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Computation of Electron Density of Far Field Turbulent Trail of Hypersonic Reentry Bodies
Pages: 115-119
Year: Issue:  S1
Journal: Transactions of Beijing Institute of Technology

Keyword:  turbulent wakehypersonic reentry bodyelectron density;
Abstract: Aim To give parameters required for the computation of the radar diffusion section of the trail. Methods An engineering model for hypersonic reentry body trail was established, and a calculation was performed using boundary layer theory. Prandtl’s mixture length theories of turbulent shearing stress and Crooco method were used to predict the distribution of velocity and temperature respectively. Lykoudis’s method was used to calculate the parameters at the axis of the trail. Then the free electron density and trail lengths were predicted. Results and Conclusion The calculated radar diffusion section, using the free electron density of the trail as its input has higher accuracy than the two dimensional results.
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