How to simulate combustion in diesel engine?

When i am proceeding in Run calculation in Ansys Fluent, it shows "Run Cannot be started until Validation issues are resolved " What it means? and how to resolve this issue?

Hello everyone!

I'm doing CFD propeller marine. But I am errored. Can you help me?

Error at Node 0: floating point exception

Error at Node 1: floating point exception

Error at Node 2: floating point exception

Error at Node 3: floating point exception

Error at Node 4: floating point exception

Error at Node 5: floating point exception

===============Message from the Cortex Process================================

Compute processes interrupted. Processing can be resumed.

==============================================================================

Error: floating point exception

Error Object: #f

Registering ReportDefFiles, ("C:\kp_files\dp0\FFF\Fluent\.\report-file-0.out")

Calculation complete.

Hi there,

I'm working 2D axisymmetrical pipe groove (CFD) model with constant wall temperature. During the hybrid initialization, I have a non-positive element error along with a floating point exception. I believe I'm missing something. Any suggestions would be really helpful?

Thank you

Good afternoon,

I am currently simulating a combustion in CFD on ANSYS FLUENT and I am trying to get the best mesh possible out of this geometry. It is a rather simple one, with four inlets that lead to the combustion chamber. My question is, since I am quite new to ANSYS, what is the best way to mesh this geometry? Of course the inlets will have to be more refined than the rest of the mesh but I was asking the best methods to approach this. I am having trouble meshing the inside of the furnace because I am always getting really insconsistent tetrahedral cells.

Thank you very much.

Which processing method should go to the solution serial or parallel processing in fluent solver.

Hello,

I have been trying to model the flow over a hollow cylinder (diameter = 24 mm) on ANSYS Fluent. Now most publications I come upon seems to work in a much lower Reynolds number range (below 300). However, my particular research application has application in a Reynolds number ranging from 20,000 to 40,000. Now I need to know which viscous model do I need to select so that it is properly able to produce result for my application (like SST k-omega and so on). Also, an expert on this topic can also help me with the parameters associated with the viscosity model that needs to be given input. Thank you.

Hi, I am simulating a 60 degree sector mesh of diesel combustion in FLUENT and I need some help on plotting the graph for the heat release rate or rate of heat release as I could not seem to find a way to plot it under the "report plot" section.

Thank you in advance.

I am facing a problem during the simulation of a file mesh 6.7 millions , i simulated a file files smaller than it and didn't encounter this problem. I wanted to know what is the procedure?

Is there a way to overcome this problem?

My Computer: i7 4th generation with 8 gb Ram.

Thank you all.

Hello friends, I want to add magnesium as fuel in Fluent. However, there is no magnesium as a chemical reaction. How can I add the reaction scheme of this. I want to create a gas-oxygen and magnesium combustion reaction.