Mechanical

Uploaded on

02 Nov 2022

Skill-Lync

Meshes are primarily composed of two distinct entities: the geometry (the position x, y, and z of the nodes) and also the topology (how the nodes are connected).

A mesh may be a network that's formed of cells and points. It can have almost any shape in any size and is employed to unravel Partial Differential Equations. Each cell of the mesh represents a personal solution of the equation (all unknowns of equations) which, when combined for the entire network, ends up in an answer for the whole mesh.

Solving the complete region without dividing it into smaller pieces is impossible due to the complexity involved within the domain. Holes, corners and angles can make it extremely difficult for solvers to get an answer. Small cells, on the opposite hand, are comparably easy to unravel and so is the popular strategy.

- Below mentioned image shows the error pop-up:

Let’s understand it with the help of an example.

The component shown below has two parts included in it.

**Penetration: Intersections** **error** occurs during a volume mesh when you have defined volumes (Volume deck > Volumes > Define) of two parts together as a single Volume list.

Note: You can see a list of volumes defined by doing V.Mesh > Volume > List. (Refer to Figure 3).

This error may also come when there is a common surface for two different parts (i.e Triple CONS in the model) or if the surfaces of two components are very close together.

Now Right click on the selected ID 1 and select “Remesh”. (Refer Fig.4)

You will be able to see the error pop-up which shows the **Penetration: Intersections** error as Shown in Fig 1.

__________________________________________________________________________________________________________________________________________

Now let's solve the above issue by defining the volume for both part volumes separately.

**Step 1:**

- Define the volume for the inner separated part volumes as shown in Fig 5.

- Isolate one part alone in GUI

- Goto **Volume deck > Volumes > Define > Manual **

- Select the whole part

- On a middle click confirmation you will see a Property help window popping up.

- Then follow these steps to create a new PID for Volume: **Right click > New > PSOLID**

- You can see a window popping up which asks to enter the details of the PSOLID.

- Rename it and click **Ok**.

- Now you can see that a PSOLID Id is created on the Property help window.

- Double-click on the Id and the property will be assigned to that newly created PID.

- Now open the **Volumes > List **tab from the volume deck, you can see the following pop-up window.

- Right-click on the Id and select **Remesh**.

- You can see another window popping up where you can select the type of mesh generation algorithm.

- Select Tetra FEM and select **Ok**.

- Now if we check the Volumes > List, it shows the status as Meshed.

- Follow the same steps to mesh the other outer part.

Author

Navin Baskar

Author

Skill-Lync

Continue Reading

**Related Blogs**

Moving Frame of Reference

A Moving Reference Frame (MRF) is a very straightforward, reliable, and effective steady-state Computational Fluid Dynamics (CFD) modeling tool to simulate rotating machinery. A quadcopter's rotors, for instance, can be modeled using MRFs.

Mechanical

12 May 2023

Analysis Settings in Ansys Software

Analysis settings in Ansys are the parameters which determine how the simulation should run.

Mechanical

08 May 2023

Comparing the Explicit and Implicit Methods in FEA

In Ansys, the analysis settings play a very important role in converging the solution and obtaining the results. These involve settings about the timestep size, solver type, energy stabilization etc.

Mechanical

06 May 2023

Tensors, Stress, and 2D Meshing: A Primer for Beginners

A tensor is a mathematical object that describes a geometric relationship between vectors, scalars, and other tensors. They describe physical quantities with both magnitude and direction, such as velocity, force, and stress.

Mechanical

05 May 2023

Reynold's law of Similarity

The Reynolds number represents the ratio of inertial to viscous forces and is a convenient parameter for predicting whether a flow condition will be laminar or turbulent. It is defined as the product of the characteristic length and the characteristic velocity divided by the kinematic viscosity.

Mechanical

04 May 2023

Author

Skill-Lync

Continue Reading

**Related Blogs**

Moving Frame of Reference

A Moving Reference Frame (MRF) is a very straightforward, reliable, and effective steady-state Computational Fluid Dynamics (CFD) modeling tool to simulate rotating machinery. A quadcopter's rotors, for instance, can be modeled using MRFs.

Mechanical

12 May 2023

Analysis Settings in Ansys Software

Analysis settings in Ansys are the parameters which determine how the simulation should run.

Mechanical

08 May 2023

Comparing the Explicit and Implicit Methods in FEA

In Ansys, the analysis settings play a very important role in converging the solution and obtaining the results. These involve settings about the timestep size, solver type, energy stabilization etc.

Mechanical

06 May 2023

Tensors, Stress, and 2D Meshing: A Primer for Beginners

A tensor is a mathematical object that describes a geometric relationship between vectors, scalars, and other tensors. They describe physical quantities with both magnitude and direction, such as velocity, force, and stress.

Mechanical

05 May 2023

Reynold's law of Similarity

The Reynolds number represents the ratio of inertial to viscous forces and is a convenient parameter for predicting whether a flow condition will be laminar or turbulent. It is defined as the product of the characteristic length and the characteristic velocity divided by the kinematic viscosity.

Mechanical

04 May 2023

Book a Free Demo, now!

Related Courses

Recently launched

0 Hours of content

Cae Domain

Recently launched

0 Hours of content

Cae Domain

5

0 Hours of content

Design Domain

Showing 1 of 6 courses

Try our top engineering courses, projects & workshops today!Book a Live Demo