Flow separation at the vehicle’s rear end is the major cause of an aerodynamic drag in a car. In order to delay the flow separation at the rear, bump-shaped vortex generators at the roof end of a car are tested in this paper for two different types of car models Sedan and Hatchback. The aerodynamic analysis is carried out using GAMBIT and FLUENT for Sedan and Hatchback models. Vortex Generators...

This paper describes a new implementation of an algorithm to find all isolated Nash equilibria in a finite strategic game. The implementation uses the game theory software package Gambit to generate systems of polynomial equations which are necessary conditions for a Nash equilibrium, and polyhedral homotopy continuation via the package PHCpack to compute solutions to the systems. Numerical exp...

Recent years, with the rapid development of P2P networks, the security problem of these networks has become increasingly obvious. According to the behavior of selfishness and betrayal for nodes in P2P networks, this paper analyzes and contrasts the benefits of these nodes, and presents the P2P game model with the penalty factor. The reasonable analysis and simulation by gambit prove that, addit...

customs; and, of course, always with the naive assumption that one's o^l and one's own stick are inviolable. I remember being told, on returning ?'< visit to some children's hospitals in Barcelona, that we have nothing whate'i learn from Spain, apart from guitar playing and bull-fighting; my inform u course, has yet to go there to confirm this opinion. It was amusing to setsr this the remark of...

A newly developed system for defining watertight volume geometry on imported foreign CAD models is described. This system is based on an overlay grid mesher that is being developed in the GAMBIT preprocessing code. It is being explored as an alternative way of cleaning dirty geometries. This overlay meshing based geometry cleanup enables an automatic volume reconstruction from inconsistent B-Re...