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  • WORKSHOP - Duplication
    which stands for west wall Click on Size and set size of object as Xsize 0 0 Ysize 1 0 Zsize 0 4 Click on General Define Type as Plate Click on OK to exit from the Object Dialogue Box Create the upper left boundary wall by duplicating W WALL Click on the Duplicate object or group button OK Click on the Z position up button until the duplicate object has moved as far in the Z direction as possible Z position 0 6m Click on the image of the copy Change name to W WALL2 which stands for west wall2 Click on OK to exit from the Object Dialogue Box Create the lower right boundary wall by duplicating W WALL2 Click on the Duplicate object or group button OK Click on the X position up button until the duplicate object has moved as far in the X direction as possible X position 2 0m Click on the image of the copy Change name to E WALL which stands for east wall Click on OK to exit from the Object Dialogue Box Create the upper right boundary wall by duplicating E WALL Click on the Duplicate object or group button OK Click on the Z position up button until the duplicate object has moved down as to Z position 0 0m Click on the image of the copy Change name to E WALL2 which stands for east wall2 Click on OK to exit from the Object Dialogue Box Create the first column Click on Settings New and New Object Change name to BLOCK1 which stands for first blockage Click on Size and set size of object as Xsize 0 2 Ysize 1 0 Zsize 0 2 Click on Place and set Position of object as Xpos 0 5 Ypos 0 0 Zpos 0 4 Click on General Define Type as Blockage default Click on OK to exit from the Object Dialogue Box Create the second column by duplicating BLOCK1 Click on the Duplicate object or group button OK Double click on the duplicated object to bring up the object specification dialog box Change name to BLOCK2 which stands for second block Click on Place and change position to Xpos 1 3 Ypos 0 0 Zpos 0 4 Click on OK to exit from the Object Dialogue Box Create the fluid inlet Click on Settings New and New Object Change name to INLET Click on Size and set size of object as Xsize 0 0 Ysize 1 0 Zsize 0 2 Click on Place and set Position of object as Xpos 0 0 Ypos 0 0 Zpos 0 4 Click on General Define Type as Inlet Click on Attributes Set the velocity to 2 00 m s in the X direction Click on OK twice Create the fluid outlet Click on Settings New and New Object Change name to OUTLET Click on Size and set size of object as Xsize 0 0 Ysize 1 0 Zsize 0 2 Click on Place

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_wkshp/wrkshp2.htm (2016-02-15)
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  • WORKSHOP - Flow between Cylinders
    by one giving each a position and size corresponding to those in the above diagram You will also introduce attributes for example material velocity or temperature so completing the description of the situation to be simulated Create the fluid inlet In the Object management dialog click on Object New and New Object to bring up the object specification dialog box Change name to INLET Click on Size and set SIZE of object as Xsize 0 0 Ysize tick To end Zsize 0 5 Click on Place and set POSITION of object as Xpos 0 0 Ypos 0 0 Zpos 0 25 Click on General Define Type Inlet Click on Attributes and set velocity in X direction at 0 1 m s Click on OK to close the Attribute menu and on OK in the Object Dialogue Box Create the fluid outlet Object New and New Object Change name to OUTLET Click on Size and set SIZE of object as Xsize 0 0 Ysize tick To end Zsize 0 5 Click on Place and set POSITION of object as Xpos tick At end Ypos 0 0 Zpos 0 25 Click on General Define Type Outlet Leave the default values in the Attributes dialogue box Click on OK to exit from the Object Dialogue Box Create the first cylinder Click on Settings New and New Object Change name to CYL 1 which stands for cylinder 1 Click on Size and set SIZE of object as Xsize 0 15 Ysize tick To end Zsize 0 15 Click on Place and set POSITION of object as Xpos 0 4 Ypos 0 0 Zpos 0 25 Click on Shape In Geometry select public SHAPES CYLINDER and click on Save Click on Options and ROTATION options then click on the button beside Rotate object face until the cylinder is aligned as in the earlier diagram this should be at position 5 We are working through the 24 possible ways of placing a shape into a box until we find the right one Click on OK Define Type Blockage default Leave the default values in the Attributes menu Click on OK to close the Object Dialogue Box Create the remaining cylinders by copying from CYL 1 We want 3 cylinders in the X direction with a 0 5m space between them and 2 in Z spaced at 0 35m Check that the original cylinder is still selected and appears with white high lighting if not click on it then on OK Now click on the Duplicate using array button on the handset It has this icon In the new dialogue box set Direction Dimension Pitch X 3 0 5 Y 1 0 0 Z 2 0 35 Click on OK to exit the dialogue box An array of cylinders appears in the domain Set the grid Click on the Mesh toggle button The default mesh shown as blue and orange lines will appear on the screen The orange lines are regions defined by the bounding boxes of

