Mechanical Engineering – ANSYS Fluent Training Package, 10 Practical Exercises for BEGINNER Users (Part 1)

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Mechanical Engineering – ANSYS Fluent Training Package, 10 Practical Exercises for BEGINNER Users (Part 1)

Mechanical engineering is amongst the principal engineering fields. The mechanical engineering field need an comprehension of core regions, including mechanics, dynamics, thermodynamics, materials science, structural analysis, and electricity. It is the chapter of engineering that brings in the design, production, and operation of machinery devices. CFD software has armed us with strong instrumentation to simulate mechanical engineering processes and fluid mechanics projects impressively. As all of us know, the fluid mechanic branch is the basic field of mechanical engineering, and the primary method for predicting fluid mechanic behavior is computational fluid dynamics.

There are 10 different practical projects (practical exercises) in this training package by ANSYS Fluent software. This package presents how to simulate different mechanical devices for all BEGINNER users.

The problem number 1 simulates the lubrication process effect on friction factor in the space between the cylinder and the ring in an engine considering various groove texture patterns. In fact, the movement of the ring on the inner surface of the cylinder of an engine causes friction between the surfaces. The lubrication process can be used to reduce friction between surfaces. In project number 2, the heat transfer process in brake disks is simulated. “Disk2” has a rotating motion with a rotational velocity of approximately 343rpm. The existing disks have the same temperature equal to 343 K. since “Disk1” is stationary, it will cause “Disk2” to slow down and exerts friction to it.

The problem number 3 simulates methane gas flow through an orifice within the canal. The orifice is one of the most common devices for measuring mass flow using Differential Pressure (DP) transmitters. The simplest orifice model consists of a perforated plate perpendicular to the desired channel’s fluid flow path. In the simulation number 4, the airflow hits the U-shaped wall in the form of an impinging jet to study the Nusselt number in different Reynolds numbers. An impinging jet is a fluid jet that strikes a surface vertically or at a specific angle for cooling or heating. Impinging jets have excellent heat transfer properties due to their turbulence and high speed.

In the project number 5, the ventilation system of a ship engine room is investigated. This room consists of an air inlet (mass-flow type, 35 Kg/s) and two pressure outlets. The diesel engines and motors generate heat (12500 an 8333.333 W/m³ respectively) while working, the injected air (300 K) has the responsibility of cooling the engine room and lowering the temperature of engines and motors. The problem number 6 simulates a rotating disk in a room. The purpose of this work is to investigate the airflow behavior under the influence of rotational motion of a rotating disk. In this simulation, there is an air flow in a computational domain (room) and in the middle of this room, a rotating disk with a certain rotational speed is placed.

In the project number 7, the movement of heated airflow over the surface of an airfoil body and the airfoil cooling by means of lateral hole air inlets is simulated. The heated air enters the computational domain with velocity and temperature of 15 m/s in the X direction and 600 K respectively. Two lateral air inlets are responsible for the surface cooling of the blade or airfoil. In the practical exercise number 8, two different F1 spoilers, in opening and closing modes are compared using CFD simulation in ANSYS Fluent software. The car as a moving device has always been involved with air flow, so the science of aerodynamics has helped engineers bring the best performance to the car.

The problem number 9 deals with the flow of water vapor as the main fluid (primary) and the secondary fluid (suction) within a convergent-divergent steam ejector. The purpose of the present simulation is to investigate the behavior of primary and secondary fluid after passing through the internal convergent-divergent nozzle and the ejector diffuser. In the present model, due to the vacuum pressure difference between the two inlet fluids, the suction phenomenon for the secondary fluid has to occur. The last problem (practical exercise number 10) is going to simulate an injector. The Multi-Phase model, which consists of air and water flows is used. Water flows through three curved injectors into a reservoir that only has airflow inside its space.

You can obtain Geometry & Mesh file and a comprehensive Training Movie that presents how to solve the problem and extract all desired results.