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  • FLAIR Tutorial: 8 Flow over Big Ben
    on General and select Wind profile from the object Type list Click on Attributes button The dialog shown below should appear on the screen Set the X direction velocity component to 3 0 m s Set the reference height to 5 0 m Click on OK to close the Wind profile Attributes dialog box Click on OK to close the Object specification dialog box c add the sky Click on the Object pull down menu and select the New New Object option on the Object management dialog box to bring up the Object specification dialog box Change name to SKY Click on the Size button and set Size of the object as X 100 0 m Y 100 0 m Z 0 0 m Click on the Place button and set Position of the object as X 0 0 m Y 0 0 m Z 50 0 m Click on General and select OPENING from the object Type list Click on Attributes and set X velocity to 6 5m s which is the maximum wind speed according to the wind profile at the inlet boundary Click on OK to close the Attributes dialog Click on OK to close the Object specification dialog box d add the downstream boundary Click on the Object pull down menu and select the New New Object option on the Object management dialog box to bring up the Object specification dialog box Change name to OUT Click on the Size button and set Size of the object as X 0 0 m Y 100 m Z 50 m Click on the Place button and set Position of the object as X 100 m Y 0 0 m Z 0 0 m Click on General and select OPENING from the object Type list Click on OK to close the Object specification dialog box e add the ground Click on the Object pull down menu and select the New New Object option on the Object management dialog box to bring up the Object specification dialog box Change name to GROUND Click on the Size button and set Size of the object as X 100 m Y 100 m Z 0 m Click on the Place button and set Position of the object as X 0 0 m Y 0 0 m Z 0 0 m Click on General and select PLATE from the object Type list Click on Attributes Set the roughness to 0 0002 same as for the inlet wind profile and select Fully rough for the Wall function coefficient Click on OK to close the Object specification dialog box c add the side boundaries Click on the Object pull down menu and select the New New Object option on the Object management dialog box to bring up the Object specification dialog box Change name to SSIDE Click on the Size button and set Size of the object as X 100 m Y 0 m Z 50 m Click on the Place button and set Position of

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_wkshp/flair/fla_tut8.htm (2016-02-15)
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  • FLAIR Tutorial 9: Fire-spray in a compartment
    appear In the input window type 1 Click the empty button under Condition An editing window will appear In the input window type onlyms then click File Save Exit The In Form Sources dialog should now look like this Please note that the above function is only for the purpose of demonstration InForm is used to show how the local vapour concentration MH2O can be used to reduce the heat source from the fire The heat source Q is a function of time tim and the local water vapour mass fraction MH2O As long as the MH2O values are near zero the expression gives a t 2 fire growth The constant 46 9 is appropriate for a fast fire Once MH2O increases the strength of the fire is reduced The 500 multiplier determines how much the source is reduced The first line sets the mass source as Q 1 stoichometric ratio heat of combustion where rox and hcomb are the internal menu names The second line sets the heat source and the last line sets the mass fraction of combustion product in the incoming stream to 1 The whol qualifier means that the source is a total source for the object The onlyms qualifier means that the quantity set by the source is convected in by the associated mass source For more information on InForm click here Click on OK and OK d create the wall with a door The wall is made of three blockages Click on the Object pull down menu and select the New New Object option on the Object management dialog box to bring up the Object specification dialog box Change Name to BLK1 Click on the Size button and set Size of the object as X 0 1 m Y 1 03 m Z tick to end Click on the Place button and set Position of the object as X 2 8 m Y 0 0 m Z 0 0 m Click on OK to exit from the object specification dialog Click on the Object pull down menu and select the New New Object option on the Object management dialog box to bring up the Object specification dialog box Change Name to BLK2 Click on the Size button and set Size of the object as X 0 1 m Y 1 05 m Z tick to end Click on the Place button and set Position of the object as X 2 8 m Y tick at end Z 0 0 m Click on OK to exit from the object specification dialog Click on the Object pull down menu and select the New New Object option on the Object management dialog box to bring up the Object specification dialog box Change Name to BLK3 Click on the Size button and set Size of the object as X 0 1 m Y 0 72 m Z 0 37 m Click on the Place button and set Position of the object as X 2 8 m Y 1 03 m Z tick at end Click on OK to exit from the object specification dialog e add the wall on the high Y side Click on the Object pull down menu and select the New New Object option on the Object management dialog box to bring up the Object specification dialog box Change Name to WALL1 Click on the Size button and set Size of the object as X 2 8 m Y 0 0 m Z tick to end Click on the Place button and set Position of the object as X 0 0 m Y tick at end Z 0 0 m Click on General and select PLATE from the object Type list Click on Attributes Change Energy source from Adiabatic to Surface temperature and enter the value to 20 C Click on OK twice to close the object specification dialog box f add the wall on the low Y side This wall is made by the duplicating method Click on the wall object WALL1 Click on the Duplicate object button on the control panel and OK to confirm the action Move the position of the duplicated object to X 0 0 m Y 0 0 m Z 0 0 m Double click on the duplicated object to bring up the object specification dialog box Change the Name to WALL2 and click on OK g add the wall on the low X side Click on the Object pull down menu and select the New New Object option on the Object management dialog box to bring up the Object specification dialog box Change Name to WALL3 Click on the Size button and set Size of the object as X 0 0 m Y tick to end Z tick to end The Position of the object will be left to its default X 0 0 m Y 0 0 m Z 0 0 m Click on General and select PLATE from the object Type list Click on Attributes Change Energy source from Adiabatic to Surface temperature and enter the value to 20 C Click on OK twice to close the object specification dialog box h add the floor Click on the Object pull down menu and select the New New Object option on the Object management dialog box to bring up the Object specification dialog box Change Name to FLOOR Click on the Size button and set Size of the object as X tick to end Y tick to end Z 0 0 m The Position of the object will be left to its default X 0 0 m Y 0 0 m Z 0 0 m Click on General and select PLATE from the object Type list Click on Attributes Change Energy source from Adiabatic to Surface temperature and enter the value to 20 C Click on OK to close the object specification dialog box i add the ceiling This is made by the duplicating method Click on the plate object FLOOR Click on the Duplicate object button

