Transient Analysis of Flow over a Throttle body using CONVERGE

Introduction:              In a spark-ignition engine, the fuel and air are mixed in the intake port. Then it goes to the cylinder through the intake valve. Inside the cylinder, mixing with residual gas takes place and then compressed. After the end of the compression stroke, combustion…

Introduction:                 Shock tubes are particularly useful in gas-phase work since high temperatures can be produced in a relatively short time and subsequent chemical changes can be studied. It consists of a high and low-pressure section. Those two sections are separated…

Introduction:                 Conjugate Heat Transfer (CHT) is used to refer as a process which involves a heat transfer occurs within and between the solid and fluid region. Conjugate heat transfer corresponds with a combination of heat transfer in fluid and solid. In solids, conduction…

Introduction: Compressible and Incompressible flow:                        As an object moves through the gas, the gas molecules will be deflected around the object. If the speed of the object moves much less than the speed of the sound, the density of the flow…

Introduction:            The throttle body assembly is a well-known part of the IC engine. The main function of the throttle body assembly is to control the airflow into the engine cylinder based on vehicle demand. It is also known as a butterfly valve. Amount of fluid goes through the butterfly…

Introduction:            The throttle body assembly is a well-known part of the IC engine. The main function of the throttle body assembly is to control the airflow into the engine cylinder based on vehicle demand. It is also known as a butterfly valve. Amount of fluid goes through the butterfly…

Objective:        To create the volumetric mesh for the given Turbocharger model. Procedure:       1) The geometry has been cleaned up by creating a new surface and delete the unwanted surfaces.       2) PID has been assigned to each and every component of the turbocharger.…

Objective:            To clean up the geometry and create the surface mesh on the surface of the BMW M6 car. And also to create the wind tunnel and volumetric mesh for that tunnel to conduct external aerodynamics analysis.   Procedure: 1) Unwanted curves are deleted from geometry…

Objective:      To create the surface mesh for a given cylinder. Procedure:     1) The mode has been converted from Entity mode (ENT) to Product ID mode (PID).     2) Geometry has been checked to find out the below-mentioned errors. From the test results, the geometry has…

Introduction:        Combustion is a high-temperature exothermic chemical reaction between fuel and air. it produces a flame, heat and unburnt gases. Any combustion at high temperature in atmospheric air which contains 78% Nitrogen will create `NO_x`. In this challenge,  The combustion…

Introduction:             A gate valve is a valve that opens by lifting a disc out of the path of the fluid. The mass flow rate of the outlet depends upon the lift of the disc. In this challenge, the parametric study has been performed for different settings of the…

Introduction:          Cyclone separators are devices that employ a centrifugal force generated by a spinning gas stream to separate the particle from the carrier gas. The gas stream with particles sent through the tangential inlet. The particle which has higher mass falls down through…

Introduction:           The gearbox is a complex system having mechanical elements ranging from gears, bearings, free-running clutches, etc. All these members require an ample amount of lubricant for trouble-free running.          …

Introduction:         A Graphics card is an expansion card which generates a feed of output images to monitor screen. It dissipates heat while the operation. The fins are used to increase the surface area which makes contact with ambient. The heat sinks are used to induce forced convection…

Introduction:      The analysis type of Conjugate Heat Transfer allows the simulation of the heat transfer between solid and fluid domains by exchanging thermal energy at the interface between them. Typical applications of this analysis type are the simulation of the heat exchanger, cooling of…

Introduction:        Rayleigh-Taylor instability is the instability of an interface between two fluids of different densities. Which occurs when a lighter fluid pushes the heavier fluid. RT instability develops initial perturbation progress from the linear growth phase. Eventually developing…

Introduction:          A Mixing Tee is used to mix the two different temperature fluids. A Mixing Tee is formed by two pipe sections joined at a right angle to each other. A good mixing happens when Standard deviation of outlet temperature is low. A good mixing can be achieved through…

Introduction:    It is necessary to maintain the balance between lift and drag force in automobiles. In order to maintain control for steering and braking, especially at high speeds, an increase in the drag force should be needed. However, increasing the drag force which leads to an increase in fuel consumption.…

Introduction:         In this challenge, the flow through the backward-facing step has been simulated using icoFOAM solver which is performed in OpenFOAM software. As a result of the simulation, velocity, pressure profiles for different mesh grading factor can be achieved. The dimension…

Objective:          To compare the results obtained from solving Hagen-Poisuielle\'s equation, Simulation results obtained by using Symmetry Boundary condition (Wedge angle= 10, 25 and 45 degrees), Simulation results obtained by using Wedge Boundary Condition (Less than 5-degree…

Introduction:            In this challenge, the simulation of flow through a pipe has been done by using OpenFOAM. Instead of creating the whole pipe, the wedge is created for low computational time. As a part of the challenge, MATLAB code that can generate the computational…

Introduction: In this challenge, we consider the flow through a convergent-divergent nozzle. The flow at the inlet to the nozzle comes from a reservoir where the cross-sectional area of the reservoir is large(Theoretically `Trarroo`) and hence the velocity is small (`v rarr0`). The flow expands isentropically to supersonic…

1) Central differencing scheme O(`Delta x^2`) `((del^2x)/(delx^2) =a*f(i-2)+b*f(i-1)+c*f(i)+d*f(i+1)+e*f(i+2))/(Delta x^2)`     The Taylor table can be obtained by expanding each function using the Taylor series  The Taylor Table for the central differencing scheme,   f(x) ∆x*f\'(x) (∆x^2)*f\'\'(x)…

Objective:        To solve the 2 Dimensional conduction equation using a Transient solver(for both explicit and implicit) and Steady-state solver using different iterative techniques.   Iterative techniques,            1) Jacobi           …

The equation of motion of a simple pendulum with damping: `(d^2theta)/(dt^2)+(b/m)(d theta)/dt +(g/L)sin theta = 0` By solving this second order ODE, we can get two first order ODE ydot(1) = y(2) ydot(2) = -(b/m)*y(2) - (g/L)*sin(y(1)) Given parameters: m=1 Kg b=0.05 L=1 m g=9.81 m/s^2 time duration = 0 to 20 sec Initial…