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  • VECTOR.HTM
    switched on again See also VECTOR VECTOR DELETE VECTOR CLEAR VECTOR ON VECTOR ON Photon Help VE ctor ON element range switches on the specified vector element s which will appear in subsequent plots See also VECTOR VECTOR DELETE VECTOR OFF VECTOR CLEAR Vector options in PHOTON You use the options DASH and COLOUR for vectors in the same way as for grids The SHADE option colours the vector arrows according to magnitude from blue low values to red high values An example of a vector command with optional parameters is VEC IX 1 IY 1 3 DASH 2 SHADE which plots coloured and dashed vectors on the IX 1 plane over the patch IY 1 to 3 and IZ 1 to M Vector positioning with PHOTON You may plot vector arrows in one of two ways They may be centred at the cell nodes or their tails can start at the cell nodes the default The commands SET VECTOR CENTRE ON and SET VECTOR CENTRE OFF switch between these two plotting modes Vector scaling with PHOTON PHOTON automatically calculates a reference velocity for plotting vectors You may wish to reset this value to one having special significance or to make the vector arrows appear smaller or larger This can be done through the command SET VECTOR REFERENCE n where n is the reference velocity value required If no value is given PHOTON displays the existing value and prompts you for a new value Pressing Return causes PHOTON to recalculate a suitable reference velocity automatically VECTORisable linear equation solver A fully VECTORisable linear equation solver especially suitable for Cray and Convex machines has replaced the previous partially vectorisable version Speed up factors in excess of 2 have been obtained The new solver produces some speed up also for scalar machines

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_enc/vector.htm (2016-02-15)
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  • TEXT.HTM
    string See also TEXT TEXT COLOUR TEXT CLEAR TEXT MOVE TEXT LIST TEXT SIZE TEXT REPLACE TEXT UNDERLINE TEXT DELETE command in AUTOPLOT T EXT D ELETE Deletes last text string entered from memory Use REDRAW command to obtain clean plot Text elements see TEXT command in AUTOPLOT TEXT KEEP command in AUTOPLOT T EXT K EEP Text will not be cleared from memory by a CLEAR command but will be retained for the next plot GROUP associations will also be kept See also HELP on TEXT GROUP 1 TEXT LIST Photon Help T ext L ist lists all current text elements See also TEXT TEXT CLEAR TEXT COLOUR TEXT DELETE TEXT MOVE TEXT SIZE TEXT REPLACE TEXT UNDERLINE TEXT LIST command in AUTOPLOT T EXT L IST List the current text items The text items are also labelled on the screen REDRAW will recover a clean plot See also HELP on TEXT TEXT CLEAR TEXT COLOUR TEXT DELETE TEXT UNDERLINE TEXT MOVE TEXT REPLACE TEXT SIZE TEXT SAVE TEXT READ TEXT ANGLE TEXT MOVE Photon Help T ext M ove element number causes a text element to be moved to a new position The graphics cursor will appear and should be positioned as required Any alphanumeric key will activate the move NOTE that on some Tektronix type devices a redraw may be necessary in order to remove the old text See also TEXT TEXT CLEAR TEXT COLOUR TEXT DELETE TEXT LIST TEXT SIZE TEXT REPLACE TEXT UNDERLINE TEXT MOVE command in AUTOLPOT T EXT M OVE i Moves i th text string to new position located by cursor C can be used to locate the cursor for repeated moves The program will prompt for i if required N can be used to request the next text item to be moved Use the REDRAW command for a clean plot See also HELP on TEXT TEXT CLEAR TEXT COLOUR TEXT DELETE TEXT LIST TEXT SIZE TEXT REPLACE TEXT UNDERLINE TEXT SAVE TEXT READ TEXT ANGLE Text No Photon Help Text No is the sequence number of the TEXT element in the stack Typing in any valid number the total number of TEXT elements will pop up the corresponding TEXT element and make it become the current element Only the attributes of the current TEXT element can be modified TEXT READ command in AUTOPLOT T EXT REA D Text items will be read from a file generated by a previous TEXT SAVE command They will be added to the current text items REDRAW will plot the new text items The program will prompt for the name of the file to be read The default is TXTSAV See also HELP on TEXT TEXT CLEAR TEXT COLOUR TEXT DELETE TEXT LIST TEXT MOVE TEXT REPLACE TEXT SIZE TEXT UNDERLINE TEXT SAVE TEXT ANGLE REDRAW will plot the new text items The program will prompt for the name of the file to be read The default is TXTSAV See also HELP on TEXT TEXT CLEAR

