{"action":"created","issue":{"url":"https://api.github.com/repos/firemodels/fds-smv/issues/2503","labels_url":"https://api.github.com/repos/firemodels/fds-smv/issues/2503/labels{/name}","comments_url":"https://api.github.com/repos/firemodels/fds-smv/issues/2503/comments","events_url":"https://api.github.com/repos/firemodels/fds-smv/issues/2503/events","html_url":"https://github.com/firemodels/fds-smv/issues/2503","id":94751136,"number":2503,"title":"Combustion with one Fuel and two different atmospheres doenst work","user":{"login":"DerTobi17","id":13256529,"avatar_url":"https://avatars.githubusercontent.com/u/13256529?v=3","gravatar_id":"","url":"https://api.github.com/users/DerTobi17","html_url":"https://github.com/DerTobi17","followers_url":"https://api.github.com/users/DerTobi17/followers","following_url":"https://api.github.com/users/DerTobi17/following{/other_user}","gists_url":"https://api.github.com/users/DerTobi17/gists{/gist_id}","starred_url":"https://api.github.com/users/DerTobi17/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/DerTobi17/subscriptions","organizations_url":"https://api.github.com/users/DerTobi17/orgs","repos_url":"https://api.github.com/users/DerTobi17/repos","events_url":"https://api.github.com/users/DerTobi17/events{/privacy}","received_events_url":"https://api.github.com/users/DerTobi17/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":{"login":"rmcdermo","id":4418497,"avatar_url":"https://avatars.githubusercontent.com/u/4418497?v=3","gravatar_id":"","url":"https://api.github.com/users/rmcdermo","html_url":"https://github.com/rmcdermo","followers_url":"https://api.github.com/users/rmcdermo/followers","following_url":"https://api.github.com/users/rmcdermo/following{/other_user}","gists_url":"https://api.github.com/users/rmcdermo/gists{/gist_id}","starred_url":"https://api.github.com/users/rmcdermo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rmcdermo/subscriptions","organizations_url":"https://api.github.com/users/rmcdermo/orgs","repos_url":"https://api.github.com/users/rmcdermo/repos","events_url":"https://api.github.com/users/rmcdermo/events{/privacy}","received_events_url":"https://api.github.com/users/rmcdermo/received_events","type":"User","site_admin":false},"milestone":null,"comments":4,"created_at":"2015-07-13T15:42:48Z","updated_at":"2015-07-13T19:27:39Z","closed_at":null,"body":"Hello,\r\n\r\ni tried to build the controlled atmosphere cone calorimeter.The Geometry only shows a part of the cone calorimeter. First the fuel should reacts under an controlled atmosphere in the box. After the combustion in the box the products should be able to react with the second atmosphere outside the box. I defined to different reactions.One for the combustion in the box and one for the combustion outside the box. The problem is when i use two reactions at the same time only one atmosphere react with the fuel. If i start the simulation with only one of these two reactions it works well(Post Combustion_Yields_Zuluft.fds). Im unable to upload the FDS Files on the forum.