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Questions related from Parag Patil
I have a tube with a fixed inside thickness. Now, I want to change thickness of some part of this tube to X mm and some part to Y mm. Rest of the part has no change. Moreover, the parts of...
03 March 2019 7,763 3 View
I recently saw an example of water-hammering effect example of COMSOL Multiphysics. The example shows that the sudden closing of a valve produces pressure-shock through out the pipe upstream to...
01 January 2019 1,519 3 View
I'm simulating a shell and tube heat exchanger in comsol . I am plugging some of the tubes within the structure to see its effect on del.P and temperature. When I plug 18 of 19 tubes, and one...
10 October 2018 9,884 4 View
Dear all, I want to know about the wall lift off in CFD simulations What's it's significance and why they are different in FEM and FVM? Moreover, if it only depends on meaning, then why in...
09 September 2018 4,873 0 View
I have a doubt: A : 1. If a parameter value (say 'x = 100 ') is changed in model via Matlab-Livelink (via Matlab coding) 2. model is run. After it, B : 1. Again the paramater value is changed...
08 August 2018 6,400 0 View
I have simulated a heat-exchanger in COMSOL. The same heat-exchanger is simulated (with the exact geometry ) in Aspen Plus. I'm facing following problems in above: 1. The results of Aspen Plus...
07 July 2018 6,086 0 View
I have a shell and tube heat exchanger (1-1 pass ). It has shell of 250 mm ID and tubes of 50 mm ID (# 19). Length is 500 mm. I want to know the time-constant for this heat-exchanger (approx....
06 June 2018 1,215 0 View
Hello, I want to add an external material to the COMSOL for simulation. How can we do it? thanks.
05 May 2018 4,119 0 View
Dear all, I want to use the S-function in Simulink to connect it to COMSOL. I am able to use the Livelink and can import COMSOL model to MATLAB and can access the results. But my problem is as...
04 April 2018 9,725 1 View
Dear all, I am trying to connect a function-file in MATLAB to Simulink via 2nd level S-function. But I have a global variable defined in my function file. Can anyone let me know, how to declare...
04 April 2018 1,396 3 View
Dear all, I am trying to co-simulate a chemical process in two-different environment. One is Aspen Plus and another is an CFD based simulator. The process has different units to be simulated in...
03 March 2018 4,547 4 View
I want to use the COMSOL model in Simulink. For this, I am exporting the model prepared in COMSOL into .m format. However, I am trying to understand , how to use this .m file into S-function....
03 March 2018 1,038 2 View
Happy New Year to all of you! I have a doubt as follows: I want to use the NOISE-BLOCK to add the white noise in the stream in the simulation. When I add the noise block, the simulation does...
01 January 2018 9,439 3 View