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_enc/text.htm (2016-02-15)
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  • STREAM.HTM
    is the number of tracking steps plotted for each streamline Default 100 TIME is the non dimensional time step for tracking it is equivalent to the size of tracking steps Default 1 0 DOWN plots streamlines downstream of the starting plane UP plots streamlines upstream of the starting plane WHOLE plots streamlines up and downstream of the starting plane POSITIONS sets the distribution of streamline on the starting plane there are three options on a line on a circle or individual points Default is diagonal of starting plane SUBREGION sets the region over which the streamlines are to be plotted Default is whole domain To choose an option enter the appropriate keyword some will require further input for which a prompt will appear on the screen Enter EXIT when parameter resetting is completed Note In the current version of PHOTON the STREAM command should only be used for single phase cases and the 3D streamlines can not be drawn under EXTRAPOLATE See also STREAM CLEAR STREAM DELETE STREAM OFF STREAM ON STREAM 2DIMENSION STREAM 3DIMENSION STREAM 2DIMENSION S Photon Help STR eam 2D imension plane number subregion draws streamlines over the specified plane for 2 dimensional cases All the options available with the CONTOURS command including FILL can be used For example STR 2D Z 1 SH will plot streamlines over IZ 1 plane in coloured according to volume flow rate from blue to red Note This command is only effective in 2 dimensional cases for 3D cases it has the same effect as STREAM See also STREAM STREAM 3DIMENSION CONTOURS STREAM 3DIMENSION S Photon Help STR eam 3D imension plane number subregion draws streamlines in multidimensional space starting from the specified plane This command is equivalent to STREAM See also STREAM STREAM 2DIMENSION STREAM CLEAR Photon Help STR eam

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_enc/stream.htm (2016-02-15)
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  • SURFACE.HTM
    specifies the planes over which the surface contours will be generated Usually two out of three will need to be specified to generate a cross hatched surface eg SURF P1 X 10 0 SURF P1 Y 10 0 will generate a contour surface for P1 10 0 in the X Y plane See also SURFACE CLEAR SURFACE DELETE SURFACE OFF SURFACE ON SURFACE Photon Help Surface activates the surface sub menu to set a new streamline element to be drawn SURFACE CLEAR Photon Help SU rface C lear clears all current surface elements whether switched on or off See also SURFACE SURFACE DELETE SURFACE OFF SURFACE ON SURFACE DELETE Photon Help SU rface DE lete clears the last vector element whether switched on or off See also SURFACE SURFACE CLEAR SURFACE OFF SURFACE ON Surface No Su Photon Help Surface No is the sequence number of the SURFACE element in the stack Typing in any valid number the total number of SURFACE element will pop up the corresponding SURFACE element and make it current Only the attributes of the current SURFACE element can be modified SURFACE OFF Photon Help SU rface OF f element number switches off the specified surface

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_enc/surface.htm (2016-02-15)
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  • SAVE.HTM
    EARTH See RESTRT and NSAVE for related information The results are written to the file at the end of the EARTH run Often however users want to store results more frequently for example at a set time step interval They may do this by use of Q1 settings See PHENC entries IDISPA B C D Alternatively the user can call the subroutine DUMP from Section 8 of Group 19 of GROUND for saving the results at selected time steps Each time DUMP is called the file written to must be renamed To do this the following COMMON block must be included in GROUND COMMON NMFILS NMFIL 60 CHARACTER NMFIL 48 CH3 3 STORNM 48 The following coding should be inserted in Section 8 of Group 19 when PHOENICS is CONFIGured to use an unformatted direct access access file for restarts IF CG 1 NE AND MOD ISTEP IG 1 EQ 0 THEN CH3 WRITE CH3 FMT I3 3 ISTEP IL INDEX CG 1 1 IF IL EQ 1 IL 4 STORNM NMFIL 23 NMFIL 23 CG 1 1 IL CH3 CALL DUMP NMFIL 23 STORNM ENDIF This will write the results at step numbers that are whole number multiples of