\r\n![supplied air 43sec](https://cloud.githubusercontent.com/assets/13256529/8653513/079c20ce-2985-11e5-8b20-7b4ff2d9f57a.JPG)\r\nThere is no combustion because filling with AIR starts at 65sec\r\n![supplied air 67sec](https://cloud.githubusercontent.com/assets/13256529/8653514/079c21d2-2985-11e5-85db-aa5977d14fdb.JPG)\r\nAfter 65s u can see a combustion.\r\n\r\n For example i fill the box with a defined species the fuel reacts with this species. When it should reacts with supplied species and the background it doenst work. There only the supplied species reacts with the fuel (Post Combustion_Yields_BACK_Zuluft.fds). \r\n\r\n![background supplied air 43sec](https://cloud.githubusercontent.com/assets/13256529/8653511/0798ab7e-2985-11e5-897d-4e831a3cbeba.JPG)\r\nThere i activated the reaction for the background atmosphere but nothing happens.\r\n\r\n![background supplied air 67sec](https://cloud.githubusercontent.com/assets/13256529/8653512/079bf504-2985-11e5-9f84-b6707f7c73b0.JPG)\r\nAfter 67s the filled species reacts with the fuel.\r\n\r\nPost Combustion_Yields_Zuluft.fds(one reaction is activated):\r\n\r\n&HEAD CHID='Post_Combustion_Yields'/\r\n&TIME T_END=300, DT=0.01/\r\n&DUMP RENDER_FILE='Post_Combustion_Yields.ge1', MASS_FILE=.TRUE./\r\n\r\n&MESH ID='MESH', IJK=12,12,12, XB=-0.6,0.6,-0.6,0.6,0.0,1.2/\r\n\r\n&MISC SUPPRESSION=.FALSE. /\r\n\r\n&SPEC ID='NITROGEN', LUMPED_COMPONENT_ONLY=.TRUE. /\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&SPEC ID='OXYGEN', LUMPED_COMPONENT_ONLY=.TRUE. /\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&SPEC ID='WATER VAPOR', LUMPED_COMPONENT_ONLY=.TRUE. /\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&SPEC ID='CARBON DIOXIDE', LUMPED_COMPONENT_ONLY=.TRUE. /\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&SPEC ID='CARBON MONOXIDE', LUMPED_COMPONENT_ONLY=.TRUE. /\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&SPEC ID='SOOT', MASS_EXTINCTION_COEFFICIENT=10000\t, LUMPED_COMPONENT_ONLY=.TRUE., FORMULA='C0.9H0.1'/\t\t\r\n\r\n&SPEC ID='Holz', FORMULA ='C1H1.7O0.74N0.002'/\t\t\t\t\r\n\r\n&SPEC ID='AIR1', BACKGROUND=.TRUE.,\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\nSPEC_ID(1)='OXYGEN', VOLUME_FRACTION(1)=\t\t\t\t\t0.21\t,\t\t\t\t\t\t\t\r\nSPEC_ID(2)='NITROGEN', VOLUME_FRACTION(2)=\t\t\t\t\t0.79\t/\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&SPEC ID='PRODUCTS1',\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\nSPEC_ID(1)='CARBON MONOXIDE', VOLUME_FRACTION(1)=\t\t\t\t\t0.0129965,\t\t\t\t\t\t\r\nSPEC_ID(2)='CARBON DIOXIDE', VOLUME_FRACTION(2)=\t\t\t\t\t0.1622222,\t\t\t\t\t\t\r\nSPEC_ID(3)='WATER VAPOR', VOLUME_FRACTION(3)=\t\t\t\t\t0.1507970\t,\t\t\t\t\t\t\r\nSPEC_ID(4)='NITROGEN', VOLUME_FRACTION(4)=\t\t\t\t\t0.6713813\t\t,\t\t\r\nSPEC_ID(5)='SOOT', VOLUME_FRACTION(5)=\t\t\t\t\t0.0026030\t/\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\nREAC FUEL='Holz', HEAT_OF_COMBUSTION=\t16400\t, SPEC_ID_NU='Holz', 'AIR1', 'PRODUCTS1', NU=-1, -4.7849642\t,5.6318547\t, /  