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_wkshp/flair/fla_tut9.htm (2016-02-15)
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  • FLAIR Tutorial 10: Fire and Smoke Modeling
    Object specification dialog box Change Name to OPEN1 Click on the Size button and set Object size of the object as X tick to end Y 0 0 m Z tick to end Select OPENING from the object Type list Click on General and then attributes Leave the external pressure and temperature at ambient Set the external turbulence to User set Click on OK to exit from the object specification dialog e create the remaining openings by copying the first Make sure OPEN1 is highlighted in the Object management list Click on the Object pull down menu and select the Copy object option on the Object management dialog box Click OK to allow the OPEN1 object to be copied A new object will appear at the bottom of the object list Double click it to bring up the Object specification dialog box Change Name to OPEN2 Click on the Place button and set Position of the object as X 0 0 m Y tick at end Z 0 0 m Click on OK to exit from the object specification dialog Make sure OPEN1 is highlighted in the Object management list Click on the Object pull down menu and select the Copy object option on the Object management dialog box Click OK to allow the OPEN1 object to be copied A new object will appear at the bottom of the object list Double click it to bring up the Object specification dialog box Change Name to OPEN3 Click on the Size button and set Object size as X untick to end and set 0 0 Y tick to end Z leave to end Click on OK to exit from the object specification dialog Make sure OPEN3 is highlighted in the Object management list Click on the Object pull down menu and select the Copy object option on the Object management dialog box Click OK to allow the OPEN3 object to be copied A new object will appear at the bottom of the object list Double click it to bring up the Object specification dialog box Change Name to OPEN4 Click on the Place button and set Position of the object as X tick at end Y 0 0 m Z 0 0 m f To set the grid numbers and set solver parameters Click on the Mesh toggle on the hand set or toolbar then click on the image to bring up the Grid mesh Settings dialog The default grid should look like this This is adequate for the purposes of the tutorial Click the mesh toggle again to remove the mesh display Click on the main Menu button and then click on Numerics Change the Total number of iterations to 50 Click on Relaxation control Scroll across the list of variables until temperature TEM1 is visible The maximum increment MAXINC for temperature has been automatically reduced from 1000 deg sweep to 10 deg sweep This gives much better stability when there are strong heat sources present Click on Previous panel

