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Simulation on Mixing Effectiveness over a T channel.

      Objective:   We have created two versions of the mixing tee. One of them is longer than the other. Our objective is to set up steady-state simulations to compare the mixing effectiveness when the hot inlet temperature is 360C & the Cold inlet is at 190C.  Using the k-epsilon and…

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Read more Projects by Nashit Ahmad (34)

Week 3 Challenge : CFD meshing on Turbocharger

Objective:

      Objective: For the given model, check for the geometrical errors to make appropriate volumes. Create and assign PIDs as shown in the video. Perform surface mesh with the given target lengths as per PIDs. Blade stage-1 = 1 mm Blade stage-2 = 1 mm Impeller = 2 mm Shaft rotor = 1 mm Turbo casing = 5 mm…

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18 Dec 2023 07:20 AM IST

  • CFD
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Week 2 Challenge : Surface meshing on a Pressure valve

Objective:

    Objective: For the given model, check for the geometrical errors and perform Topology cleanup accordingly. Set three different target lengths as three different cases and mesh the model.  Target length = 1mm, 3 mm, and 5 mm (i.e. 3 cases) Element type = Tria   Apply any target length from the above…

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07 Dec 2023 10:27 AM IST

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    External aerodynamics simulation over an Ahmed body.

    Objective:

        Objective: As the body is perfectly symmetric, we can run the simulation by considering the only half body. This is the best practice where you can save on the number of cells and get the results faster as well.  The geometry which is provided with the challenge needs a modification which you should…

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    19 May 2022 05:31 AM IST

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    1D Element Creation Challenge

    Objective:

        Objective:   Mesh the Given component with the Size of 5 Units. Create 1D elements on the following component with given cross-section and DOF a. Rod element:- Translational DOF should be Constrained with RBE2 link Cross-Section: BOX- Dimension a= 12 mm            …

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    18 May 2022 02:51 PM IST

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    Simulating Combustion of Natural Gas.

    Objective:

        Objective:   Part I Perform a combustion simulation on the combustor model and plot the variation of the mass fraction of the different species in the simulation using line probes at different locations of the combustor as shown in Fig. You need to plot for CO2, H2O, CH4, N2, O2, NOx emissions &…

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    18 May 2022 02:51 PM IST

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    Conjugate Heat Transfer Analysis on a Graphics card (GPU)

    Objective:

        Objective: Perform a steady-state conjugate heat transfer analysis on a model of a graphics card. You can use appropriate materials of your choice for the simulation. Make sure to properly define the correct solid and fluid zones. Refer to the video for further clarification and the model is provided below…

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    16 Mar 2022 02:32 AM IST

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    Parametric study on Gate valve simulation

    Objective:

      Objective:   For this challenge, you will have to perform a parametric study on the gate valve simulation by setting the opening from 10 % to 80%.  Obtain the mass flow rates at the outlet for each design point. Calculate the flow coefficient and flow factor for each opening and plot the graph. Discuss…

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    06 Mar 2022 09:21 AM IST

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      Simulation of Cyclone separator with Discrete Phase Modelling

      Objective:

        Objective:-    To perform analysis on cyclone separator including the following To write a few words about any four empirical models used to calculate the cyclone separator efficiency.  To perform an analysis on a given cyclone separator model by varying the particle diameter from 1 μm to 5 μm and…

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      06 Mar 2022 09:20 AM IST

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      Multiphase flow simulation on Rayleigh-Taylor Instability

      Objective:

          Objective:  What are some practical CFD models that have been based on the mathematical analysis of Rayleigh Taylor waves? In your own words, explain how these mathematical models have been adapted for CFD calculations. Perform the Rayleigh Taylor instability simulation for 2 different mesh sizes with…

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      14 Feb 2022 12:20 PM IST

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      Conjugate Heat Transfer analysis in exhaust port.

      Objective:

          Objectives:   Give a brief description of why and where a CHT analysis is used. Maintain the y+ value according to the turbulence model and justify the results.  Calculate the wall/surface heat transfer coefficient on the internal solid surface & show the velocity & temperature contours…

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      31 Jan 2022 05:37 PM IST

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      Simulation on Mixing Effectiveness over a T channel.

      Objective:

            Objective:   We have created two versions of the mixing tee. One of them is longer than the other. Our objective is to set up steady-state simulations to compare the mixing effectiveness when the hot inlet temperature is 360C & the Cold inlet is at 190C.  Using the k-epsilon and…

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      18 Jan 2022 08:24 AM IST

      Read more

      Von karman vortex effect simulation over a cylinder.

