6 papers
Comparative study of equilibrium and non-equilibrium predictions by different models for a hypersonic cone at high-altitude
Mengyu Wang, Pan Yan, Qin Li +3
Targeting a cone with the half-angle as 10-deg at M = 27 and H = 72 km, simulations were conducted comparatively to analyze the predictions by different equilibrium and non-equilib…
Numerical study of friction reduction and underlying mechanism of air film via parallel and tandem injections on a hypersonic flat plate at high altitude
Xiuzheng Cheng, Mengyu Wang, Qin Li +3
This study uses numerical simulations to analyze a flat-plate with air films generated via parallel and tandem injections under freestream conditions of Ma=15 at an altitude of H=6…
Accuracy analysis and optimization of scale-independent third-order WENO-Z scheme with critical-point accuracy preservation
Yunchuan Wu, Xiuzheng Cheng, Yi Duan +4
To address the order degradation at critical points in the WENO3-Z scheme, some improvements have been proposed , but these approaches generally fail to consider the occurrence of…
Evolution and sudden change of steady interactions of low enthalpy hypersonic double wedge flows with fore angle
Yihui Weng, Yi Duan, Qin Li +4
The evolution and sudden change of steady interaction structures is numerically studied with the fore wedge angle theta_1 in a low enthalpy hypersonic double wedge configuration. I…
Design of a variable-Mach-number waverider by the osculating-curved-cone method using a rational distribution function and incorporating the equilibrium-gas model
Mengyu Wang, Yi Duan, Qin Li +2
When a waverider flies at hypersonic speed, the thermodynamic properties of the surrounding gas change because of the rapid increase in temperature, so it is reasonable to consider…
Numerical studies on steady interaction of low enthalpy hypersonic double wedge flows using different gas models
Qin Li, Y Wang, Yihui Weng +5
Numerical investigations and analyses are carried out particularly on the steady interactions of low enthalpy hypersonic 30-55-deg double wedge configuration at conditions similar…