#وبینار
Join us Thursday, March 13, for COMSOL Day: Industrial Electrification to learn how simulation makes design and R&D in the electrification field more efficient.

At this online event, you'll have the opportunity to attend:

⚡️ Technical sessions covering applications such as e-motors and generators, power electronics, and high-voltage cables — as well as electric discharge modeling
⚡️ A keynote talk on how Siemens Energy Global's simulation of plasma–cathode interaction in vacuum arcs aids in the development of its vacuum interrupters

Learn more and register here:
https://www.comsol.com/c/gp2o
@comsol_shs

#معرفی_مقاله
Vignesh Gurusamy examines the importance of modeling and simulation in electric motor development for electric vehicles (EVs) in this insightful article.

High-power density and efficiency are essential for maximizing range, and simulation enables engineers to optimize motor performance while reducing development time. By integrating multiphysics modeling, designers can accurately analyze electromagnetic behavior, thermal effects, and structural dynamics to enhance reliability and efficiency.

This article further explores different motor types, including radial flux, axial, and linear motors, and details simulation approaches for each. Advanced techniques like time-periodic electromagnetics and electrothermal modeling help improve torque, minimize losses, and refine cooling strategies.

Read it here:
https://www.evengineeringonline.com/how-multiphysics-simulation-is-advancing-electric-motor-design/
@comsol_shs

#وبینار
4-Part Webinar Series for Acoustics in the Electronics Industry

Accelerate your electronic device R&D. 🔊📱🦻 Learn about using the COMSOL Multiphysics® software for analyzing acoustics coupled with other relevant physics in our 4-part webinar series. Register for one or more webinars via:
https://www.comsol.com/c/gp1u

Topics include:

1️⃣ Loudspeakers (March 25)
2️⃣ MEMS Speakers and Microphones (April 16)
3️⃣ Hearing Aids (May 6)
4️⃣ Piezoelectric Devices (May 20)
@comsol_shs

EM, and FVM along with their basic definitions in simple terms:

FDM (Finite Difference Method): Approximates derivatives using simple differences between grid points. It's like connecting dots on a regular grid.

FEM (Finite Element Method): Breaks down complex problems into smaller, manageable pieces (elements) and uses math functions to solve them, ideal for irregular shapes.

FVM (Finite Volume Method): Divides the space into small volumes and ensures that what goes in must come out, naturally conserving mass, energy, and momentum.

Whether you're diving into fluid dynamics or structural analysis, knowing these differences is key to choosing the right tool for your project!
@comsol_shs

#معرفی_موقعیت_تحصیلی
#کارشناسی_ارشد
#دکترا
#شیمی
#متالورژی
#آفریقای_جنوبی
معرفی چندین پوزیشن در لینک زیر توسط دپارتمان مهندسی شیمی دانشگاه Stellenbosch
جزییات پوزیشن ها و نحوه ثبت نام در لینک زیر:
https://chemeng.sun.ac.za/opportunities-2024/
@comsol_shs

#معرفی_موقعیت_تحصیلی
#پستداک
#عمران
#مکانیک
#کانادا
معرفی یک پوزیشن فول فاند توسط دانشگاه آلبرتا در حوزه هیدرولوژی
شرایط احراز و نحوه ثبت نام به شرح متن آگهی
@comsol_shs

Mesh Refinement and Effect of element size on Surface Capturing..

As a CAE Analyst you must make a balance between solving time and accuracy.

what do you think?
@comsol_shs

How to Define Load Cycles in Battery Models?

"When modeling a battery system, specifying a load profile is critical for accurately representing how the battery will operate in a real-world scenario."

🔋🪫 To capture the profile duration, variations, and cycle patterns, several methods are available in COMSOL Multiphysics and the Battery Design Module. Learn how and when to use each method with the model examples in this blog post:
https://www.comsol.com/c/gpag
@comsol_shs

🛠 Getting Started with CAE for Engineers

📊 When it comes to CAD (Computer Aided Design) and CAE (Computer Aided Engineering) simulations, these two tools are often confused with each other. So, how do they differ?

