Week 5 - Rayleigh Taylor Instability

Aim:-To setup the transient shock-tube simulation-To study about pressure, Temperature and cell count as the function of timeIntroductionA shock tube creates direct shock waves to mimic genuine explosions safely. Shock waves are used to study the movement of gasses across materials, for military applications, to create…

IntroductionIn modern world the term ‘‘heat transfer’’ is very important. Latest products and processes are being invented and implemented day by day. Almost all such latest technology developments involve energy interaction and heat transfer. The application field of heat transfer ranges from material processing to space…

Aim:To study about the shock wave, Shock flow boundary conditions, effect of SGS parameter on the shock location with help of simulation on the CONVERGE CFD.Introduction:As an object moves through a gas, the gas molecules are deflected around the object. If the speed of the object is much less than the speed of sound of…

Aim:(i) To carry out the flow over backward facing step simulation for three different meshes.(ii) To visualize the plots of velocity, pressure, mass flow rate, total cell counts and pressure, temperature contours (iii)To study about the flow separation Introduction:Backward-Facing Step flow is one representative…

AIM:(i) To Setup a simulation on the Channel Flow for three different meshes (ii)To study about the parameters such as Pressure, Velocity, Mass Flow Rate for three different meshes with help of contours, Plots.(iii)To understand the flow development with the help of animationIntroduction:A substance in the liquid…

Aim: (i)To study about aprroaches involved in model moving zones. (ii)To study about approach used to model unsteady phenomena. (iii)To study about velocit profile by simulating the  rotary motion of geometry given. Introduction: Fluent: In the early 1980s, from the buildings of Sheffield University with contributions…

Aim: To setup a simulation of flow over NACA 0012 Airfoil at subsonic and supersonic Regimes for three different Angle Of Attacks (AOA). Introduction:  An airfoil (American English) or aerofoil (British English) is a streamlined body that is capable of generating significantly more lift than drag. Wings, sails and…

Converging-Diverging nozzle: The flow area decreases with decrease in pressure and increase in velocity and at the throat,Area is constant where Mach number becomes 1 and then flow area increases with rapid decrease on flow density due to the density parameter pressure also reduces with increase in velocity. Converging-diverging…

Aim: (i)To simulate a transient,axisymmetric laminar flow through the constant cross-section pipe with the reynolds number 2100 using an openFOAM by applying the wedge boundary conditions (ii)Validating Hydro-dynamic length,fully developed flow velocity profile ,maximum velocity ,pressure drop parameters with the Hagen-poiseuille's…

Aim: (i)To understand the Conjugate Heat Transfer and its applications  (ii)To determine the Heat Transfer Coefficient (HTC) on the internal wall surface by maintaining the y+ value according to the turbulence model. (iii)To understand behaviour of the fluid with the help of the velocity and temperature contours at…

  Aim: (i)To perform the Geometry cleanup of the Tesla Cyber Truck CAD Model. (ii)To convert the multiple volumes inside the truck CAD model into single volume. (iii)To Perform surface meshing with different target lengths for the truck model. (iv)To create the windtunnel over the CAD model. (v)To Perform volumetric mesh…

Aim: (i) To perform a geometry clean-up of a given model. (ii) To Merge three different models (Engine,Gearbox,Transmission). (iii) To perform surface wrap of the merged model.   Introduction: Mesh data is commonly used in various industries,among those Computational Fluid Dynamics Significant industries are present.Those…

Aim: (i)To perform a geometric cleanup of the CAD Model of a BMW car. (ii)To convert the multiple volume inside the geometry into one single Volume. (iii)To create the windtunnel and the Surface mesh for the Whole model with the specific target lengths (iv)To create the Volumetric mesh between the wind tunnel and the BMW…

Aim: To perform the surface mesh using target lengths of (i)1 mm at Blade stage-1,stage-2,shaft rotor (ii)2 mm at impeller (iii)5 mm at Turbo casing,compressor casing,Inlet casing cover on the turbocharger. To perform a volumetric mesh on the Turbocharger. Procedure: 1.Start->ANSA ,ANSA Launcher will opens up by default…

