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Showing results 1 to 7 of 7 Search took 0.00 seconds. Search: Posts Made By: medaouarwalid

Forum: Main CFD Forum June 13, 2017, 08:01

Replies: 12 role of the time step in convergence criteria ! Views: 838 Posted By medaouarwalid I did pressure outlet at the walls of the room... I did pressure outlet at the walls of the room because the velocity near to it was close to zero, also the pressure was constant in the room (atmospherique pressure) , the inlet like i said is a...

Forum: Main CFD Forum June 13, 2017, 07:15

Replies: 12 role of the time step in convergence criteria ! Views: 838 Posted By medaouarwalid Balance between cell zize and velocity ? I didnt... Balance between cell zize and velocity ? I didnt hear this befor, can you explain to me ? Boundry conditions are simple in my case , i have a room of dimensions 2 meter heigh, 4meter length and 4...

Forum: Main CFD Forum June 13, 2017, 05:55

Replies: 12 role of the time step in convergence criteria ! Views: 838 Posted By medaouarwalid Why? I have the smalest size of the mesh is... Why? I have the smalest size of the mesh is 0,000875m, velocity is 7m/s so the recomanded time step will be less than 0.0001 . This time step will incrementes every time the solution converge ( in my...

Forum: Main CFD Forum June 12, 2017, 16:45

Replies: 12 role of the time step in convergence criteria ! Views: 838 Posted By medaouarwalid I am using a bounded secpnd order implicit... I am using a bounded secpnd order implicit fomulation + i found that best time step need to be less that ( min size/ velocity) , in my case it means less than 0.0001 !!! So to see the result of 1...

Forum: Main CFD Forum June 12, 2017, 12:04

Replies: 12 role of the time step in convergence criteria ! Views: 838 Posted By medaouarwalid Thank you, what i am learning from this forum is... Thank you, what i am learning from this forum is larger than what i learnd in my entire years of study . What a great forum

Forum: Main CFD Forum June 12, 2017, 10:12

Replies: 12 role of the time step in convergence criteria ! Views: 838 Posted By medaouarwalid please more details , How do I know in advance... please more details , How do I know in advance choose the right time step

Forum: Main CFD Forum June 11, 2017, 22:37

Replies: 12 role of the time step in convergence criteria ! Views: 838 Posted By medaouarwalid role of the time step in convergence criteria ! hi, excuse me for my questions, i am new in simulations, i'am using fluent to simulate an air jet, i use transient time study and K-epsilon model, when i set the time step to 0.0001s the solution...

Showing results 1 to 7 of 7

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