A number of irreversible processes in the engine limit its capability to achieve a highly balanced efficiency. The rapid expansion of gases inside the cylinder produces high-temperature differences, turbulent fluid motions, and large heat transfers from the fluid to the piston crown and cylinder walls. These rapid successions of events happening in the cylinder create expanding exhaust gases with pressures that exceed the atmospheric level, and they must be released while the gases are still expanding to prepare the cylinder for the following processes. By doing so, the heated gases produced...

Le tuyau coudé est un composant commun et essentiel en termes de transmission de fluide, que ce soit un fluide actif ou non actif. Le but du travail présenté est de conceptualiser une conception optimale d'un tuyau coudé avec des modifications appropriées, pour contribuer à des taux de vitesse plus élevés. La géométrie de base du tuyau coudé est modifiée avec un tube d'aspiration de différentes formes: carré, ellipse et circulaire. Les géométries modifiées sont simulées, évaluées et comparées à la géométrie du tuyau de base en termes de linéation de vitesse et de...

The discussed work studies the static analysis for an all-terrain roll cage vehicle in terms of impact, displacement, stress, and factor of safety along all the sides of the chassis considered. The solid mock-up of the roll cage is conceived and evaluated using Solidworks software. The simulations for the different conditions such as front, rear, side, and topple. The discussed work intends to deliver an optimum design with an accountable factor of safety, stress, and displacement value to contribute to the safety and durability of the roll cage. The obtained results depicted the accuracy as...

An aerofoil is a structure used in fluid flow conditions. Such shaped body moving through a fluid medium produces an effort on the structure. The component of this force perpendicular to the direction of motion is called drag. The lift of an aerofoil is the result of its angle of attack. When oriented to a suitable angle, the aerofoil deflects the oncoming fluid medium, resulting in a force on the aerofoil in the direction opposite to the deflection i.e. the structure offers the variation in velocity and pressure of flowing fluid when passed through it. The lift and drag forces are depending...

Das Krümmerrohr ist ein gängiges und wesentliches Bauteil in Bezug auf die Übertragung von Flüssigkeiten, sei es ein Arbeitsmedium oder ein Nicht-Arbeitsmedium. Das Ziel der vorliegenden Arbeit ist es, eine optimale Konstruktion eines Krümmerrohrs mit geeigneten Modifikationen zu konzipieren, um zu höheren Geschwindigkeiten beizutragen. Die Grundgeometrie des Krümmerrohrs wird mit Zugrohren verschiedener Formen modifiziert, nämlich quadratisch, elliptisch und kreisförmig. Die modifizierten Geometrien werden mit der SOLIDWORKS Software simuliert, ausgewertet und mit der...