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_wkshp/flair/fla_tt10.htm (2016-02-15)
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  • pinto.htm
    and direct access PHI files and it can produce as output either type of file regardless of the input type PINTO can therefore be used for file type conversion 3 What PINTO cannot do Interpolation between different types of grid For instance you cannot use PINTO to interpolate results from a Cartesian grid on to a BFC grid Generation of XYZ files for the new BFC grid these have to be generated by the user through the Q1 file for the new problem Although PINTO interpolates BFC grids the interpolation scheme is a simplified one in that it assumes that the grid is a uniform one Interpretation of some of PIL commands and special PATCH names in Q1 files For example PINTO does not recognise semi colon as continuation sign REGIONS and sign in the PATCH command 4 The interaction between PINTO and other PHOENICS programs PINTO will normally be used in combination with other PHOENICS programs as follows The user will have a Q1 file that performs a coarse grid computation After running the SATELLITE and EARTH a PHI file with the result for the coarse grid will be generated The user will then write a Q1PIN file for the interpolation of the coarse grid results into the fine grid The Q1PIN file will have settings to define the new grid and to control the format and name of the output files PINTO will then be run by entering the command runpin or runpins for Salford version On execution PINTO will read in the Q1PIN file and will generate a PHI like file with the new file values for the variables on the refined grid APINLOG file will also be generated containing a description of the new grid and any error message After a PINTO run it is essential to inspect the PINLOG file for errors PINTO does not write any error messages to the screen and the contents of this is therefore the same for successful and erroneous runs The new PHI file can then be used by the user in several ways As the input file for the graphics program PHOTON As a restart file for a computation on the finer grid In this case a Q1 file will have to provided by the user describing the problem in the same new grid and the SATELLITE and EARTH will have to be run A flow chart of PINTO is provided below Q1 SATELLITE EARDAT PREFIX EARTH PINCON Q1PIN PHI or PHIDA Ý PINTO Ý NPHI or NPHIDA PINLOG EARTH or PHOTON 5 About Q1PIN Q1PIN input file for PINTO is similar in concept to the Q1 file used by the SATELLITE which the reader is assumed to be familiar with Q1PIN is divided into 3 groups as follows Group 1 Grid specification Group 2 Interpolation controls Group 3 File handling The set of commands used by PINTO comprises some PIL commands and some additional ones which are unique to PINTO As in the PIL the group structure

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_info/pinto.htm (2016-02-15)
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  • each time it runs rem but the spixyz1 files for runs 1 2 6 and 7 are written by the present rem script rem The spinto executable also writes a spinxyz2 file But this is not used rem Instead the present script puts all necessary additional instructions rem into the q2 file rem The present script also write the Q1spin file which guves SPINTO its rem instructions REM If it is desired to terminate execution of this script at any stage rem place the following goto end at the desired location if this file rem after first removing the REM from in front of it rem goto end REM The following environment variable SWEEPS is the number of sweeps REM to be carried out in all runs SET SWEEPS 40 rem goto 5 mkdir sweeps sweep rem Run1 to make pbcl dat REM initialization of file INCLuded in the q1 ECHO nx 4 nx ny 4 ny nz 4 nz spinxyz1 echo nx spinxyz1 echo ny spinxyz1 echo nz spinxyz1 REM Perform the first finest grid run ECHO TEXT 1 no restart finest grid make pbcl Q2 echo lsweep 2 q2 CALL se copy pbcl dat pbcl sav rem Run 2 coarsest grid REM initialization of file INCLuded in the q1 ECHO no refinement spinxyz1 ECHO TEXT Run 2 no restart coarsest grid Q2 echo lsweep sweeps q2 echo parsol f q2 CALL se REM Save the results COPY SATLOG TXT sweeps sweep SATLOG2 TXT COPY RESULT sweeps sweep RES2 COPY PHI sweeps sweep PHI2 COPY GXMONI GIF sweeps sweep GXMONI2 GIF IF EXIST FORCES S CSV COPY FORCES S CSV sweeps sweep FORCES2 CSV REM REM Prepare for SPINTO runs by echoing the necessary lines to q1spin ECHO refine x 2 Q1SPIN ECHO refine y 2 Q1SPIN ECHO refine z 2 Q1SPIN ECHO do not interpolate p1 Q1SPIN ECHO do not interpolate u1 Q1SPIN ECHO do not interpolate v1 Q1SPIN ECHO do not interpolate w1 Q1SPIN ECHO stop Q1SPIN REM According to the above commands SPINTO will double the cell REM y direction number NY unchanged REM It also 1 writes the new values of NX NY NZ into the file REM spinxyz1 which is INCLuded in the Q1 file before the REM grid is created rem 2 declares the boolean variable newphi and sets it t REM 3 reads the existing PHI file and creates therefrom REM a new file NPHI from which the next EARTH run restarts REM Run 3 the first re start with finer grid reun ECHO if newphi then Q2 ECHO real fiinprps Q2 ECHO fiinprps fiinit prps Q2 ECHO restrt all Q2 ECHO fiinit prps fiinprps Q2 ECHO namfi nphi Q2 ECHO endif Q2 ECHO TEXT 3 finer grid restart Q2 echo lsweep sweeps q2 REM Call runspin to activate SPINTO then se for SATELLITE and EARTH REM then save the result phi and gxmoni files for later study CALL RUNSPIN COPY NPHI NPHI3 CALL SE COPY SATLOG TXT sweeps sweep SATLOG3 TXT