Aim: To perform (i)topology clean up (ii)Checking geometrical errors (iii) meshing for three different target lengths of 1,3,5 mm with the element type of triangular using ANSA. Introduction: ANSA is an advanced CAE pre-processing tool for Finite Element Analysis that provides all the necessary functionality for full-model…

Aim: (i)To perform a steady-state Conjugate Heat Transer analysis on the graphics card for three different velocities from 1m/s to 5 m/s (ii)To determine the maximum heat transfer coefficient and temperature attained by the Processor for varying velocities (iii)To identify the hotspots on the model  Introduction:…

Aim: To perform (i) simulations for two different sizes with base mesh 0.5 mm and for water-user defined material (density-400 `frac{kg}{m^3}` & viscosity-0.001  `frac{kg}{m-s}` (ii)a Study practical CFD model based on mathematical analysis of Rayleigh-Taylor waves and how the mathematical models has to implement in CFD…

Aim: To study about the flow over the ahmed body for the inlet velocity of 25 m/s (i) for the parameters of velocity ,pressure through out the domain , lift coefficient and drag coefficient for body walls (ii)performing a Grid indepence test (iiii)for visualising a velocity vectors in the wake region. Introduction: In…

Aim: To simulate the flow over the cylinder for  study about the flow behaviour in  unsteady state. study about the lift and drag coefficients for various reynolds numbers  in steady state. study about the vortex shredding behind the cylinder and strouhal number for reynolds number 100. Introduction: Fluid flow over the…

Objective:       Setup a steady state simulation to determine and compare a average outlet temperature and mixing efficiency of a fluid for two different Tee Pipe with different Momentum Ratio's using Ansys Fluent   Introduction: piping systems occurs  in the various applications do not…

Finite Volume Method (FVM): Finite Volume Method is one of the numerical method to dicretise the governing equations of fluid flow,Heat Transfer etc.., Discretisation carried out by integrating the governing equation at a point on the domain over a control volume .Convective and diffusive fluxes at cell faces or CV faces…

Rankine Cycle The Rankine cycle is a model used to predict the performance of steam turbine systems. It was also used to study the performance of reciprocating steam engines. The Rankine cycle is an idealized thermodynamic cycle of a heat engine that converts heat into mechanical work while undergoing phase change. It…

Intoduction: A flow in which density remain constant of an each individual fluid parcel is called incompressible flow.Reynolds Number provides a relationship between viscous forces and inertia forces where the high viscous forces will make fluid particle to move smoothly in a regular paths (in a organised way) is called…

INTRODUCTION Conduction takes place in all phases: solid, liquid, and gas .In Solids, conduction is mediated by the combination of vibrations and collisions of molecules, of propagation and collisions of phonons, and of diffusion and collisions of free electrons. In gases and liquids, conduction is due to…

Introduction: Isentropic Process: A process during which entropy remains constant is called an isentropic process.Change in entropy araises due to heat transfer and irreversiblities. Isentropic process used in thermodynamics to imply an internally reversible,adiabatic process Adiabatic Process: A Process during which there…

Aim i.To derive a three different schemes of fourth order approximation for second order derivative ii.To compute and compare the three different schemes for a function `e^x*cos x`   Introduction To analyze a Fluid flow,it is necessary to discretise the object and solving the discretised object with the help…

Objective write a code to parse Nasa Thermodynamic data file  to evaluate a molecular weight for different species and to evaluate a thermodynamic properties such as Enthalpy,Entropy ,specfic heat for different temperature and species.   File parsing Parsing a file means reading in a data stream of some sort…

Introduction Drawing its inspiration from Charles Darwin's theory of natural evolution, one of the most fascinating techniques for problem-solving is the algorithm family suitably named evolutionary computation. Within this family, the most prominent and widely used branch is known as genetic algorithms. This algorithm…

Aim To Simulate a pendulum motion and to solve the equation of the motion of a simple pendulum with damping by using a given parameters on a MATLAB Simple pendulum A pendulum is a weight suspended from a pivot so that it can swing freely. When a pendulum is displaced sideways from its resting, equilibrium position, it…