Questions tagged [ansys]
Anything related to ANSYS, the CAE/multiphysics engineering simulation software for product design, testing and operation.
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How to determine the performance index M for the outer vessel of a vacuum bottle? Need help with objective and constraint selection (Ashby diagrams)
I'm reaching out for assistance and advice regarding a problem I'm encountering in my thermal bottle analysis. I have been attempting to determine the performance index M but facing significant ...
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Hexamesh of a helical coil in ICEM CFD
I am trying to mesh a helical coil segment in ICEM CFD. My approach is to create a 3d block at the start of the geometry, and then extrude it along the center curve:
However, when I do this I end up ...
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Why the mode frequency is approximate in modal analysis?
I have used the Ansys workbench to carry the modal analysis of one motor stator and under the free modal analysis, the first 6 mode frequency are all zero, it is ok because of the first 6 mode does ...
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Determine shockwave location in Ansys Fluent
how can I find the shockwave location in Ansys fluent for an aerofoil please?
I couldn’t see a shockwave location option in the plots but I’ve seen it being plotted in papers, so it must be possible?
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Converting data from Chaboche material model from ABAQUS to ANSYS
How to minimize differences when using Chaboche model in ABAQUS and in ANSYS.
For example as I've noticed – in ABAQUS one has rate-dependent plasticity model, but in ANSYS it is rate independent ...
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In Ansys ICEM CFD, what do these "cube" symbols on the midpoint of block edges mean?
When I was meshing a helical coil, I've noticed these "cube" symbols located at the midpoint of a the block's edges:
Blocks with these symbols tend to have a lot of strange/unpredictable ...
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Preparing data for Chaboche Model in ANSYS
Can i transfer somehow my hysteresis data to ANSYS Chaboche model if the hystereses are not connected? How to properly defined it in ANSYS if I have Ramberg-Osgood prediction equation? What should I ...
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Sharp Edged Pipe with Negative Pressure
I want to calculate the 2D pipe flow with sharp edged contraction pipe (below figure). The fluid is water, the model is steady state k-epsilon. The boundary condition is velocity inlet (8.47ft/s = 2....
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How to set FLUID220 elements to PML in Ansys Mechanical (APDL command)
I am working on an acoustic simulation in Ansys Mechanical (2022 R2). I want to set a volume to Perfectly Matched Layers (PML) to inhibit reflections and absorb all incoming acoustic energy. As I am ...
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Display Pressure coefficient for multiple points at across the span line of an airfoil in fluent
Learning to use ANSYS Fluent as part of my computational engineering course I have previously modelled a 2D wing and been abled to XY plot for the pressure coefficient against x coordinate.
my ...
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Which ANSYS modules do we need if we want to do the coupled simulation of motor?
There are more than electromagnetic field in real motor running, for example, the electromagnetic field will couple with temperature field and the fluid field of cooling fluid will affect the ...
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Ansys: Transient Thermal Analysis using Step Selected Element Birth and Death
I am trying to model the 3d printing process, where one bead of filament (represented by one element) is printed at a time. To do this, I am creating a geometry of 3 cube elements (block1, block2, and ...
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Mesh convergence and its affect on results
Let’s say I had a mesh with 10000 nodes, then made another with 13000 nodes, why would the finer one give me slightly different results to the other even if it appears like results converged?
Also, ...
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What is the best way to simulate residual moisture evaporation off of a polymer sheet in Ansys Fluent (or something similar)
I will provide more information. I am trying to simulate residual moisture evaporation off of a polymer (let's say a thin film). I tried using VOF model but I do not see an option that allows me to ...
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Pressing a fluid onto a structure in ANSYS Fluent
I have a spefific problem which I tried to solve with Ansys Fluent and Transient Structural but I did not manage to get a solution so far. I am happy for any kind of help.
I want to press a block of ...
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Get Node Numbers to Variable
I am using Andys APDL.
I want to create Beam Element by entering Node numbers.
Nodes numbers selection is through option “by location“
Then I don’t know how use them in element creation command i.e. E,...