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_info/spinto/scr.htm (2016-02-15)
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  • 274
    5 1 5 1 5 12 0 RSET B BODY2 0 1 5 6 1 5 1 5 4 12 0 RSET B ROAD 0 0 0 5 0 20 10 0 RSET B UPSTR 0 0 0 5 6 0 7 0 RSET B DWSTR 0 0 20 5 6 0 5 0 GROUP 6 Body fitted coordinates or grid distortion GROUP 7 Variables stored solved named SOLVE P1 U1 V1 W1 Select whole field solution procedure for pressure and point by point for velocities SOLUTN P1 Y Y Y N N N SOLUTN U1 Y Y n Y N Y SOLUTN V1 Y Y n y N Y SOLUTN W1 Y Y n y N Y store prps imb1 GROUP 8 Terms in differential equations devices GROUP 9 Properties of the medium or media ENUL 1 E 5 ENUT 1 0E 3 GROUP 10 Inter phase transfer processes and properties GROUP 11 Initialization of variable or porosity fields FIINIT P1 0 0 FIINIT W1 14 0 fiinit prps 1 Vehicle body patch BODY1 inival object body1 1 1 coval BODY1 prps 0 0 198 patch BODY2 inival object body2 1 1 coval BODY2 prps 0 0 198 Front wheel patch FWHL inival object fwhl 1 1 coval FWHL prps 0 0 198 Rear wheel patch RWHL inival object rwhl 1 1 GROUP 13 Boundary conditions and special sources Upstream boundary patch UPSTR LOW object upstr 1 1 coval UPSTR P1 fixflu 14 0 coVAL UPSTR W1 onlyms 14 Downstream boundary PATCH DWSTR HIGH object dwstr 1 1 COVAL DWSTR P1 0 1 0 COVAL DWSTR U1 ONLYMS 0 0 COVAL DWSTR V1 ONLYMS 0 0 COVAL DWSTR W1 ONLYMS 0 0 Road surface patch ROAD swall object road 1 1 COVAL ROAD W1 LOGLAW 14 0 Following Patches

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_info/spinto/274q1.htm (2016-02-15)
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  • phi1 copy gxmoni gif gxmoni1 gif rem write q1spin echo refine x 2 q1spin echo refine y 2 q1spin echo refine z 2 q1spin echo do not interpolate p1 q1spin echo do not interpolate u1 q1spin echo do not terpolate v1 q1spin echo do not interpolate w1 q1spin echo stop q1spin echo q1spin created log rem Call SPINTO so as to create nphi i e the phi from which the rem next run will start and to place in spinxyz1 the nx ny and nz rem which are to be used rem Activate goto end by removing the rem in front of it rem if it is desired to terminate at this stage rem goto end rem Make the second stage run save call SPINTO etc echo Text run 2 1st refinement q2 echo lsweep sweeps q2 echo restrt all q2 echo namfi nphi q2 echo runspin about to be called log call runspin echo runspin has been called log copy nphi nphi2 call se echo run 2 complete log copy result sweeps sweep res2 copy phi sweeps sweep phi2 copy gxmoni gif sweeps sweep gxmoni2 gif rem Make the third stage run save call SPINTO etc echo Text run3 2nd refinement q2 echo restrt all q2 echo namfi nphi q2 call runspin copy nphi sweeps sweep nphi3 call se echo run 3 complete log copy result sweeps sweep res3 copy phi sweeps sweep phi3 copy gxmoni gif sweeps sweep gxmoni3 gif rem Make the fourth stage run save call SPINTO etc echo Text run4 3rd refinement q2 echo restrt all q2 echo namfi nphi q2 call runspin copy nph1 sweeps sweep nphi4 call se echo run 4 complete log copy result res4 copy phi sweeps sweep phi4 copy gxmoni gif sweeps sweep gxmoni4 gif rem Run 5 finest grid

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_info/spinto/scr3ref.htm (2016-02-15)
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  • from scratch run and a rem sixth which restarts with the grid and from the phi file rem of run 4 so as to procure a better converged result rem initialization of files included in the q1 copy spinxyz0 spinxyz1 copy spinxyzs spinxyz3 rem perform the first coarse grid run call se rem Save the results ren gxmoni gif gxmoni1 gif copy result res1 copy phi phi1 rem Call SPINTO so as to create nphi i e the phi from which the rem next run will start and to place in spinxyz1 the nx ny and nz rem which are to be used call runspin rem Activate goto end by removing the rem in front of it rem if it is desired to rem terminate at this stage rem goto end rem Make the second stage run save call SPINTO etc call se ren gxmoni gif gxmoni2 gif copy result res2 copy phi phi2 call runspin rem Make the third stage run save call SPINTO etc call se ren gxmoni gif gxmoni3 gif copy result res3 copy phi phi3 call runspin rem Make the fourth stage run save call SPINTO etc rem goto end call se ren gxmoni gif gxmoni4

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_info/spinto/script.htm (2016-02-15)
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web-archive-uk.com, 2017-12-11