Siamak Vajdi

8 Questions 21 Answers 0 Followers

Questions related from Siamak Vajdi

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...

10 October 2018 9,350 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...

01 January 2018 1,144 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...

11 November 2017 10,030 5 View

COMSOL Multiphysics, Particle Tracking Module !?

Hello everyone, I am trying to simulate flow and heat transfer of a non-uniform nanofluid (Nanofluid properties changes with Phi (particle volume fraction)) in a microchannel. Is it possible in...

02 February 2017 4,578 2 View

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

Hello everyone,I am trying to simulate a laminar flow with heat transfer in a rectangular microchannel, but the problem is when I solve just the laminar flow everything (velocity, friction...

01 January 2017 3,939 12 View

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

Hello everyone, I have a simple problem but I don't know how to solve it. I have a laminar flow in a microchannel with water. Hydraulic Diameter of channel is 86.58micrometer and length of channel...

12 December 2016 7,486 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...

11 November 2016 3,603 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...

11 November 2016 2,088 6 View