      Objective:

        Objective: Simulate the flow over a cylinder and explain the phenomenon of Karman vortex street.      PART-I Simulate the flow with the steady and unsteady case and calculate the Strouhal Number for Re= 100.  PART-II Calculate the coefficient of drag and lift over a cylinder by setting the Reynolds…

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      18 Jan 2022 08:16 AM IST

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      Battery Pack Modelling in Simulink

      Objective:

            Objective:   1. Build a battery pack with 3S4P configuration with generic battery block   a.Configure the batteries as per a Lithium-ion battery datasheet b.Explain your parameters c.Simulate the model and comment on the results for SOC, voltage, current in detail d.Change the configuration…

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      10 Sep 2021 04:34 AM IST

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      Thermal Management of battery

      Objective:

          Objective:   1. Prepare a report summarizing thermal management techniques for electric car battery packs (not more than 500 words) 2. create a simple simscape model with a battery and show the temperature dependence in the performance. Also, connect a resistor load of 10 Ohm (Hint: Table based battery,…

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      10 Sep 2021 04:34 AM IST

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      Simulation of Flow through a pipe in OpenFoam and MATLAB

      Objective:

            Objective:   In this challenge, you will simulate an axisymmetric flow by applying the wedge boundary condition. The flow is laminar and flows through a constant cross-section pipe at an inlet Reynold's number of 2100. You can do a transient or steady-state simulation and you will validate your…

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      15 Aug 2021 05:19 PM IST

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      Simulation using McCormack Method in a 1D Super-sonic nozzle flow.

      Objective:

          Objective: In this challenge, you are going to simulate the isentropic flow through a quasi 1D subsonic-supersonic nozzle. You will derive both the conservation and non-conservation forms of the governing equations and solve them using MacCormack's technique. You need to determine the steady-state temperature…

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      10 Aug 2021 06:58 AM IST

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      Simulation of a backward facing step in OpenFOAM

      Objective:

        Objective:   In this challenge, you are going to simulate an incompressible-laminar-viscous flow through the backward-facing step geometry. You should perform a transient simulation. The solver can be chosen based on the described physics of the flow. You need to explain the entire simulation procedure (how…

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      10 Aug 2021 06:58 AM IST

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      Literature Review of Finite Volume Method (FVM)

      Objective:

          Objective:  What is the Finite Volume Method(FVM), write down the major differences between FDM & FVM. Also, describe the need for interpolation schemes and flux limiters in FVM. You can use the 1D linear heat conduction equation as an example.   Solution: The Finite Volume Method (FVM) is…

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      10 Aug 2021 06:57 AM IST

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      Determining the State of Charge estimation by running the 3 test cases from Harness Dashboard.

      Objective:

          Objective:   1.Simulate the 3 test cases from the harness dashboard and write a detailed report on the results 2.What is coulomb counting? Refer to the above model and explain how BMS implements coulomb counting for SOC estimation?  Hint :(Download the file from the link and go to SOC estimation…

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      10 Aug 2021 06:56 AM IST

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      Prandtl Meyer Shock problem

      Objective:

          Objective: 1. Shock flow boundary conditions Do a literature search on what BC's are typically used for shock flow problems 2. What is a shock wave? In your own words, describe the physics behind shock waves 3. Effect of SGS parameter on shock location (Sub-Grid Scaling). In the Prandtl Meyer shock problem,…

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      02 Jul 2021 01:29 PM IST

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      Understanding Different Battery Chemistry

      Objective:

        Objective:   1.Prepare a table that includes materials & chemical reactions occurring at the anode and cathode of LCO, LMO, NCA, NMC, LFP and LTO type of lithium-ion cells. Give your detailed explanation on it 2.Compare the differences between each type of Li+ion batteries based on their characteristics…

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      02 Jul 2021 01:28 PM IST

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        Implementing control logic of a washing machine using State flow and Simulink chart for the Gear shift

        Objective:

            Objective:   Implement control logic of a “washing machine” using Stateflow as per given sequence:  If the power supply is available, the system gets activated  If the Water supply is not available, stop the process & indicate through LED Soaking time should be 200s followed…

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        02 Jul 2021 01:27 PM IST

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          Simulink Model of a Doorbell using solenoid block and Controlling the temperature of a heater using a thermistor.

