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A “swallowtail” cavity for the supersonic combustor was proposed to serve as an efficient flame holder for scramjets by enhancing the mass exchange between the cavity and the main flow. A numerical study on the “swallowtail” cavity was conducted by solving the three-dimensional Reynolds-averaged Navier–Stokes equations implemented with a k–ε turbulence model in a multi-block mesh. Turbulence model...
Many physical experiments have shown that the domain switching in a ferroelectric material is a complicated evolution process of the domain wall with the variation of stress and electric field. According to this mechanism, the volume fraction of the domain switching is introduced in the constitutive law of ferroelectric ceramic and used to study the nonlinear constitutive behavior of ferroelectric...
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