CFAST

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The Google Discussion Group for the Consolidated Model of Fire and Smoke Transport (CFAST) maintained by the National Institute of Standards and Technology. CFAST is a zone fire model for calculating conditions in a structure with a fire. See the main CFAST website at http://cfast.nist.gov for additional information.

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Katharina Michaelis, dr_jfloyd7

11:13 AM

Integral of Heat Release Rate

For a while now there have been many questions in this forum plus further details in issue opened on

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Integral of Heat Release Rate

For a while now there have been many questions in this forum plus further details in issue opened on

11:13 AM

Katharina Michaelis, … Günter Becker11

Jun 3

Calculating the HRR with equating the HRR to the brandlast

Dear Katharina, as I mentioned in an earlier email, heat of combustion is a material property. You

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Calculating the HRR with equating the HRR to the brandlast

Dear Katharina, as I mentioned in an earlier email, heat of combustion is a material property. You

Jun 3

Katharina Michaelis, … dr_jfloyd15

Jun 3

Fire load, brand last in MJ/m²

Is the integral of the Heat Release Rate the mobile fire exposure in kJ/m² multiplied with the area

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Fire load, brand last in MJ/m²

Is the integral of the Heat Release Rate the mobile fire exposure in kJ/m² multiplied with the area

Jun 3

Jun 2

CDATA : Question about HRR variation (Gamma distribution)

Hello, I have a question concerning the choice of the distribution for parameter variations on CDATA,

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CDATA : Question about HRR variation (Gamma distribution)

Hello, I have a question concerning the choice of the distribution for parameter variations on CDATA,

Jun 2

Katharina Michaelis, … Günter Becker25

May 31

How can I describe the amount of material that can burn in cFast

Yes, thank you, I guess now it's so much more clear. Only I guess I can't see the result in

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How can I describe the amount of material that can burn in cFast

Yes, thank you, I guess now it's so much more clear. Only I guess I can't see the result in

May 31

May 26

CDATA ERROR : Radiative fraction

Hello, I have a problem, using CDATA I wanted to vary the radiative fraction of a fire using the

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CDATA ERROR : Radiative fraction

Hello, I have a problem, using CDATA I wanted to vary the radiative fraction of a fire using the

May 26

DavidB, … Glenn Forney4

May 18

v7.7.2 ventilation limited fire does not extinguish

OK, thanks both. As i noted, the problem is not present in the latest version so probably not worth

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v7.7.2 ventilation limited fire does not extinguish

OK, thanks both. As i noted, the problem is not present in the latest version so probably not worth

May 18

Joel Lederfind, Kevin McGrattan2

May 1

Questions about Validation Output in CFAST (for 7.6.0 and 7.7.4)

I have created an issue https://github.com/firemodels/cfast/issues/2046 All conversation should be

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Questions about Validation Output in CFAST (for 7.6.0 and 7.7.4)

I have created an issue https://github.com/firemodels/cfast/issues/2046 All conversation should be

May 1

Feb 28

CFAST Trainings

Dear CFAST community, I work for a company and our fire protection group of about 30 fire engineers

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CFAST Trainings

Dear CFAST community, I work for a company and our fire protection group of about 30 fire engineers

Feb 28

karim omar, Reneke, Paul A. (Fed)2

Feb 23

Random Distribution of vent fraction

You should not need anything else in the R installation. Make sure you install it in the default

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Random Distribution of vent fraction

You should not need anything else in the R installation. Make sure you install it in the default

Feb 23

karim omar, Reneke, Paul A. (Fed)7

Feb 23

Error with Statistics (-S)

Paul, Thank you for the help, I appreciate that a lot, unfortunately it didn't work. Probably, it

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Error with Statistics (-S)

Paul, Thank you for the help, I appreciate that a lot, unfortunately it didn't work. Probably, it

Feb 23

Jh Auphe, Richard Peacock2

Feb 13

CFAST ERROR Not in manual

Most likely, the error is related to your selection of an international numeric format. CFAST is

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CFAST ERROR Not in manual

Most likely, the error is related to your selection of an international numeric format. CFAST is

Feb 13

Aaron King, Kevin McGrattan2

Jan 27

Values for the Time Dependent Heat Release Rate Graph

Suppose you take those two-by-fours and bundle them tightly together. Or suppose you take them and

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Values for the Time Dependent Heat Release Rate Graph

Suppose you take those two-by-fours and bundle them tightly together. Or suppose you take them and

Jan 27

karim omar, Reneke, Paul A. (Fed)3

Jan 18

Can't run the example Flashover case

Thank you so much, this actually made it work. I think the problem I have now and have been getting

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Can't run the example Flashover case

Thank you so much, this actually made it work. I think the problem I have now and have been getting

Jan 18

fde, … dr_jfloyd5

12/15/22

Validation case

Based on your remarks, I understand that the results need deeper review. Thank you for your response.

