Week 7 - Auto ignition using Cantera

AIM:To perform sensitivty analysis of reaction from GRI Mechanism reactions Introduction: A Combustion reaction contains thousands of intermediate reactions each having their individual rate constants.The reaction mechanism produces a number of observable parameters such as temperature profiles,laminar flame speed, species…

AIM: To perform Auto Ignition using Cantera Part 1: Performing Simulation on Auto-Ignition and Ignition delay on Methane on variation temperature and pressure with a simulation time of 10secs in below two cases  Case:1 Plotting the variation of Auto Ignition time of Methane with a constant temperature of 1250K and…

Aim :To solve the set of equations with multiple variables using the Newton Raphson Solver. Apparatus or given data: 1)`(d underset(1)(y))/dt=-0.04underset(1)(y)+10^4underset(2)(y)underset(3)(y)` 2)`(d underset(2)(y))/dt=0.04underset(1)(y)-10^4underset(2)(y)underset(3)(y)-3.10^7underset(2)(y^2)` 3)`(d underset(3)(y))/dt=3.10^7underset(2)(y^2)`…

Literature Review on ODE Stability: Objective: Discussing the stability analysis of an ODE and writing python code for the sake of understanding more clearly. Knowing when an ODE gets unstable, How does stability affect engineering simulations, and Can stability condition be derived for all types of problems? Stability:…

         Compact Notation Derivation for a                      simple Mechanism Given Reaction Mechanism CO + O2 -> CO2 + O O + H2o -> OH + OH CO + OH -> CO2 + H H + O2 -> OH + O Compact Notation:The above mentioned four reaction…

Aim:To Perform Preheating in a furnace which is connected to recuperator and to calculate 1) Effect of preheating on the adiabatic flame temperature 2) Effect of preheating on the Combustion effieciency under fuel saving Apparatus or Given data: 1)Methane and Air mxture is used to burn thee furnace 2)Prehating Temperatures …

Aim:To Simulate Handling Mixtures (O2 + N2 +CH4) in Cantera and calculating the Adiabatic Flame Temperature. Apparatus or Given data: 1)O2 mole fraction =0.21 2)N2 mole fraction =0.79 Calculation:  Assuming The General equation for fuel(Hydro-Carbon) reaction with Air CH4 + 2 (O2 + 3.72 N2)=CO2+2H2O+7.52N2 1.Use the…

Aim: To Simulate and Calculate the Adiabatic Flame temperature Given Condition: Case 1: Effect of equivalence ratio on AFT Case 2: Constant pressure reactor with heat loss Case 3: Comparing general Alkane equation with heat loss zero Case 4: Comparing Species using Cantera ADIABATIC FLAME TEMPERATURE: In the study of combustion,…

                                   Simulation to Perform  analysis on Cyclone seperator  Objective: Perform an analysis on the given cyclone separator model using four different boundary condition types at the inlet i.e.…

          Simulation to conduct Combustion on the Combuster model Objective:- Perform a combustion simulation on the combuster model and plot the variation of the mass fraction of the different species in the simulation using line probes at different locations of the combuster. You need to plot…

                        Simulation to Conduct Gear Sloshing effect AIM:To perform the simulation for two clearances of the gears and also using a different fluid Objectives :- To perform the simulation for two clearances of the gears and also using a different…

                 Simulation to conduct Parametric Study on Gate Valve Objective :- To perform a parametric study on the gate valve simulation by setting 5 design points starting from the initial condition of lift with the least value of mass flow rate. Obtain the mass flow rates…

 Rayleigh Taylor Instability Challenge AIM:To Perform the Rayleigh Taylor instability simulation for 3 different mesh sizes Apparatus :The base mesh size is being 0.5 mm INTRODUCTION TO RAYLEIGH TAYLOR INSTABILITY The Rayleigh–Taylor instability, or RT instability, is instability of an interface between two…

                                  Steady state CHT Analysis on a Graphics Card Aim :To Perform a steady state CHT analysis on a graphics card. Objective: The main aim of this project is working on Conjugate Heat Transfer On a Graphics…

                         Conjugate Heat Transfer Analysis on an Exhaust Manifold AIM:To Perform a CHT analysis on an exhaust manifold Part A Conjugate Heat Transfer The term conjugate heat transfer is used to describe processes which involve variations of…

                                           AHMED BODY CHALLENGE AIM:Simulation on Ahmed Body to Perform the Grid…

Given Task:In the Privious part we looked into the simulations results for the laminar,incompressible flow through a pipe in a openfoam.Now in this section we would attemp the same problem with the symmetry boundary conditions.   In the following project a script was written in MATALB to generate the blockMeshDict…

OBJECTIVE:To write a program in Matlab which will generate BlockMeshDict fileautomaticlly of given grading schemes and wedge conditions. and to study theflow through a pipe in OpenFoam and validate the results with theoreticalequations which is Hagen poiseuille\'s equation. GIVEN:Reynolds Number - 2100 Radius of pipe (r)…

Aim:Simulation of a 2D Heat Conduction problem in steady and unsteady/transient forms using iterative methods. Project Objectives:Solving the 2 Dimensional Heat conduction equation in the generalized form using various iterative techniques: Explicit Solver (for unsteady state) Implicit Solvers (for both steady and unsteady…

Aim:To Evaluate the 1D supersonic nozzle flow equations using the Macormack Method. Source: GNU OCtave Source Code: Main Program clear all close all clc %Input L=3; n=31; %No. of grid points x=linspace(0,L,n); %Domain Length dx=x(2)-x(1); %Grid spacing gamma=1.4; nt=1400; throat=(n-1)/2; a=1+2.2*(x-1.5).^2; %Area Profile…

FVM Literature Review Interpolation Schemes in Finite Volume Method(FVM): The approximation of surface and volume integrals may require values of the variable at locations other than the computational nodes of the CV. The values at this locations can be obtained by using interpolation formulas, some of the methods…

Aim: To simulate the flow through a backward facing step by using the blocks in icofoam solver and postprocess the results like velocity profile at the step of 0.085m from the start point of the blocks. Given Specifications: Mesh specification Number of cells along the x direction (longer dimension) = 200 Number of cells…

Aim: To compute and Compare 4th order approximations of the second order derivative using 1. Central difference method 2. Skewed right sided difference method 3. Skewed left sided difference method Inputs: Analytical Function:exp(x)*cos(x) Source : GNU OCTAVE Source code: clear all close all clc % Initial conditions x…