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_enc/save.htm (2016-02-15)
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  • include.htm
    obj gxutil obj gxwall obj in phoenics d earth d windf d cmkobj cmklib lib in phoenics d earth d windf d corobj co1lib lib co2lib lib co3lib lib in phoenics d earth d windf d optobj advlib lib bfclib lib chelib lib genlib lib mbflib lib mfmlib lib miglib lib numlib lib radlib lib strlib lib turlib lib twolib lib in phoenics d earth d windf d parobj parlib lib in phoenics d earth d windf d speobj cvdlib lib in phoenics d earth d windf d speobj estlib lib f1lib lib flalib lib furlib lib hotlib lib miclib lib taclib lib in phoenics d allpro d libs d windf dummpi obj mphdum obj mphman obj mpi char obj msw386 obj mswbmp obj mswcopy obj mswext obj mswf2c obj mswfile obj mswfonts obj mswfort obj mswgif obj mswhdmp obj mswman obj mswpcx obj mswutil obj mvrbfcfn obj mvrbfcin obj mvrbitb obj mvredit obj mvrflmp obj mvrglfl obj mvrglmen obj mvrglmn obj mvrglrn obj mvrglut obj mvrglvf obj mvrglvw obj mvrlist1 obj mvrlist2 obj mvrobjdl obj mvrprint obj mvrs4fnc obj mvrs4sub obj mvrscrl obj mvrscrw obj mvrstate obj mvrtext obj mvrtopvw obj mvrvrdl obj mvrvrmn obj mvr avi obj m bfcarr obj m bitmap obj m chmkin obj m clpcmn obj m cmndmn obj m cmnmof obj m domlnk obj m extrap obj m facets obj m farray obj m gbfscb obj m infatt obj m lwork obj m objatr obj m object obj m objnam obj m parmem obj m parsol obj m parvar obj m patcmn obj m patnos obj m spedat obj m strcmn obj m vrvmof obj txtdum obj txtman obj in phoenics d allpro d libs d windf flexlm lm new obj in phoenics d allpro d libs d windf sentpro spdf90 obj in phoenics

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_enc/obj_lib.htm (2016-02-15)
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  • In-Form; the Input of Data by way of Formulae
    object in each time step MOVOB of BLOCK is POS 0 0 3 TIM 0 0 0 The movement is along Z axis The initial position and the sizes of the BLOCK are specified in the Q1 file Z co ordinates of moving BLOCK object are described as Z velocity component m s current time s Composite movement rolling block The case exemplifies the specification of the attributes for composite movement the translation of rotating block It results in the effect of the rolling 2D rectangular object with the longitudinal X direction velocity component of 0 5 m s and the angular rotation about block centre line Z axis of 30 degrees per seconds The movement starts from the initially steady position defined in the Q1 file The hierarchy part is described as follows MOVOB of CHAM is OFFSET 0 0 0 MOVOB of BLOCK is OFFSET 0 55 0 9 0 with PARENT CHAM The OFFSET defines the position of the rotation axis relative to the root frame it places the Z axis in the middle of BLOCK initial position The movement is along X axis and the rotation about Z axis X co ordinates of moving BLOCK object and rotation angles are described as MOVOB of BLOCK is POS 0 5 tim 0 0 0 0 30 tim Independent motions crossing paths The case exemplifies the setting up the attributes for the independent movements of two objects following their own linear trajectories in 2D X Y computational space The movement of the first object called SPHERE1 starts from its stationary position at the west south corner and follows a prescribed parabolic trajectory The velocity of SPHERE1 is 10 m s and is defined by interaction of gravitation force The second object SPHERE2 starts at east south corner of the domain and follows the linear trajectory crossing the one from right to left It has the constant velocity component of 10 m s in X direction and 3 m s in Y direction The movement starts from the initially steady position defined in the Q1 file The description the hierarchy part is not mandatory as two moving objects move inside one root co ordinates system Therefore it is enough only to define the position of moving objects in each time step The movement of SPHERE1 object is along diagonal of XY plane X and Y co ordinates of moving object are described as vel 10 gravt 9 81 MOVOB of SPHERE1 is POS tim vel tim vel 0 5 gravt tim 2 0 0 0 0 The movement of SPHERE2 object is along X axis from right to left X co ordinates of moving object are described as MOVOB of SPHERE2 is POS tim vel 0 0 0 0 0 Connected objects falling of a cracked wall The case exemplifies the setting up the attributes for the connected movements of two objects following their relative rotation in 2D Y Z computational space The movement of the first object called

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_enc/infrm216.htm (2016-02-15)
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  • The RESULT file
    the end of its run It contains results from the simulation in the form of tables of numbers and line printer plots Click here for an old but still generally

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_enc/result.htm (2016-02-15)
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web-archive-uk.com, 2017-12-18