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Validation case

Based on your remarks, I understand that the results need deeper review. Thank you for your response.

12/15/22

Qianru Guo, … Boris Ch14

11/2/22

Install CFAST 6.2 on Linux system

I use plugin for inkscape for create geometry https://github.com/bvchirkov/cfast-inkex If you have

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Install CFAST 6.2 on Linux system

I use plugin for inkscape for create geometry https://github.com/bvchirkov/cfast-inkex If you have

11/2/22

Corentin Macqueron, … dr_jfloyd26

9/2/22

Yes, of course, I know it isn't teleported :) We also have videos of this effect on some of our

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Yes, of course, I know it isn't teleported :) We also have videos of this effect on some of our

9/2/22

Burkhard, … Burkhard Forell4

8/5/22

Increased HGL temperatures between Version 7.3.1 and 7.4.3

Hi Richard and Kevin, thank you for your feedback! I am sorry, I found out that I was wrong with my

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Increased HGL temperatures between Version 7.3.1 and 7.4.3

Hi Richard and Kevin, thank you for your feedback! I am sorry, I found out that I was wrong with my

8/5/22

Richard Peacock, Sara2

8/2/22

Re: how to run cfast using the source codes

Thank you for your help! I will try these approaches. ps. sorry about the deleted post due to

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Re: how to run cfast using the source codes

Thank you for your help! I will try these approaches. ps. sorry about the deleted post due to

8/2/22

Reneke, Paul A. (Fed), … dr_jfloyd5

6/13/22

FW: A question about FDS

I get it now, thanks. I was thinking too much of the FSSIM model I wrote for the Navy while at JH

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FW: A question about FDS

I get it now, thanks. I was thinking too much of the FSSIM model I wrote for the Navy while at JH

6/13/22

stevelikai, … Reneke, Paul A. (Fed)6

6/8/22

Issues in wall conduction

Many thanks Paul. We hope you may resolve the problem smoothly. We feel sorry that we can not help in

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Issues in wall conduction

Many thanks Paul. We hope you may resolve the problem smoothly. We feel sorry that we can not help in

6/8/22

Haodong Sun, Reneke, Paul A. (Fed)5

5/19/22

Error with 'FIELD' in CData

thanks for your reply! I downloaded the newest version(7.7.3) and try my test, I think there are some

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Error with 'FIELD' in CData

thanks for your reply! I downloaded the newest version(7.7.3) and try my test, I think there are some

5/19/22

CFAST Development, Richard Peacock22

5/17/22

CFAST Version 7

CFAST 7.7.3 has been released. It includes a few bug fixes identified by users in this group. As

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CFAST Version 7

CFAST 7.7.3 has been released. It includes a few bug fixes identified by users in this group. As

5/17/22

Francesco Negrini, … dr_jfloyd4

3/14/22

electric oven for fun

The values in Table 4.13 are the ranges in the various datasets used for model validation. CFAST

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electric oven for fun

The values in Table 4.13 are the ranges in the various datasets used for model validation. CFAST

3/14/22

Giancarlo Rossi2

3/11/22

No error but CFAST is not running.

I have found some errors on the properties of targets and have eliminated them. Now Cfast starts but

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No error but CFAST is not running.

I have found some errors on the properties of targets and have eliminated them. Now Cfast starts but

3/11/22

Amal Ishibani, … Giancarlo Rossi3

3/8/22

transfer fire to the structural element

Cfast solve the equation for an unidirectional conduction in a semi-infinit omogeneus wall. This is

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transfer fire to the structural element

Cfast solve the equation for an unidirectional conduction in a semi-infinit omogeneus wall. This is

3/8/22

Burkhard, Richard Peacock4

11/2/21

Error with target front face orientation

I think the underlying problem is with the display of the target orientation for new targets. Before

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Error with target front face orientation

I think the underlying problem is with the display of the target orientation for new targets. Before

11/2/21

Sara Kou, Reneke, Paul A. (Fed)3

10/31/21

Can we vary the Ambient Conditions using CData?

That would be great. Thank you for your attention and effort. Sara 在2021年11月1日星期一 UTC+8 上午1:07:39<

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Can we vary the Ambient Conditions using CData?

That would be great. Thank you for your attention and effort. Sara 在2021年11月1日星期一 UTC+8 上午1:07:39<

10/31/21

sreih...@gmail.com, … Kevin McGrattan7

10/7/21

compiling issue with Intel

I suggest you uninstall old versions of the Intel compiler and then install the oneAPI base toolkit

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compiling issue with Intel

I suggest you uninstall old versions of the Intel compiler and then install the oneAPI base toolkit

10/7/21

Joel Lederfind, Richard Peacock2

10/1/21

Vent Open/Close Criterion Table input error

It should work in CEdit though we've had problems in the past. We'll take a look. On Monday,

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Vent Open/Close Criterion Table input error

It should work in CEdit though we've had problems in the past. We'll take a look. On Monday,

10/1/21

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