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Questions related to Computational Fluid Mechanics
I'd like to conduct a test CFD (FSI) simulation of human heart. Thanks.
01 January 2017 2,634 5 View
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 3,945 12 View
Can anyone suggest me references for Carreau-Yasuda model for validation of fully developed Non-Newtonian flow inside a 3D Pipe ? I want to know the fully developed velocity profile.
12 December 2016 5,540 3 View
Hello, question as above. I am currently trying to simulate hydrodynamics of mixing liquids by the use of Venturi pipe. I struggle to find proper model and solving method for my problem, as I am...
12 December 2016 646 6 View
ANSYS supercritical methane in pipe bulk fluid temperature in XY plot
12 December 2016 7,629 1 View
In my two-phase flow problem, I create droplets in a 3D T-Junction geometry, periodically using VOF model. However I can neither track their trajectory nor their velocity? I'm looking for an easy...
12 December 2016 3,459 8 View
in 2D case, it starts from very large value and decreasing with time. For 3D case, it starts with negative value, increasing for few time and decrease again. i have checked my program. everything...
12 December 2016 2,922 4 View
I use finite difference with periodic BCs on a square domain to discretize the Poisson equation. This problem is underdetermined and I need one more equation to solve, eg a dirichlet condition at...
11 November 2016 5,076 13 View
08 November 2016 2,815 12 View
Hi, I modelled turbulent flow and heat transfer in a 3D pipe in Ansys-Fluent. During post-processing in CFd-Post, I need to obtain local heat transfer coefficient on inner wall. For that I need to...
30 October 2016 6,806 4 View
10 October 2016 9,185 5 View
hello everyone,I faced problem to compile my udf as shown below,I dont know what caused the problem in my udf codes until fluent unable to compile it. I also try to compiled other udf and it goes...
09 September 2016 6,589 6 View
Please help. Consider the case of a system made up of: A rectangular pipe of area A (breadth B and width W) and length L and open to ambient air (at STP: 101 KPa and 288K) at one end and...
09 September 2016 5,032 8 View
I've been conducting ball mill operation to reduce the size of Nano-Titania (TiO2) particles. Machine used: FRITSCH Planetary Ball Mill PULVERISETTE 7 with Sintered Corundum Cups and Corundum...
09 September 2016 5,690 3 View
I've found formulas to solve the pressure drop, but not necessarily the back pressure that would be seen if a gage were on the pipe. A combination of equations perhaps?
07 July 2016 7,395 4 View
Hello all, I'm implementing the Chebyshev collocation method for solving PDEs, more specifically the shallow water equations. I know the Chebyshev differentiation matrices (or differential...
07 July 2016 9,542 3 View
I went through your paper named ACTION OF VIBRATIONS ON HEAT AND MASS TRANSFER IN BOILING. by V F PRISNYAKOV AND K V PRISNYAKOV I have certain doubts: How should i calculate R cavity if i use...
06 June 2016 8,556 0 View
For gas-liquid vertical slug flow; 1. How can I account for the thickness of a liquid film for a Fluent VOF simulation? I mean I want to plot the thickness of liquid film versus the axial...
16 May 2016 2,262 3 View
I want to assign free outflow as boundary condition. I know that free outflow means stresses + pressure null. But i cannot specify pressure, I must leave it free to develop. Is it enough if I set...
12 May 2016 1,671 6 View
I want to design steam jet refrigeration system and i am facing deficity in design super sonic CD nozzle. can anyone give some guidance about how to start design designing for particular pressure...
07 May 2016 6,822 1 View
Two lubricants were tested using a four-ball tester: one is a mineral oil of 460cSt and the other is a vegetable oil. The coefficient of friction in case of mineral oil was found to be much higher...
05 May 2016 9,150 3 View
05 May 2016 8,362 7 View
05 May 2016 9,275 1 View
I canno't understand why higher pressure ratios are not applied to GTs in the 150 MW to 400 MW range. I assume that firing temperature is similar for both aeroderivatives (AD) and heavy duty (HD)...
23 April 2016 522 9 View