21%\r\n\r\n&SPEC ID='AIR2',\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\nSPEC_ID(1)='OXYGEN', VOLUME_FRACTION(1)=\t\t\t\t\t0.18\t,\t\t\t\t\t\t\t\r\nSPEC_ID(2)='NITROGEN', VOLUME_FRACTION(2)=\t\t\t\t\t0.82\t/\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&SPEC ID='PRODUCTS2',\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\nSPEC_ID(1)='CARBON MONOXIDE', VOLUME_FRACTION(1)=\t\t\t\t\t0.0113845\t,\t\t\t\t\t\t\t\t\r\nSPEC_ID(2)='CARBON DIOXIDE', VOLUME_FRACTION(2)=\t\t\t\t\t0.1421002\t,\t\t\t\t\t\t\t\t\r\nSPEC_ID(3)='WATER VAPOR', VOLUME_FRACTION(3)=\t\t\t\t\t\t0.1320922\t,\t\t\t\t\t\t\t\t\r\nSPEC_ID(4)='NITROGEN', VOLUME_FRACTION(4)=\t\t\t\t\t\t\t0.7121430\t,\t\t\t\t\t\t\t\t\r\nSPEC_ID(5)='SOOT', VOLUME_FRACTION(5)=\t\t\t\t\t\t\t\t0.0022801\t/\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&REAC FUEL='Holz', HEAT_OF_COMBUSTION=\t16400\t, SPEC_ID_NU='Holz', 'AIR2', 'PRODUCTS2', NU=-1, -5.5824582,6.4293487 /  18%\r\n\r\n&SURF ID='Feuer',\r\n      COLOR='RED',\r\n      MASS_FLUX=0.017995732,\r\n      SPEC_ID='Holz',/\r\n\r\n&SURF ID='LEAK',\r\n      MASS_FLUX=0.019097561,\r\n      SPEC_ID='AIR2',\r\n      RAMP_MF='LEAK_RAMP_MF'/\r\n&RAMP ID='LEAK_RAMP_MF', T=0.0, F=0/\r\n&RAMP ID='LEAK_RAMP_MF', T=20.0, F=0 /\r\n&RAMP ID='LEAK_RAMP_MF', T=40.0, F=0 /\r\n&RAMP ID='LEAK_RAMP_MF', T=64.0, F=0 /\r\n&RAMP ID='LEAK_RAMP_MF', T=65.0, F=1 /\r\n&RAMP ID='LEAK_RAMP_MF', T=340.0, F=1.0/\r\n\r\n&OBST XB=-0.2,0.2,-0.2,0.2,0.1,0.2, COLOR='GRAY', SURF_ID='INERT'/ Box side\r\n&OBST XB=-0.3,0.3,0.2,0.3,0.1,0.6, COLOR='GRAY', SURF_ID='INERT'/ Box side\r\n&OBST XB=-0.3,0.3,-0.3,-0.2,0.1,0.6, COLOR='GRAY', SURF_ID='INERT'/ Box side\r\n&OBST XB=-0.3,-0.2,-0.2,0.2,0.1,0.6, COLOR='GRAY', SURF_ID='INERT'/ Box side\r\n&OBST XB=0.2,0.3,-0.2,0.2,0.1,0.6, COLOR='GRAY', SURF_ID='INERT'/ Box side\r\n&OBST XB=0.1,0.3,-0.3,0.3,0.6,0.7, COLOR='GRAY', SURF_ID='INERT'/ Box top\r\n&OBST XB=-0.3,-0.1,-0.3,0.3,0.6,0.7, COLOR='GRAY', SURF_ID='INERT'/ Box top\r\n&OBST XB=-0.1,0.1,-0.3,-0.1,0.6,0.7, COLOR='GRAY', SURF_ID='INERT'/ Box top\r\n&OBST XB=-0.1,0.1,0.1,0.3,0.6,0.7, COLOR='GRAY', SURF_ID='INERT'/ Box top\r\n&OBST XB=-0.1,0.1,-0.2,-0.1,0.7,1.0, COLOR='GRAY', SURF_ID='INERT'/ Box top\r\n&OBST XB=0.1,0.2,-0.2,0.2,0.7,1.0, COLOR='GRAY', SURF_ID='INERT'/ Box top\r\n&OBST XB=-0.1,0.1,0.1,0.2,0.7,1.0, COLOR='GRAY', SURF_ID='INERT'/ Box top\r\n&OBST XB=-0.2,-0.1,-0.2,0.2,0.7,1.0, COLOR='GRAY', SURF_ID='INERT'/ Box top\r\n&OBST XB=0.0,0.1,0.0,0.1,0.4,0.5, COLOR='GRAY', SURF_ID='INERT'/ Feuer\r\n\r\n&VENT SURF_ID='Feuer', XB=0.0,0.1,0.0,0.1,0.5,0.5/ Feuer\r\n&VENT SURF_ID='LEAK', XB=-0.2,0.2,-0.2,0.2,0.2,0.2/ Zuluft\r\n\r\n---------------------------------------------------------------------------------------------------------------------------\r\nPost_Combustion_Yields_BACK_Zuluft.fds(both reactions are activated)\r\n\r\n\r\n&HEAD CHID='Post_Combustion_Yields_BACK_Zuluft'/\r\n&TIME T_END=300, DT=0.01/\r\n&DUMP RENDER_FILE='Post_Combustion_Yields.ge1', MASS_FILE=.TRUE./\r\n\r\n&MESH