Development of a Three-Dimensional Unstructured Euler Solver for High-Speed Flows
Journal Title: INCAS BULLETIN - Year 2015, Vol 7, Issue 4
Abstract
This paper addresses the solution of the compressible Euler equations on hexahedral meshes for supersonic and hypersonic flows. Spatial discretization is accomplished by a cell-centered finite-volume formulation which employs two different upwind schemes for the computation of convective fluxes. Second-order solutions are attained through a linear state reconstruction technique that yields highly resolved flows in smooth regions while providing a sharp and clean resolution of shocks. The solution gradients required for the higher-order spatial discretization are estimated by a least-square method while Venkatakrishnan limiter is employed to preserve monotonicity and avoid oscillations in the presence of shocks. Furthermore, solutions are advanced in time by an explicit third-order Runge-Kutta scheme and convergence to steady state is accelerated using implicit residual smoothing. Flow around a circular arc in a channel and flow past a circular cylinder are studied and results are presented for various Mach numbers together with comparisons to theoretical and experimental data where possible.
Authors and Affiliations
Tudorel AFILIPOAE, Marius STOIA-DJESKA
Keywords
Related Articles
- EP ID EP159101
- DOI 10.13111/2066-8201.2015.7.4.1
- Views 111
- Downloads 0
The Design Algorithm of the Optimum Structure from the Elasticity Module Point of View for Composite Materials
: Unlike other researches in the field, the simultaneous influence of all structural elements on the elasticity module is studied in this paper. The obtained physical – mathematical model is in good accordance with the e...
Nanocomposites as Advanced Materials for Aerospace Industry
Polymer nanocomposites, consisting of nanoparticles dispersed in polymer matrix, have gained interest due to the attractive properties of nanostructured fillers, as carbon nanotubes and layered silicates. Low volume addi...
About some relevant aspects regarding WENO type schemes on the shock tube problem
The paper is a continuation of the efficiency and accuracy analysis of different high order numerical schemes previously published by the authors [1-3]. After the analysis of advection equation and the scalar conservatio...
Comparative Risk Assessment in Applicative Aerospace Projects using different approaches
Certification of the quality management system for aviation, space and defense organizations, according to EN 9100: 2016 / AS 9100D standard requires compliance with the operational risk management requirement. This arti...
Active Space Debris Removal System
Since the start of the space era, more than 5000 launches have been carried out, each carrying satellites for many disparate uses, such as Earth observation or communication. Thus, the space environment has become conges...