Fluent parametric study

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Fluent parametric study

I have set up a parametric study with fluent, so I am using the same mesh, and only changing one temperature parameter to see the results.

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The problem is that every time parametric study changes the temperature and wants to run the simulation, it is kind of loading the mesh and setup file again and again. This process elongates the simulation time significantly. I found if I do that manually, it will be way shorter. My question is that if there is a way to prevent fluent from reloading the model and just adjusting the parameter and running the simulation?

You set up as normal from there. I will try that, I think in that case it will reread the case file and it might take a while again. I tried changing the parameters while fluent is open when I click on the refresh button on the top, it only refreshes the input parameters, which is fast. I think that would be great if the same way could be enabled in the automated parametric study.

Are you working with components? Under design parameter tab in AN hit update parameters and not full project. Thank you for your response, I am updating the design points not the entire project.

I am using the update design points. As shown below, for every design point, it is resetting the fluent not closing itloading mesh and case again and then updating the input parameters and running the simulation. You can enable store case under solution or setup cell first-time creatingvthevfluent component. Thus would result in Fluent just loading case file like ydual insteafing of reading mesh and applying settings.

I tried importing only case file, it still reloads the case file and changes the input the parameters every time wants to use new parameters. Could you please send a screenshot of that option?

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Home Leaderboard Activity Badges. You must enable JavaScript to be able to use this site in full.I tried a very simple problem. The geometry is just a block. When I update my design points, I get the same output the mass flow everywhere, it doesn't matter what I use for input. I don't get any error message. Hello peteroznewman. I'm using the version I created a new output parameter called mass-flow-output-op and that is working the way you want it to.

I know this is just a test model to work out how to use parameters but have you evaluated if those velocities of air would result in Turbulent flow vs the Laminar flow you selected? Follow these directions to create or use Workbench Project Archive files. I also attached your model that was in the Google link above with the suffix Original. Home Leaderboard Activity Badges.

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You must enable JavaScript to be able to use this site in full. Physics Simulation Fluid Dynamics Parametric analysis fluent. I try to run some parametric analysis with fluent and it's just not working. I share my test files, as well as a screenshot of the table of design points.

I'm using a student version I would be very thankful if someone could help me. Greetings, Lisa. Permalink 0 0 0. Order By: Standard Newest Votes. Hello peteroznewman, I'm using the version Attached Files.January 25,Parametric Study. Join Date: Sep I am simulating an external flow. I know we can do parametric analysis of variables from Fluent but is it possible to do even from meshing or we have to do hard way of individual simulation for each values?

January 25, You can make a new geometry by just changing a few numbers in Gambit Journal file that you have made the first time. Fluent has also a Journal file for automizing tasks. January 28, Last edited by victoryv; January 31, at January 31, Thread Tools. BB code is On. Smilies are On. Trackbacks are Off. Pingbacks are On. Refbacks are On. Forum Rules. All times are GMT The time now is Add Thread to del. Recent Entries.A Gate valve is a device used to restrict the flow of water in variable amounts.

The main parts of gate valve are body, gate disc, bonnet, spindle, handwheel. The lift of gate disc decides the flow rate. The simulation of the flow inside the gate valve for different gate lift heights can be done separately, but would consume a lot of time in setting up the cases.

Here, the advantage of parametric study comes into play.

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We can setup a single case and then parametrize the lift value as input parameter and mass flow rate out of outlet to be output parameter. This will reduce the time required for manually setting up each case. So, the example of gate valve is taken to learn setting up the parametric case. The ends of the valve are extended to include the flow before and after the gate valve. On inlet side, the volume is extended by mm and on outlet side it is extended by mm.

These values of fluid volume extension are taken based on a previous simulation not posted here where it was observed that flow doesn't get disturbed if following dimensions are used.

This allows to decrease the element size without crossing the limit of number of elements. The gate valve lifts considered here are 10, 20, 30, 40, 50 mm. For each case, images of geometric volume, mesh, mesh quality, residuals, mass flow rate plot and animation of contour plot of velocity are given. Here, the mass flow rate is represented as negative because ANSYS treats mass flow of a fluid going out of fluid volume as negative. Setting up of parametric case is understood and the dependence of gate valve lift to outlet mass flow rate is studied.