ID='MESH', IJK=12,12,12, XB=-0.6,0.6,-0.6,0.6,0.0,1.2/\r\n\r\n&MISC SUPPRESSION=.FALSE. /\r\n\r\n&SPEC ID='NITROGEN', LUMPED_COMPONENT_ONLY=.TRUE. /\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&SPEC ID='OXYGEN', LUMPED_COMPONENT_ONLY=.TRUE. /\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&SPEC ID='WATER VAPOR', LUMPED_COMPONENT_ONLY=.TRUE. /\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&SPEC ID='CARBON DIOXIDE', LUMPED_COMPONENT_ONLY=.TRUE. /\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&SPEC ID='CARBON MONOXIDE', LUMPED_COMPONENT_ONLY=.TRUE. /\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&SPEC ID='SOOT', MASS_EXTINCTION_COEFFICIENT=10000\t, LUMPED_COMPONENT_ONLY=.TRUE., FORMULA='C0.9H0.1'/\t\t\r\n\r\n&SPEC ID='Holz', FORMULA ='C1H1.7O0.74N0.002'/\t\t\t\t\r\n\r\n&SPEC ID='AIR1', BACKGROUND=.TRUE.,\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\nSPEC_ID(1)='OXYGEN', VOLUME_FRACTION(1)=\t\t\t\t\t0.21\t,\t\t\t\t\t\t\t\r\nSPEC_ID(2)='NITROGEN', VOLUME_FRACTION(2)=\t\t\t\t\t0.79\t/\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&SPEC ID='PRODUCTS1',\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\nSPEC_ID(1)='CARBON MONOXIDE', VOLUME_FRACTION(1)=\t\t\t\t\t0.0129965,\t\t\t\t\t\t\r\nSPEC_ID(2)='CARBON DIOXIDE', VOLUME_FRACTION(2)=\t\t\t\t\t0.1622222,\t\t\t\t\t\t\r\nSPEC_ID(3)='WATER VAPOR', VOLUME_FRACTION(3)=\t\t\t\t\t0.1507970\t,\t\t\t\t\t\t\r\nSPEC_ID(4)='NITROGEN', VOLUME_FRACTION(4)=\t\t\t\t\t0.6713813\t\t,\t\t\r\nSPEC_ID(5)='SOOT', VOLUME_FRACTION(5)=\t\t\t\t\t0.0026030\t/\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&REAC FUEL='Holz', HEAT_OF_COMBUSTION=\t16400\t, SPEC_ID_NU='Holz', 'AIR1', 'PRODUCTS1', NU=-1, -4.7849642\t,5.6318547\t, /  21%\r\n\r\n&SPEC ID='AIR2',\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\nSPEC_ID(1)='OXYGEN', VOLUME_FRACTION(1)=\t\t\t\t\t0.18\t,\t\t\t\t\t\t\t\r\nSPEC_ID(2)='NITROGEN', VOLUME_FRACTION(2)=\t\t\t\t\t0.82\t/\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&SPEC ID='PRODUCTS2',\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\nSPEC_ID(1)='CARBON MONOXIDE', VOLUME_FRACTION(1)=\t\t\t\t\t0.0113845\t,\t\t\t\t\t\t\t\t\r\nSPEC_ID(2)='CARBON DIOXIDE', VOLUME_FRACTION(2)=\t\t\t\t\t0.1421002\t,\t\t\t\t\t\t\t\t\r\nSPEC_ID(3)='WATER VAPOR', VOLUME_FRACTION(3)=\t\t\t\t\t\t0.1320922\t,\t\t\t\t\t\t\t\t\r\nSPEC_ID(4)='NITROGEN', VOLUME_FRACTION(4)=\t\t\t\t\t\t\t0.7121430\t,\t\t\t\t\t\t\t\t\r\nSPEC_ID(5)='SOOT', VOLUME_FRACTION(5)=\t\t\t\t\t\t\t\t0.0022801\t/\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&REAC FUEL='Holz', HEAT_OF_COMBUSTION=\t16400\t, SPEC_ID_NU='Holz', 'AIR2', 'PRODUCTS2', NU=-1, -5.5824582,6.4293487 /  18%\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n&SURF ID='Feuer',\r\n      COLOR='RED',\r\n      MASS_FLUX=0.017995732,\r\n      SPEC_ID='Holz',/\r\n\r\n&SURF ID='LEAK',\r\n      MASS_FLUX=0.019097561,\r\n      SPEC_ID='AIR2',\r\n      RAMP_MF='LEAK_RAMP_MF'/\r\n&RAMP ID='LEAK_RAMP_MF', T=0.0, F=0/\r\n&RAMP ID='LEAK_RAMP_MF', T=20.0, F=0 /\r\n&RAMP ID='LEAK_RAMP_MF', T=40.0, F=0 /\r\n&RAMP ID='LEAK_RAMP_MF', T=64.0, F=0 /\r\n&RAMP ID='LEAK_RAMP_MF', T=65.0, F=1 /\r\n&RAMP ID='LEAK_RAMP_MF', T=340.0, F=1.0/\r\n\r\n&OBST XB=-0.2,0.2,-0.2,0.2,0.1,0.2, COLOR='GRAY', SURF_ID='INERT'/ Box side\r\n&OBST XB=-0.3,0.3,0.2,0.3,0.1,0.6, COLOR='GRAY', SURF_ID='INERT'/ Box side\r\n&OBST XB=-0.3,0.3,-0.3,-0.2,0.1,0.6, COLOR='GRAY', SURF_ID='INERT'/ Box side\r\n&OBST XB=-0.3,-0.2,-0.2,0.2,0.1,0.6, COLOR='GRAY', SURF_ID='INERT'/ Box side\r\n&OBST XB=0.2,0.3,-0.2,0.2,0.1,0.6, COLOR='GRAY', SURF_ID='INERT'/ Box side\r\n&OBST XB=0.1,0.3,-0.3,0.3,0.6,0.7, COLOR='GRAY', SURF_ID='INERT'/ Box top\r\n&OBST XB=-0.3,-0.1,-0.3,0.3,0.6,0.7, COLOR='GRAY', SURF_ID='INERT'/ Box top\r\n&OBST XB=-0.1,0.1,-0.3,-0.1,0.6,0.7, COLOR='GRAY', SURF_ID='INERT'/ Box top\r\n&OBST XB=-0.1,0.1,0.1,0.3,0.6,0.7, COLOR='GRAY', SURF_ID='INERT'/ Box top\r\n&OBST XB=-0.1,0.1,-0.2,-0.1,0.7,1.0, COLOR='GRAY', SURF_ID='INERT'/ Box top\r\n&OBST XB=0.1,0.2,-0.2,0.2,0.7,1.0, COLOR='GRAY', SURF_ID='INERT'/ Box top\r\n&OBST XB=-0.1,0.1,0.1,0.2,0.7,1.0, COLOR='GRAY', SURF_ID='INERT'/ Box top\r\n&OBST XB=-0.2,-0.1,-0.2,0.2,0.7,1.0, COLOR='GRAY', SURF_ID='INERT'/ Box top\r\n&OBST XB=0.0,0.1,0.0,0.1,0.4,0.5, COLOR='GRAY', SURF_ID='INERT'/ Feuer\r\n\r\n&VENT SURF_ID='Feuer', XB=0.0,0.1,0.0,0.1,0.5,0.5/ Feuer\r\n&VENT SURF_ID='LEAK', XB=-0.2,0.2,-0.2,0.2,0.2,0.2/ Zuluft\r\n\r\n\r\nThank You!\r\nRegards\r\nTobias"},"comment":{"url":"https://api.github.com/repos/firemodels/fds-smv/issues/comments/121030922","html_url":"https://github.com/firemodels/fds-smv/issues/2503#issuecomment-121030922","issue_url":"https://api.github.com/repos/firemodels/fds-smv/issues/2503","id":121030922,"user":{"login":"DerTobi17","id":13256529,"avatar_url":"https://avatars.githubusercontent.com/u/13256529?v=3","gravatar_id":"","url":"https://api.github.com/users/DerTobi17","html_url":"https://github.com/DerTobi17","followers_url":"https://api.github.com/users/DerTobi17/followers","following_url":"https://api.github.com/users/DerTobi17/following{/other_user}","gists_url":"https://api.github.com/users/DerTobi17/gists{/gist_id}","starred_url":"https://api.github.com/users/DerTobi17/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/DerTobi17/subscriptions","organizations_url":"https://api.github.com/users/DerTobi17/orgs","repos_url":"https://api.github.com/users/DerTobi17/repos","events_url":"https://api.github.com/users/DerTobi17/events{/privacy}","received_events_url":"https://api.github.com/users/DerTobi17/received_events","type":"User","site_admin":false},"created_at":"2015-07-13T19:27:39Z","updated_at":"2015-07-13T19:27:39Z","body":"These two pictures shows that there is no combustion until 65 seconds. After 65 seconds the combustion begins when AIR2 flows into the box.\r\n![hrr](https://cloud.githubusercontent.com/assets/13256529/8658719/dc1c5b3c-29a5-11e5-8f6a-5413df47f45b.png)\r\n![vol](https://cloud.githubusercontent.com/assets/13256529/8658718/dc1918b4-29a5-11e5-9c44-f578216869c1.png)\r\n"}}