          Objective:

            Objective:     Make a Simulink model of Doorbell using a solenoid block with the following details:   In the above arrangement, when the switch is closed the electromagnet receives electrical power from the battery and pulls the metal arm to hit the bell producing sound.  Create a situation…

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          25 May 2021 02:46 PM IST

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            Shock tube simulation project

            Objective:

                Objective: Setup a transient shock tube simulation Plot the pressure and temperature history in the entire domain  Plot the cell count as a function of time    Solution: Here we have a .STL file of a rectangular channel and where we simulate the flow and learn the concept of regions and events…

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            06 Mar 2021 12:07 PM IST

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            Solving the steady and unsteady 2D heat conduction problem using MATLAB

            Objective:

                Objective:   1. Steady-state analysis & Transient State Analysis Solve the 2D heat conduction equation by using the point iterative techniques that were taught in the class. The Boundary conditions for the problem are as follows; Top Boundary = 600 K Bottom Boundary = 900 K Left Boundary = 400 K…

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            06 Mar 2021 12:07 PM IST

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            Full Hydrodynamics case setup of a Port Fuel Injection engine system (PFI)

            Objective:

                Objective:   Setting up a case where like a previous challenge before, in the case of Port Fuel Injection where instead of meaning it for mesh generation, we got for Full Hydordyanmics setup in run parameters of a working IC engine.   Engine Geometric Parameters Bore =0.086 m Stroke =…

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            06 Mar 2021 12:07 PM IST

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            Transient flow simulation in a channel with mobile throttle body

            Objective:

                OBJECTIVE:   Setup and run transient state simulation for flow over a throttle body. Post process the results and show pressure and velocity contours. Show the mesh (i.e surface with edges) Show the plots for pressure, velocity, mass flow rate and total cell count. Also show the calculations on how you…

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            10 Jan 2021 12:07 PM IST

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            A simple Channel Flow in Converge CFD using Para view and Cygwin

            Objective:

            AIM:  As you watched the videos, set up the case in CONVERGE Make sure the inlet pressure and initial pressure are the same.  Once you have the base setup ready, run the case for three different base mesh sizes i.e You need to run 3 simulations and compare the results between all the 3 simulations. 3 different…

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            06 Dec 2020 05:16 PM IST

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            Analysing the engine data geometry with data visualizer tool in Python

            Objective:

            Objective: Task is to write a script that does the following. Data visualizer: Your script should take column numbers as the input and plot the respective columns as separate images Each file should be saved by the name of the column The plot labels should be extracted from the file. If, I request for a plot between column…

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            10 Nov 2019 01:55 PM IST

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              Finding the best curve fit in the Specific Heat and Temperature graph in Python

              Objective:

              Objective: 1. What does popt and pcov mean? (Watch the video to get some context) 2. What does np.array(temperature) do? 3. What does the * in *popt mean? 4. Write code to fit a linear and cubic polynomial for the Cp data. Explain if your results are good or bad.  5. What needs to be done in order to make the curve…

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              04 Nov 2019 12:26 PM IST

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                Transient behaviour of a simple pendulum using 2nd order ODE in python

                Objective:

                Objective: Write a program to simulate the transient behaviour of a simple pendulum and to create an animation of its motion. Brief: In Engineering, ODE is used to describe the transient behaviour of a system. A simple example is a pendulum The way the pendulum moves depends on the Newtons second law. When this law is…

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                18 Oct 2019 07:22 AM IST

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                  Air standard cycle of an otto cycle simulating in python

                  Objective:

                  Objective: Based on the concepts you have learnt during the forward kinematics routine, go ahead and write code that can solve an otto cycle and make plots for it. Here are the requirements: Your code should create a PV diagram. You should output the thermal efficiency of the engine. Theoretical Explanation:  Now,…

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                  15 Oct 2019 09:49 AM IST

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                    Finding global optima using genetic algorithm of a stalagmite function

                    Objective:

                    Objective: Try to understand the concept of genetic algorithm by referring to various sources before you attend this challenge. Look out for information regarding stalagmite function and ways to optimise it. Write a code in MATLAB to optimise the stalagmite function and find the global maxima of the function. Clearly…

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                    09 Oct 2019 06:18 AM IST

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                    Solving the Transient behaviour of a simple pendulum with 2nd order ODE in MATLAB

                    Objective:

                    Objective: Write a program to simulate the transient behaviour of a simple pendulum and to create an animation of its motion. Brief: In Engineering, ODE is used to describe the transient behaviour of a system. A simple example is a pendulum The way the pendulum moves depends on the Newtons second law. When this law is…

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                    17 Sep 2019 01:07 AM IST

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