mass flux value in Fire dynamic simulator, Fuel type

[Subhashb2607]

do we need to specify the mass flux / HRRPUV value for continuous leak of n heptane in FDS. ?

[drjfloyd]

It isn't quite clear what you are asking. If you want to model a leak of heptane, somehow you must provide FDS with inputs as to where the leak is, the size of the leak, and the flow rate of the leak. I suggest you review the User's Guide and the various examples in it.

[drjfloyd]

If you want to model leakge of n-heptane you need to give FDS inputs to describe the leakage. Some how you must tell FDS how much fuel is entering you domain. There are various ways this can be done as described in the Guide.

[Subhashb2607]

&HEAD CHID='test_1', TITLE='leakage-20, placement-centre, windspeed-0ms' /

! -------------------- ENVIRONMENT --------------------
&MISC TMPA=20.0, P_INF=101325. /
&WIND SPEED=0.0, DIRECTION=0.0 / ! Wind from the West (+X direction)

! -------------------- DOMAIN --------------------
! Domain reduced to 30x30x30 with 0.5m grid size
&MESH ID='MESH01', IJK=60,60,60, XB=0.0,30.0, 0.0,30.0, 0.0,30.0 /
&TIME T_END=600.0 /

! -------------------- CHEMISTRY -----------------
&SPEC ID='N-HEPTANE', FORMULA='C7H16' /
&REAC FUEL='N-HEPTANE', SOOT_YIELD=0.08, CO_YIELD=0.005 /

! -------------------- MATERIALS & SURFACES ------
&MATL ID='STEEL',
SPECIFIC_HEAT=0.46,
CONDUCTIVITY=45.0,
DENSITY=7850.0 /

&SURF ID='STEEL_SURF',
COLOR='GRAY',
MATL_ID='STEEL',
THICKNESS=0.02 /

&SURF ID='BURNER', SPEC_ID='N-HEPTANE', MASS_FLUX=0.075, COLOR='RED' /

[Subhashb2607]

In my code, I provided all the information. I just wanted to know, by defining the continous leakage of n-heptane, can we simulate pool fire in the FDS??

[drjfloyd]

Please take the time to read the FDS documentation and look at the Verification and Valdiation Guides.

[Subhashb2607]

Ok thank you for your time