The explosive viscous liquid becomes inject to warhead by discharge system. The injection device is consisted of a piston to move down and leads the viscous fluid through the cylindrical pipe towards the end of the duct. Then the viscous fluid leads into a convergent path that will be injected to the warhead or other injection equipment. In this project, the path of viscous fluid flow is divide...

In this paper, the spectral volume (SV) method is extended to solve the Navier-Stokes equations by treating the viscous terms with a mixed formulation named local Discontinuous Galerkin approach. The SV method combines two key ideas, which are the basis of the finite volume and the finite element methods, i.e., the physics of wave propagation accounted for by the use of a Riemann solver and hig...

A full Navier-Stokes solver has been used t o model transonic flow over three airfoil sections. The method uses a two-dimensional, implicit, conservative finite difference scheme for solving the compressible Navier-Stokes equations. Results are presented as prescribed for the Viscous Transonic Airfoil Workshop to held at the AIAA 25th Aerospace Sciences Meeting. "Jones" airfoils have been inves...

A review of a procedure for the simulation of time-dependent, inviscid and turbulent viscous, compressible flows involving geometries that change in time is presented. The adopted discretization technique employs unstructured meshes and both explicit and implicit time-stepping schemes. A dual time-stepping procedure and an ALE formulation enable flows involving moving boundary components to be ...

An initial-boundary value problem for 1D flow of a compressible viscous heat-conducting micropolar fluid is considered; the fluid is thermodynamically perfect and polytropic. Assuming that the initial data are Hölder continuous on 0, 1 and transforming the original problem into homogeneous one, we prove that the state function is Hölder continuous on 0, 1 × 0, T , for each T > 0. The proof is b...

Linear response theory of thermal fluctuations or driven motion of tracers provides a basis for exploring viscous, elastic and compressible properties of condensed matter. Applications range from atomic physics [1, 24] where the methods were first developed, to recent applications in microrheology [13, 18, 7, 5, 11, 12, 2]. The emphasis here is on hydrodynamics and deformations of incompressibl...

For compressible fluids under shock wave reaction, we have proposed two Multiple-RelaxationTime (MRT) Lattice Boltzmann (LB) models [F. Chen, et al, EPL 90 (2010) 54003; Phys. Lett. A 375 (2011) 2129.]. In this paper, we construct a new MRT Lattice Boltzmann model which is not only for the shocked compressible fluids, but also for the unshocked compressible fluids. To make the model work for un...

Abstract This paper proposes a novel particle scheme that provides convergent approximations of weak solution the Navier‐Stokes equations for 1‐D flow viscous compressible fluid. Moreover, it is shown all differential inequalities hold fluid model are preserved by method: mass conserved, mechanical energy decaying, and modified functional also decaying. The proposed method can be used both as n...

The proposed work describes a novel viscous term specifically conceived to reduce the amount of acoustic pressure waves in weakly-compressible SPH models. above-mentioned only acts on component field, which is generated as consequence liquid impacts and assumption that fluid weakly-compressible, whereas it leaves incompressible-like unchanged. In comparison existing regularizing terms literatur...