Equilibrium calculation failed due to c2h species

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  • Last Post 28 February 2019
anilwakale posted this 20 February 2019

Dear all,

I am using non-premixed diesel unsteady combustion model for my research work. I am using Ansys fluent 18.1 for it. I am facing warning while using my mechanism in fluent . Although c2h species is present in the thermodynamic file, fluent simulation is showing warning error after initialization..please see the screenshots of simulations

  c2h species

Therm file

next 

The simulations were running using series mode and parallel mode using windows OS on fluent 18.1 version upto some time step later it shows 

999999: mpt_connect: error: connection failed:No error   I got this after 184-time step on windows OS fluent 18.1

 

while using the Linux platform the solution even will not start 

shows following error 

Linux error

Primary I got suggestions from Ansys student portal as follows 

Try by removing UDF: I tried: not solved the problem 

Try in Series: I tried: not solved the problem 

upgrade fluent to 18.2 : I tried : not solved the problem

Question rases: if the case is at least running 140-time step on Windows OS why its not running on Linux or even starting both in series or parallel mode 

Is there any suggestions to solve these problems

 

Thank you  

 

Best Regards, Anil Bhaurao Wakale|Research Scholar|Department of Mechanical and Aerospace Engineering|Indian Institute of Technology Hyderabad|Skype: anil.wakale| Ph: (+91) 9440671936

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anilwakale posted this 28 February 2019

C2H problem got solved. But running the same simulations on Linux was not solved 

Best Regards, Anil Bhaurao Wakale|Research Scholar|Department of Mechanical and Aerospace Engineering|Indian Institute of Technology Hyderabad|Skype: anil.wakale| Ph: (+91) 9440671936

rwoolhou posted this 28 February 2019

Check the UDF has been completely unhooked from the model, and also that all of the paths (if using external files/pdf) are correct. 

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