique of meshing arrangements and the selection of constitutive equations used to ensure the results of the CFD as accurately as possible. This study will examine the accuracy of using the optimum number of cells on the mesh in obtaining convergent values of lift coefficients (Cl) on the delta wing and the fighter compared to the experimental test of a water tunnel. The results show that the coefficient of lift was converged on the mesh of more than 5 million cells with the error rate below 1%, indicating the optimum value of the mesh.

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CITADO POR
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  2. Sutrisno Sutrisno, Deendarlianto Deendarlianto, Agung Rohmat Tri, Bekti Wibowo Setyawan, Iswahyudi Sigit, Vortex Dynamics Analysis of Straight-Body-Type-Fuselage Fighter Using CFD Simulation, Journal of Aerospace Technology and Management, 12, 2020. Crossref

  3. Wibowo Setyawan Bekti, Sutrisno , Rohmat Tri Agung, Siswantoro Soeadgihardo, Fernando David, Naufal Wega F., Effect of velocity on the formation of rolled-up vortex on the delta wing using a water tunnel technique, THERMOFLUID X: 10th International Conference on Thermofluids 2019, 2248, 2020. Crossref

  4. Wibowo Setyawan Bekti, Basuki Budi, Sutrisno , Rohmat Tri Agung, Siswantoro Soeadgihardo, Nugroho Febryanto, Ginting Petricius, Anwar Zainuri, Vortex Dynamics Study and Flow Visualization on Aircraft Model with Different Canard Configurations, Fluids, 6, 4, 2021. Crossref

  5. Nugroho Gesang, Zuliardiansyah Galih, Rasyiddin Azhar Aulia, Performance Analysis of Empennage Configurations on a Surveillance and Monitoring Mission of a VTOL-Plane UAV Using a Computational Fluid Dynamics Simulation, Aerospace, 9, 4, 2022. Crossref

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