Is there any other way to find Heat Transfer Coefficient in COMSOL Multiphysics?

Hi every one, Is there any other way to calculate Heat Transfer Coefficient in the COMSOL Multiphysics? I use the expression below but I don't get much good results as...

09 October 2018 9,300 0 View

COMSOL, How can I get the correct answer?

Hello, I want to solve the simplest form of my project (Attached) but the velocity in the length of channel in not constant, and the temperature at outlet comes 36Celsius degrees (309K) but it...

31 December 2017 1,085 5 View

COMSOL, how is it possible to enter an expression as a variable in PDE?

Hello, How is it possible to enter an expression as a variable in PDE? I am using Coefficient form PDE and I have my PDE equation attached. I have Material properties dependent on Cv and T defined...

10 November 2017 9,910 5 View

COMSOL problem, Laminar flow + Heat transfer? why adding heat transfer affects laminar flow?

31 December 2016 3,813 12 View

COMSOL, Problem in solving laminar flow (finding entrance length)?

11 December 2016 7,158 17 View

How can I couple 2 temperatures in different physics in COMSOL!?

Hi How can I couple 2 temperatures in different physics!?I have laminar flow and heat transfer in fluids Modules and one extra PDE Eqn. I want to have the same Temperature in both PDE and Heat...

10 November 2016 3,491 4 View

COMSOL Multiphysics problem: How is it possible to couple 2 temperatures in different physics!?

How can I couple 2 temperatures in different physics!? I have laminar flow and heat transfer in fluids Modules and one extra PDE Eqn. I want to have the same Temperature in both PDE and Heat...

10 November 2016 2,040 6 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

How much pressure we can reduce at the outlet to avoid Reverse Flow?

I am simulating Heat Exchanger. I have tried and tested all the methods to resolve this issue from the internet like refining mesh, improving skewness and orthogonal quality ,extending outlet to...

01 March 2021 6,985 3 View