Simulating hypersonic flow around a space vehicle is challenging because of the multiscale and nonequilibrium nature inherent in these flows. To effectively deal with such flows, hybrid scheme combining stochastic particle Bhatnagar-Gross-Krook (BGK) method direct simulation Monte Carlo (DSMC) was developed recently, but only for monatomic gases (Fei et al. (2021) [29]). In this paper, particle...

Video super-resolution (VSR) aims at restoring a video in low-resolution (LR) and improving it to higher-resolution (HR). Due the characteristics of tasks, is very important that motion information among frames should be well concerned, summarized utilized for guidance VSR algorithm. Especially, when contains large motion, conventional methods easily bring incoherent results or artifacts. In th...

Aims. The break-up of a dustball meteoroid is investigated numerically based on fluid dynamics simulations the meteoroid’s atmospheric entry flow. Both thermal and mechanical mechanisms are implemented, in order to investigate disintegration. Methods. A three dimensional model composed thousands small spherical grains was used flow simulation, performed with direct simulation Monte Carlo (DSMC)...

gas mixing in a t-shape micro mixer has been simulated using the direct simulation monte carlo (dsmc) method. it is considered that the adequate mixing occurs when the mass composition of the species, co or n2, deviates below 1 % from their equilibrium composition. the mixing coefficient is defined as the ratio of the mixing length to the main channel’s height. as the inlet kn increases, while ...