📚 Tips for Those Starting with CAE:
- Read first a simple book about mechanics to understand basic concepts (Stress, Strain, deformations, material curve, factor of safety, moment, force, pressure…).
- Begin slowly to familiarize yourself with verify simple types of analysis on which you have the theoretical solution (the plate with a hole for example).
- Download and install FEA software that is easy to use, but with enough advanced features at the same time.
- Begin with Linear Static Analysis, which is the analysis type the most easy to understand (but be careful to learn about all the hypothesis).
@comsol_shs

اولین دانشمند هوش مصنوعی مقالات علمی را منتشر کرد / ربات‌ها جایگزین پژوهشگران دانشگاهی می شوند؟

🔹 مؤسسه Autoscience از «Carl»، اولین هوش مصنوعی که مقالات علمی را با موفقیت در فرآیند داوری علمی پذیرفته کرده است، رونمایی کرد. موفقیت "Carl" در ICLR ۲۰۲۴، بحث‌های گسترده‌ای درباره نقش هوش مصنوعی در تحقیقات دانشگاهی و استانداردهای انتشار مقالات علمی به وجود آورده است.

asriran.com/004NIL

@MyAsriran

#وبینار

NGC is pleased to invite you to attend our presentation at the CWD & DSEC in Aachen, Germany, 11-12 March 2025.
Join us in today's world of innovative CFD software solutions. Find out how you can reduce your modelling times for highly detailed gearbox models with more than 500 moving parts while maintaining a high level of confidence. A new workflow developed at NGC Transmission Europe enables CFD engineers to save time and money through consistent automation, resulting in improved simulation-driven designs.

Lecture topic: High Detail System Level CFD-Lubrication Analysis of Wind Turbine Gearboxes
Lecture time: 2025-03-11| 14:50
Lecture held by: M.Sc. Martin Cardaun, NGC Transmission Europe GmbH (Duisburg), Engineering

Website: https://www.cwd-dsec.de, https://lnkd.in/gTFTPQ5u

@machinerylubrication

#معرفی_موقعیت_تحصیلی
#موقعیت_شغلی
#اسپانیا
#دکترا
فراخوان موسسه تحقیقاتی i2CAT واقع در بارسلون از دانش آموختگان برتر مقطع کارشناسی ارشد رشته های مهندسی، هوش مصنوعی، کامپیوتر، و... بمنظور مشارکت در انواع پروژه های تحقیقاتی این موسسه
برای آشنایی با ساختار و ماموریت سازمانی i2CAT، مراجعه به وبسایت زیر توصیه می شود:
https://i2cat.net/research-topics/
شرایط احراز:
Candidates must meet the minimum requirements for enrollment in a university PhD program, holding at least an MSc degree (or equivalent). Candidates who have been enrolled in a PhD program for more than six months at the time of application are not eligible to apply.

- Academic Qualifications: Strong academic performance is essential.

- English Proficiency: Applicants must demonstrate a proficient level of English.

- CV/Resume: The evaluation will consider various aspects of the candidate's background, including...

* Academic background

* Previous research experience

* Relevant work experience

* Publications

* Conference presentations

* Teaching experience

* Intellectual Property contributions

* Other notable achievements

- Personal Interview: Shortlisted candidates will be invited for a personal interview as part of the final selection process.

If you have any questions, contact us at the People & Talent Department (talent@i2cat.net).



> Requirements:

Applicants must submit the following documents in PDF format as part of the application process:

- Motivation letter (including research statement)

- Academic and professional CV

- Academic certificates

- Recommendation letter (optional)

- English certificates (optional)
ثبت نام و اطلاعات بیشتر در لینک زیر:
https://careers.talentclue.com/en/node/114850715/4593
@comsol_shs

🎯 How is the 𝐂𝐨𝐧𝐜𝐞𝐩𝐭 𝐨𝐟 𝐃𝐞𝐠𝐫𝐞𝐞𝐬 𝐨𝐟 𝐅𝐫𝐞𝐞𝐝𝐨𝐦 (𝐃𝐎𝐅) defined in Finite Element Analysis (𝐅𝐄𝐀)?

In FEA, Degrees of Freedom refers to the number of independent ways a node or element can move in a system. The DOF determines how the structure deforms under applied loads and boundary conditions.
@comsol_shs

✔️ DOF in Structural Analysis
⦿ In structural mechanics, DOFs are typically associated with displacements and rotations at each node:
⦿Translational DOF: Movement in the x, y, z directions.
⦿ Rotational DOF: Rotation about the x, y, z axes.

For example:
⦿ 1D elements (Beam, Truss): Can have 1 to 6 DOFs per node depending on the type.
⦿ 2D elements (Shells, Membranes): Typically have 3 to 6 DOFs per node.
⦿ 3D elements (Solid elements): Usually have 3 DOFs per node (translations in x,y,z).

