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IDProjectCategoryView StatusLast Update
0000785OpenFOAMBugpublic2013-03-18 09:35
Reportersushpa Assigned Touser2 
PrioritynormalSeveritytrivialReproducibilityalways
Status resolvedResolutionno change required 
PlatformDarwinOSMac OS XOS Version10.8.2
Summary0000785: Incorrect introduced mass in sprayFoam / aachenBomb
DescriptionThe mass introduced in the default aachenBomb tutorial is much less than that specified in the constant/sprayCloudProperties. The totalMass of 6mg is never reached and after the injection is complete the mass in the system is just under 2mg.

The fix is to lower the parcelsPerSecond to 2E+06 down from 2E+07.
Steps To ReproduceSimply run the aachenBomb tutorial and monitor the 'mass introduced'.
At the end you may integrate C7H16 (*rho) over the domain (in Paraview) to confirm.
Additional InformationApplies to:
OpenFOAM 2.0, 2.1, 2.2 and their repository versions
TagsNo tags attached.

Activities

user2

2013-03-15 17:35

  ~0002013

This is fixed in 2.2/2.2.x, and it should not be necessary to change the parcelsPerSecond parameter

user2

2013-03-18 09:35

  ~0002020

Version 2.2 yields the following result - not quite 6 mg, but very close...

Solving cloud sprayCloud
Cloud: sprayCloud
    Current number of parcels = 0
    Current mass in system = 0
    Linear momentum = (0 0 0)
   |Linear momentum| = 0
    Linear kinetic energy = 0
    Rotational kinetic energy = 0
    model1:
        number of parcels added = 12301
        mass introduced = 5.99711e-06
    Parcels absorbed into film = 0
    New film detached parcels = 0
    Parcel fate (number, mass)
      - escape = 0, 0
      - stick = 0, 0
    Temperature min/max = 0, 0
    Mass transfer phase change = 5.99714e-06
    D10, D32, Dmax (mu) = 0, 0, 0
    Liquid penetration 95% mass (m) = 0

Issue History

Date Modified Username Field Change
2013-03-15 16:27 sushpa New Issue
2013-03-15 17:35 user2 Note Added: 0002013
2013-03-18 09:35 user2 Note Added: 0002020
2013-03-18 09:35 user2 Status new => resolved
2013-03-18 09:35 user2 Fixed in Version => 2.2.x
2013-03-18 09:35 user2 Resolution open => no change required
2013-03-18 09:35 user2 Assigned To => user2