To calculate efficiency of the given cyclone geometry. Aim: To learn simulation of dynamic mesh by using user defined function. Usually, the object itself Read more.

fluent parametric study

Aim: To perform CHT analysis on graphic card. Notes: In last part of this project, the same problem was simulated but with a change. While I used wedge boundary conditions for Read more. A basic hagen poiseuille flow is the one which is developed when laminar flow just starts to flow inside a Read more. Analysis: The model used here is: The fluid pipe diameter is: mm The ends of the valve are extended to include the flow before and after the gate valve. The Fluid volume is: The gate valve lifts considered here are 10, 20, 30, 40, 50 mm.

Projects by Raj Rathod. Objectives: 1 To know what about an ahmed body. The End. Have an awesome project idea? Start working on it and share it with the world.Hello all! I am doing a parametric study with ansys fluent. Is there any way? If you are working in the workbench and you want not only to get the output parameters updated but also to store the data of each design point you need to retain data.

fluent parametric study

Home Leaderboard Activity Badges. You must enable JavaScript to be able to use this site in full. Mohammadreza posted this 25 July Permalink 0 0 0.

Parametric Study With Fluent

Attached Files. Order By: Standard Newest Votes. Best regards, Amine. Just click on parameter set and then check retain data for every design point of interest. Search in Post Topic. Popular Tags fluent ansys udf workbench cfd asc mesh fluid-dynamics error mechanical apdl cfx meshing structural-mechanics maxwell hfss static-structural general transient student This Weeks High Earners peteroznewman abenhadj 66 kkanade 52 pblarsen 49 tsiriaks 41 rwoolhou 41 Amin 29 Aniket 28 pnisc 20 Kremella Sowmiya has been awarded the Your Question Solved badge.

Matsuoka is a new member in the forum. SandySaab is a new member in the forum.Abstract: Gate valve is a valve by lifting a barrier gate out of the path of the fluid.

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Gate valve helps in regulate or shut the fluid flowing in a pipe. In present work, parametric study on flow through gate valve is performed by setting five design points of gate valve lift. Mass flow rate and area weighted average velocity is calculated at the outlet of pipe for all design points. Water is considered as fluid flowing through gate valve. Gate valve: Gate valve is a valve by lifting a barrier gate out of the path of the fluid. Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened.

The gate faces can be parallel but are most commonly wedge-shaped in order to be able to apply pressure on the sealing surface. Parametric study: A parametric study is the exploration of relationships and tradeoffs between different design parameters and the result from the simulation of those design parameters.

By using a parametric study, designers can assess the impact that changing certain parameters can have on the design on their performance goals. The more design options you analyze in a parametric study, the more information you will have available to you to understand the impacts of your design decisions. The three dimensional geometry of the gate valve is shown below. In order to analyse the effects of gate valve lift on fluid flow varaibles, a longer flow region pipe has to be considered to the inlet and outlet of gate valve.

This is done by using pull option in spaceclaim in order to extrude the inlet and outlet geometry to mm further. The extruded geometry is shown in the figure below. Now, gate valve lift has to be set as input parameter of the parametric study. This is done by lifting the gate valve by 10mm first design point using move option and selecting the component Gate and axis along which gate valve has to be lifted z-direction.

After lifting the gate valve to 10mm, option [P] is selected in order to set the gate valve lift as the parametric study input parameter.

Now the fluid volume is extracted from the geometry by using volume extract option in the spaceclaim. The extracted fluid volume is shown in the figure below.

In order to visualize the gat valve lift and understand the path of the fluid flow, sectional view is shown for all five design points. Face sizing: Face sizing is done to all the faces of the gate valve in order to capture the flow near gate valve accurately. Pressure-based solver: The pressure-based solver employs an algorithm which belongs to a general class of methods called the projection method. In the projection method, wherein the constraint of mass conservation continuity of the velocity field is achieved by solving a pressure or pressure correction equation.

The pressure equation is derived from the continuity and the momentum equations in such a way that the velocity field, corrected by the pressure, satisfies the continuity. Since the governing equations are nonlinear and coupled to one another, the solution process involves iterations wherein the entire set of governing equations is solved repeatedly until the solution converges.Autonomous vehicle development is dominating the engineering landscape.

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Parametric study by just using Fluent

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fluent parametric study

Additionally, engineers can apply fault-tolerant meshes to nonconformal interfaces while performing a conjugate heat transfer simulation. Another user experience boost is that engineers can use the Fluent expression language with parameters, reports and monitors.

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fluent parametric study

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