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Deleting pinned datum points in Ansys SpaceClaim
In Ansys SpaceClaim, "pinned" datum points/axes seem to be automatically created when switching to sketch mode with enough features selected to create what amounts to a coordinate system (...
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Employing a deforming mesh, inlet, and no shear wall in ANSYS
I am interested in running a simulation in ANSYS Fluent (or CFX, whichever is more useful) that combines the following.
Update:
A rotating wing in the air, similar to a turbine blade. After ...
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How to determine time taken for tyre to deflate using CFD analysis?
I am working on my final year project, and am at a point which requires us to deflate a tyre in 0.8 seconds. This needs to be simulated using CFD. We have drilled a hole into the rim and attached a ...
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Non-Linear Analysis Convergence Problem in Ansys
I am currently conducting a static structural analysis study in Ansys and encountered convergence prolems.
I have a very large thermal gradient (almost 600°C) as input from a precedent transient ...
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Is it possible to extract the prescribed boundary condition and its nodal coordinates in Ansys Mechanical?
Let's say I have 3 boundary conditions and I want to extract the nodal coordinates and the boundary condition value for each boundary condition separately.
I tried Ipython scripting and pyAnsys but it ...
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Ansys Mechanical Modal analysis, Parametric materials, mode shape output for each parameter?
I am trying to match FEA results with an experiment, wherein I need to match mode shapes and frequencies. I am testing different models, and I would like to parameterize several material properties.
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Workbench Ansys Mesh Convergence study
Is it possible to perform a mesh study using Ansys?
So I want to change the mesh size, and show the effect of this on my solutions, any suggestions?
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Ansys Parameter Editor max characters
I am currently working with the Ansys design modeller and I have a rather complex geometry. In order to compute the required variables for my geometry, I have a very long expression inside my ...
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Ansys SpaceClaim parameter study
i am working on my bachelor thesis and I am supposed to do a parameter study within ansys SpaceClaim. Basically I have a cross sectional geometry (on paper) and need to do the following steps:
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Why am I getting an ever increasing value of power co-efficient (Cp) with the increase of TSR in Vertical axis wind turbine simulation?
I am trying to get the bell-shaped Cp vs TSR graph in my 2D simulation of the H-Darrieus vertical axis wind turbine (using a sliding mesh model). However, I am always getting an ever increase of Cp ...
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How to automate "Clear Generated Data" and "Solve" actions in Ansys WorkBench?
Using Mechanical, there is automation and I can record the process, but what I wanted to do is that for it to first clear the generated data, then proceed with solve (whole model - two steps). It ...
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Vacuum effect in ansys
May i define vacuum as a negative pressure in ansys? This boiler tested for vacuum of 1520mbar.
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What is meant by Solid Mesh and Surface Mesh? [closed]
Solid Mesh vs Surface Mesh, which method should I choose in simulation studies. What is the geometry behind these meshes. Which mesh gives accurate results?
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How to determine the stability of an aerodynamic shape in ANSYS Fluent
I have the aerodynamic outer mold line file of a drone. The first task of the school project is to verify that the drone is stable. First, I used the 2021R2 version of ANSYS Fluent to try to find the ...
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Why am I seeing a moment reaction at the supports for these beams in FEM?
Please observe the Finite Element model below, in ANSYS WorkBench, (Remote force behavior = Deformable).
Also, please take a lot at the force and moment reactions at the fixed supports.
I couldn't ...
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Homogeneous magnetic field inside aperture of PCB
I need to create a homogeneous magnetic field of a certain strength across a 10mm diameter opening of a PCB by using a current track on said PCB around the opening. The signal sent through the ...
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Why should I use a contact between two glued bodies in FEA when I can directly merge the mesh nodes between them?
So I am using ANSYS to conduct a FEA analysis. I have two options to built a connection between two bodies; first is I can use a contact (like bonded) between the touching faces and the other option ...