✔️ DOF in Different FEA Elements
⦿ Truss Element - 3 (Translation in x,y,z)
⦿ Beam Element - 6 (Translation + Rotation in x,y,z)
⦿ Shell Element - 6 (3 Translation + 3 Rotation)
⦿ Solid Element (3D Brick/Tetrahedral) - 3 (Translation in x,y,z).

✔️ Importance of DOF in FEA
⦿ Determines the stiffness matrix size.
⦿ Affects computational complexity.
⦿ Governs the accuracy of results (more DOF = higher accuracy but increased computation time).

✔️ How DOF Affects Stiffness Matrix Size
⦿ The total number of DOFs in the system (n) is determined by:
n = (Number of nodes)×(DOFs per node).
Since the stiffness matrix is always square, its size is: (n×n)

✔️ Why 3𝐃 𝐒𝐨𝐥𝐢𝐝 Elements Have 𝐓𝐡𝐫𝐞𝐞 𝐓𝐫𝐚𝐧𝐬𝐥𝐚𝐭𝐢𝐨𝐧 DOF ?

💡 3D solid elements, such as tetrahedra and hexahedra, have three translational DOFs per node (X, Y, Z) and no rotational DOFs. They capture material deformation using displacement gradients, making explicit rotational DOFs unnecessary. Rotational effects emerge naturally within the strain tensor. Unlike beams or shells, solid elements model bulk materials where deformations like stretching, compression, and shear are fully described by translations.

💡 The stress-strain relationship is computed through nodal displacements, ensuring accurate structural behavior representation. Since solid elements lack thin surfaces or rotational axes, bending and twisting are indirectly captured as internal strain variations within the material.

@comsol_shs

The Level Set Method is a powerful numerical technique in COMSOL Multiphysics® for tracking moving interfaces in fluid flow models, particularly for multiphase flows where the interface evolves over time. This method effectively captures complex interface dynamics, including merging and splitting of fluid domains, which are often difficult to model using traditional mesh-based approaches.
👇🏻👇🏻👇🏻

@comsol_shs

In this approach, a level set function (φ) is defined over the computational domain to distinguish between different fluid phases—typically assigning 0 to one phase and 1 to the other, with a smooth transition across the interface. The interface is then represented by the 0.5 isocontour of this function.

The governing equation for the Level Set Method is:

∂φ/∂t + u · ∇φ = γ∇ · (ε∇φ - φ(1 - φ)∇φ/|∇φ|)

Where:

φ is the level set function,

u is the velocity field,

γ stabilizes the interface thickness, and

ε controls the transition region's thickness.


Application: Oil-Water Separation

One of the significant applications of the Level Set Method in CFD modeling is the separation of oil and water in multiphase flow systems. In industries such as petroleum refining, wastewater treatment, and offshore oil production, efficient phase separation is crucial.

By implementing the Level Set Method in COMSOL, engineers can: ✅ Model oil droplet coalescence and separation in gravity-based separators,
✅ Analyze the effect of flow velocity and interfacial tension on separation efficiency,
✅ Optimize separator design for improved performance in real-world applications.

With COMSOL Multiphysics' dedicated Level Set interface, users can define parameters, specify velocity fields, and set boundary conditions (such as inlets, outlets, and symmetry planes) to replicate real-world separation processes.

For practical guidance on setting up two-phase flow models using the Level Set Method, the "Two-Phase Flow Modeling Guidelines" in COMSOL’s Learning Center provide valuable insights.
@comsol_shs

#معرفی_کتاب
Welding Simulations using ABAQUS: a Practical Guide for Engineers_2022
👇🏻👇🏻👇🏻
@comsol_shs

شبیه سازی نحوه حرکت روغن چرخدنده بین فضای دندانه های یک گیربکس با توسل به آباکوس
شبیه سازی یکی از بهترین و ارزانترین روش های تست مجازی سیستم های طراحی شده مکانیکی است که در مدیریت هزینه های سنگین ساخت و تست نمونه اولیه سیستم های پیچیده ایی چون انواع گیربکس جلوگیری می کند.
به جزییات کار که توسط Santiago Garcia O'Regan ارائه می شود در طول ویدئو توجه کنید.
@machinerylubrication

#وبینار
CFD Modeling with COMSOL® in 18 Minutes

Join us on March 18 for an 18-minute webinar on the basics of CFD modeling. The webinar will also include a live demo of modeling a water treatment basin in the COMSOL Multiphysics software. To register, visit:
https://www.comsol.com/c/ggsb
@comsol_shs