NUMERICAL SIMULATION OF HYPERSONIC FLUID-STRUCTURE INTERACTION ON CANTILEVER PLATE WITH OSCILLATING SHOCK IMPINGEMENT

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dc.contributor.advisorBhattarai, Sudip
dc.contributor.authorPaudel, Prabin
dc.contributor.authorShahi, Sanskar Chandra
dc.contributor.authorPandey, Sarthak
dc.contributor.authorKharel, Sashakta
dc.date.accessioned2024-08-13T06:45:41Z
dc.date.available2024-08-13T06:45:41Z
dc.date.issued2024-03
dc.descriptionThe power spectra of peak pressure evolution at the cantilever plate show a dominant spectral peak at 42 Hz and a second peak at 85 Hz. The trailing edge displacement obtained on the first cycle was 3.15 mm from viscous simulations and 3.01 mm from inviscid simulations, with an error of 1.86 % and 6.2 %, respectively. The PSD of trailing edge displacement via LFM shows the spectral peak at 42 Hz and 92.7 Hz (an error of 3%).
dc.description.abstractWhen an entity surpasses the velocity of sound, it undergoes a process where it compresses the air molecules preceding it, resulting in the formation of a region characterized by heightened pressure called a shock wave. When this shock wave encounters a physical framework, the framework becomes exposed to a load of pressure, potentially leading to structural deformation. These scenarios, wherein the interaction between a fluid medium and structures is involved, are effectively tackled through the discipline of fluid-structure interaction (FSI). In the case of hypersonic vehicles, shock waves impact the structures of control surfaces, thereby instigating fluid-structure interaction within said structures. The scope of this study is to carry out a numerical simulation of Hypersonic Fluid-Structure Interaction on a Cantilever plate with oscillating shock impingement location using the UNSW Canberra’s HyMAX benchmark test case. The numerical simulation is carried out in two approaches i.e. Low Fidelity Modeling (LFM) and High Fidelity Modeling (HFM). In LFM, the problem is modeled based on shockwave Expansion Theory , Piston Theory and Euler Bernoulli Model. Whereas in HFM, the problem is solved by coupling a fluid solver, OpenFOAM, with a structural solver, CalculiX, via a coupling library, preCICE. The shock-generating wedge was given a predefined oscillating rotating motion with a frequency of 42 Hz.
dc.identifier.urihttps://hdl.handle.net/20.500.14540/22679
dc.language.isoen
dc.publisherI.O.E
dc.subjectAeroelasticity
dc.subjectFluid-structure interaction
dc.subjectNumerical schlieren
dc.subjectOscillating shock impingement
dc.titleNUMERICAL SIMULATION OF HYPERSONIC FLUID-STRUCTURE INTERACTION ON CANTILEVER PLATE WITH OSCILLATING SHOCK IMPINGEMENT
dc.typeTechnical Report
local.academic.levelOther
local.institute.titleInstitute of Engineering
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