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FEA Simulation of CHASSIS [closed]
What are the most accurate methods in static state for simulation of chassis wrt 4 cases: lateral bending, torsion, head on collision and a zero turn. The problem arises when it comes to applying the ...
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How to export 'simplified' geometry from Simulation workspace in Fusion 360 to ANSYS Mechanical?
I would like to export the defeatured version of my design to ANSYS.
I tried adopting the following methods but they weren't working out.
(https://forums.autodesk.com/t5/fusion-360-design-validate/...
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ANSYS: Why do I have a choice of choosing TOP/BOTTOM under contact/target shell faces?
When ever I try to use a surface to surface contact, i.e. 2D shell elements to 2D shell elements, under the option Contact/Target shell face, either I can pick TOP or BOTTOM. Why is that? How is that ...
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Velocity inlet boundary condition in Ansys Fluent
Ansys Fluent offers a very simplified version of boundary conditions. So if I know the velocity at the inlet, I need not care about pressure and vice versa.
What I am having trouble with is that I ...
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UV radiation simulation in ANSYS
I am setting up a simulation in fluent to estimate the UV radiation dosage of an air stream passing through a cylindrical duct with the UV source in line with its main axis. It is a very simple system,...
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Deformation and stress in moment of hit (Ansys)
This how task goes: i need to find deformation and stress of piston in moment of hit between piston and tool (tool is stationary). Velocity of a piston is (5-7 m/s) and forces are in picture below.
I ...
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Ansys Fluent - Turbulent model and mesh
I am currently working on a project that involves CFD simulation on ANSYS and i need some help as it has got me stuck. I am designing a faucet atomizer and it's functioning is similar to a nozzle.
I ...
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Solution diverges for Converging-Diverging Nozzle
I am trying to run a CFD simulation for an ASTAR nozzle but cannot get the solution to converge.
These are the steps I took to try and run the simulation. I made the geometry in Solidworks and ...
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Airfoil meshing using ANSYS
Logged in a little time ago i have a new question. So I am trying to mesh an arifoil geometry using ANSYS meshing. Airfoil number is NACA 84-M profile. Running 2-D simulation my main objective is to ...
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Using GPU Acceleration in ANSYS Mechanical
I am attempting to solve ANSYS mechanical (via workbench) using GPU acceleration, but I keep getting the following error:
* WARNING * CP = 79.594 TIME= 15:40:08
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How do I import an .inp and an IGES together into Ansys workbench?
I have an .inp file of Ansys that is basically a mesh, that could be imported into Ansys APDL and converting to .cdb file.
But ...
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Are the Beam elements created from a 3D polyline in Ansys SpaceClaim also 3D in their DOF?
I have created a 3D polyline and assigned a Beam profile to it. But I don't get the results from my Explicit analysis where this beam is in contact with a shell surface. I am afraid that the Beam has ...
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How do I add the nodes' IDs and locations that are situated on a helix in space to a set in ADPL?
I have a beam structure in the form of a Helix. How do I add the nodes positioned on this helix using ANSYS APDL ?
I need to add the locations and IDs in separte sets.
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How to create RBE2 between the end edges of a cylinder and end nodes of a beam element in ANSYS APDL?
I have a cylinder with shell mesh. on its axis I have a beam with the same length of the cylinder. I want to create an RBE2 between each end edge nodes of the cylinder and the corresponding end node ...
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ANSYS Design Modeller more significant figures
I need to just get the volume from ANSYS Design Modeller but I would like a higher number of significant figures rather than just 5 (See picture).
How do I do this?
Thank you for your help!
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Direct Optimisation - How to Create Time Efficient Study
I made a simulation of this cylinder that is being suspended mid air and held up by 8 rods, 4 on top and 4 on the bottom. The entire model is cooled to 15K
I managed to find the forces required for 6 ...
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Flow Simulation for Laminar Flow in Annular Gap?
Would anyone be able to run an air flow simulation through the following geometry at 100 cc/min? I'm curious if any dead spots occur and if the geometry of the annular gap will produce laminar flow.
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