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Layanan resmi Bca 24 Jam Kontak Cs 08218520118

Sat, 07 Nov 2026 09:15:20 +0000

BCA KCU KEBAYORAN BARU Jl. Melawai Raya No.Blok B, RT.7/RW.5, Kramat Pela, Kec. Kby. Baru, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12130

Alamat resmi BCA KCU SUDIRMAN (+62) 8218520118

Sat, 07 Nov 2026 09:09:50 +0000

Jl. Jenderal Sudirman No.21, RT.10/RW.1, Kuningan, Karet Kuningan, Kecamatan Setiabudi, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12920

BCA KCU KUNINGAN Tlpn 0821-8520-118

Sat, 07 Nov 2026 08:49:25 +0000

Gedung Menara Karya Ground Floor, Jl. H. R. Rasuna Said No.Kav. 1-2 Blok X-5, RT.1/RW.2, Kuningan, Kuningan Tim., Kecamatan Setiabudi, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12950

BCA KCU MENARA BIDAKARA 0821~8520118

Sat, 07 Nov 2026 08:48:03 +0000

Menara Bidakara, Jl. Gatot Subroto No.Kav.71-73 Lt. Lobby dan Lt. 1, RT.1/RW.1, Menteng Dalam, Kec. Tebet, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12870

BCA KCU WISMA MILLENIA TLP/WA 0821-8520-118

Sat, 07 Nov 2026 08:46:11 +0000

Jalan Letjen M.T. Haryono No.Kav. 16 11, RT.11/RW.5, Tebet Bar., Kec. Tebet, akarta Selatan, Daerah Khusus Ibukota Jakarta 12810

BCA KCU BLOK A CIPETE ?0821~8520118

Sat, 07 Nov 2026 08:35:45 +0000

PQHX+93W, Jl. RS. Fatmawati Raya No.6 A, RT.1/RW.5, Cipete Sel., Kec. Cilandak, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12410

BCA KCU THAMRIN ?0821-8520-118

Sat, 07 Nov 2026 08:30:21 +0000

Menara BCA, Grand Indonesia, Jl. M.H. Thamrin No.1, RT.1/RW.5, Menteng, Kec. Menteng, Kota Jakarta Pusat, Daerah Khusus Ibukota Jakarta 10310

BCA KCU Cibubur ?(0821)8520118

Sat, 07 Nov 2026 08:26:04 +0000

Jl. Alternatif Cibubur RT.005/09. Kel. Harjamukti, Cibubur, Kec. Cimanggis, Kota Depok, Jawa Barat 16454

BCA KCU MATRAMAN ?0821-8520-118

Sat, 07 Nov 2026 08:21:32 +0000

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BCA KCU MATRAMAN ?0821~8520118

Sat, 07 Nov 2026 08:16:55 +0000

Jl. Matraman Raya No.14-16, RT.2/RW.1, Kb. Manggis, Kec. Matraman, Kota Jakarta Timur, Daerah Khusus Ibukota Jakarta 13150

D2W simulation

Wed, 04 Nov 2026 08:12:11 +0000

Hello!

I am currently trying to modify the official COMSOL die-to-wafer (D2W) bonding example. In my modified model, I have increased the thickness of the upper die to match the thickness of the lower wafer, while keeping all other physics settings unchanged.

So far, I have performed parametric sweeps of the initial warpage, bonding time, and downward displacement. However, the bonded area remains very small in all cases.

My question is: How can I modify the model to ensure that the upper die, after increasing its thickness, can undergo the same bonding process as in the original model with the thinner upper die? Are there any additional adjustments needed to the physical settings, boundary conditions, contact definitions, or solver configurations to account for the increased thickness and bending stiffness?

I would greatly appreciate any suggestions or guidance. Thank you very much for your time and help!

Request a Trial

Sun, 01 Nov 2026 17:19:19 +0000

Can you provide me with a trial code so I can test it out and see if it's suitable for my project?

Finding Quality factor for a Photonic crystal cavity

Thu, 29 Oct 2026 15:20:27 +0000

I have to find the Quality factor for a GaAs Photonic crystal cavity...Please give steps...Also give some techniques to improve quality factor in the range of 45,0000...

Using Heat Release Rate (HRR) vs. Temperature-Time Curve as Input

Mon, 26 Oct 2026 21:01:51 +0000

Hello,

I am modeling a fire scenario in COMSOL and have the fire defined by a Heat Release Rate (HRR, kW) versus time curve. Is it possible to use an HRR-time curve directly as an input in COMSOL? Can a tabulated HRR-time function be imported and used directly as a time-dependent heat source? My objective is to model the thermal response of a structure subjected to a fire characterized by a measured/design HRR-time history. Any guidance or example models would be greatly appreciated. Thank you.

How can I better represent the weld spots of a pillow plate heat exchanger in a 2D CFD model

Wed, 21 Oct 2026 08:46:12 +0000

Hey all,

I am currently working on a fluid flow simulation of a pillow plate heat exchanger, see link. I have a 3D model of a segment of the pillow plate to study the flow pattern inside the channel. Since the 3D geometry is quite complex and has a long simulation time, I decided to develop a simplified 2D model. I understand that a 2D model cannot capture all the three-dimensional flow effects, but I have managed to get reasonably far with the simplification.

