Hi Something with the numbers doesnt seems right for me.. You are doing here simple 5M elements analsys and running it for 1666 min? That is 28 hours. On 96 cores? I assume this is k e model. Isnt it suppose to be much faster?
I agree with you! I do not think the CO was modeled in this simulation. The CO PPM graphs magically appeared. What he analyzed was the velocity of air. Increasing air velocity everywhere randomly is not the way to solve such ventilation problem. I would model several inlets and set their CO volume flow rates to match that of a typical car. When looking at results I would look at the volume fractions of air to CO everywhere and try to minimize that as much as possible while keeping a reasonable fresh air inlet velocity. the modeled CO inlets should be on the lanes where cars will be driving. The count of the CO inlets will be the maximum number of cars found in the garage at any given time (Cars that are running). distribution of inlets should be even across the garage.
@@husamyounis6607 Thank you for sharing. Can I ask you if you can offer training for someone that has interest in CFD modelling. My background is Fire safety Engineering. I look forward to hearing from you. Thank you
What you have to make sure is that your geometry is watertight. We have some guidelines in our documentation that tell you how to prepare your model properly (also using tools like Onshape).
How did you set for the jet? as velocity inlet? and velocity outlet for the other side?
I want to simulate ventilation rate through a hole in a room, can you help
Hi
Something with the numbers doesnt seems right for me..
You are doing here simple 5M elements analsys and running it for 1666 min? That is 28 hours. On 96 cores?
I assume this is k e model.
Isnt it suppose to be much faster?
Indeed it ran on 96 cores and took more than 2000 minutes with a k-epsilon turbulence model.
There's no generation of CO in steady state as boundary condition?
I agree with you! I do not think the CO was modeled in this simulation. The CO PPM graphs magically appeared. What he analyzed was the velocity of air. Increasing air velocity everywhere randomly is not the way to solve such ventilation problem.
I would model several inlets and set their CO volume flow rates to match that of a typical car. When looking at results I would look at the volume fractions of air to CO everywhere and try to minimize that as much as possible while keeping a reasonable fresh air inlet velocity. the modeled CO inlets should be on the lanes where cars will be driving. The count of the CO inlets will be the maximum number of cars found in the garage at any given time (Cars that are running). distribution of inlets should be even across the garage.
@@husamyounis6607 Thank you for sharing. Can I ask you if you can offer training for someone that has interest in CFD modelling. My background is Fire safety Engineering. I look forward to hearing from you. Thank you
how to prepare domain for multi storey infrastructure?
What you have to make sure is that your geometry is watertight. We have some guidelines in our documentation that tell you how to prepare your model properly (also using tools like Onshape).
How long can a jet fan deliver air ??
What exactly do you want to simulate?
Is this simulation option still available?
Yes it is :)