However, I am still struggling to reproduce the flow pattern around the weld spots. When I compare the velocity fields in the xy-plane of my 3D model with those of my 2D model, I notice that the flow in the 3D model is considerably more constricted around the weld spots. I suspect this is caused by the interaction between the weld spot geometry and the wavy channel walls.

So my question is, is there a way to represent the effect of the weld spots more accurately in a 2D model? Maybe a COMSOL setting or a modification in the model?

Thank you in advance!

Adding Sheet Resistance in COMSOL

Mon, 19 Oct 2026 04:26:55 +0000

Hi, I want to add Sheet Resistance (600 ohm) for A FSS Layer (Microwave region) in COMSOL to replicate the simulated & Experimental Result of a particular Paper. I have searched in Google about the provision to add Sheet resistance. It suggests me to use transition boundary condition(using conductivity and approximate thickness) or surface current density for the FSS layer, However it is not replicating the experimental and the simulated result of the paper. Am i doing something wrong. Is there any other boundary condition i must use to replicate the result ?. The paper uses CST for simulation.

Potential Error in the Electrostatic Force Expressions – Taylor Cone Model

Sun, 11 Oct 2026 07:00:26 +0000

Dear COMSOL Support Team, dear Forum,

I identified a potential error in the “Taylor Cone” application model (Application ID: 3828), which couples Electrostatics, Laminar Flow, and Level Set.

In this model, the volumetric electrostatic force components are defined as follows:

Radial component:

Fes_r = 0.5(es.Er^2+es.Ez^2)epsilon0_const(1+(er_liq-1)philsr)

Axial component:

Fes_z = 0.5(es.Er^2+es.Ez^2)epsilon0_const(1+(er_liq-1)philsz)

However, phils represents the dimensionless Level Set function, while philsr and philsz correspond to its spatial derivatives with respect to r and z, respectively. These derivatives therefore have units of m⁻¹.

Consequently, the terms (1+(er_liq-1)philsr) and (1+(er_liq-1)philsz) are dimensionally inconsistent, since they involve the addition of a dimensionless constant and a quantity expressed in m⁻¹.

Furthermore, assuming a perfect dielectric system without free electric charges, the volumetric electrostatic force derived from the divergence of the Maxwell stress tensor should be:

Fes = −0.5 E² ∇ε

With the relative permittivity interpolated using the Level Set function as:

εr = er_liq + (1-er_liq) phils

With phils = 0 in the liquid and phils = 1 in air (as proposed in the Taylor Cone Model). Thus, the corresponding force components should therefore be:

Fes_r = 0.5(es.Er^2+es.Ez^2)epsilon0_const(er_liq-1)philsr

Fes_z = 0.5(es.Er^2+es.Ez^2)epsilon0_const(er_liq-1)philsz

These expressions are dimensionally consistent and correspond to volumetric forces expressed in N/m³.

Could you please confirm whether the original expressions contain an error or whether a specific formulation or assumption justifies their use?

Since these forces directly influence the deformation of the liquid–air interface and the resulting Taylor cone geometry, such an error could potentially affect the simulation results.

Thank you in advance for your clarification.

Best regards,

EMAT webinar example reproduction

Fri, 09 Oct 2026 19:44:57 +0000

Hi everyone,

I am trying to reproduce the electromagnetic acoustic transducer example presented in this webinar : https://www.comsol.com/video/modeling-nondestructive-testing-methods-in-comsol-multiphysics I do not have access to the comsol file so I have reproduced the file from the video. The results are not adequate and I do not really know what is causing that : the solid mechanics quantities such as displacement are 0 everywhere. I am not used to multiphysics problems in comsol.

I have attached my file if needed.

Sarah

Using material properties for parameters, variables, functions

Fri, 09 Oct 2026 09:11:23 +0000

Hello,

I use a 2D model with AC/DC module and Magnetic Field interface. I would like to use some material properties to define the geometry, clearly I wish to use the skin depth to define the dimensions of a coil. What I usually do is copy the material property (here copper) in the parameters of Global Definition so I can also define delta = 1/sqrt(pi * f * mu * sigma). Is there a way to get mu and sigma directly from the material without having to create some fixed parameters ? I am open to any solutions that allow using delta in the geometry.

Thank you :)

Sarah

Same transitional flow model runs fine in COMSOL 6.1 but crashes in COMSOL 6.3

Thu, 08 Oct 2026 02:16:46 +0000

Hi everyone, I’m running into a version-related issue with COMSOL. A transitional flow model that simulates successfully in COMSOL 6.1 crashes when simulated in COMSOL 6.3. The geometry, mesh, physics settings, and solver configuration are essentially the same; the main difference is the software version. The computer configuration is as follows： CPU: Intel(R) Xeon(R) Gold 6246R CPU @3.4GHz GPU: NVIDIA RTX A6000