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_wkshp/wrkshp3.htm (2016-02-15)
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  • WORKSHOP - Array and Group Settings
    New Object Change name to INLET Click on Size and set Size of the object as Xsize 0 0 Ysize 1 0 Zsize 1 0 Click on General Define Type as Inlet Click on Attributes Set the velocity to 2 00 m s in the X Direction Click on OK twice to exit from the Object Dialogue Box Create the fluid outlet by duplicating INLET Click on the Duplicate object or group button and OK Click on the X position up button until the copy has moved as far as possible in the X direction X position 2 0m Double click on the image of the object copy Change name to OUTLET Change Type to OUTLET Click on OK to exit the Object Dialogue Box Create the first plate blockage object Click on Settings New and New Object Change name to BLOCK1 which stands for first blockage Click on Size and set size of the object as Xsize 0 05 Ysize 1 0 Zsize 0 25 Click on Place and set Position of the object as Xpos 0 36 Ypos 0 0 Zpos 0 0 Click on General Click on OK to exit from the Object Dialogue Box Create 5 copies of BLOCK1 along the lower surface using the arraying feature Click on the Duplicate using array button on the handset Set Dimension and Pitch as Direction Dimension Pitch X 6 0 24 Y 1 0 0 Z 1 0 0 Click on OK We now turn the 6 blocks original 5 copies into a group and copy the group to make the upper six blocks Click on the Object management button on the handset Select 6 blockages BLOCK1 B6 B7 B8 B9 B10 Click on Group and Save This will create a new object B11 with all 6 blockages

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_wkshp/wrkshp4.htm (2016-02-15)
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  • WORKSHOP - Inlets, Fans and Outlets
    object as Xsize 0 0 Ysize 1 0 Zsize 0 18 Click on Place and set Position of the object as Xpos 0 5 Ypos 0 0 Zpos 0 22 Click on General Click on Type dialogue box and change Type to FAN Click on Attributes and change the x direction velocity to 1 0 m s Click on OK Click on OK Create a fixed pressure point the domain is closed and the fluid is incompressible Without a fixed pressure point the pressure level is undefined Click on Settings New and New Object Change Name to Fixedp Click on Size and set Size of the object as Xsize 0 03 Ysize 1 0 Zsize 0 03 Click on General Click on Type dialogue box and choose Pressure relief Click on OK Set the grid Click on the Mesh toggle button The default mesh shown as orange and blue lines will appear on the screen The auto generated grid is perfectly adequate for the tutorial but in order to practice setting the grid we are going to alter the Z vertical grid Click anywhere on the image and the Gridmesh settings dialog box will appear Switch the Z grid from Z Auto to Z Manual then click Edit all regions in Z direction Make the following settings Region Cells Distribution Power Symmetric 1 6 Power law 1 5 No 2 3 Power law 1 No 3 15 Power law 1 2 Yes 4 3 Power law 1 No 5 6 Power law 1 5 No Click on OK twice to close the dialog boxes The mesh will now be shown as blue and orange lines The orange lines are regions defined by the bounding boxes of the objects Open the Gridmesh settings dialog again by clicking on the grid and click Edit all regions in Z again Change the signs of the powers in regions 1 and 5 to be 1 5 and 1 5 respectively Click on OK twice to close the dialog boxes How has the grid changed Now restore the settings in the table above Click on Mesh toggle again to turn off the mesh display Set the remaining solution control parameters Click on Main Menu then on click on Numerics and enter 200 in the Total number of iterations dialogue box Click on Relaxation control and switch Automatic convergence control OFF Set SARAH to 0 005 and click on Previous panel Click on Top Menu and OK Running the Solver In the PHOENICS VR environment click on Run Solver Earth and click on OK to confirm running Earth Using the VR Viewer In the PHOENICS VR environment click on Run Post processor then GUI Post processor VR Viewer Click OK on the file names dialog to accept the default files To view Vectors click on the Vector toggle Contours click on the Contour toggle Streamlines click on the Create Streamline button Iso surfaces click on the Iso Surface toggle To select the plotting variable To select

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_wkshp/wrkshp5.htm (2016-02-15)
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  • WORKSHOP - Flow in a Jet Pump
    Zsize 0 55 Click on Place and Set the Position of object as Xpos 0 0 Ypos 0 0 Zpos 1 45 Click on General and Define Type Plate Click on OK twice to exit from the Object Dialogue Box Create the lower left boundary wall by duplication from WALL1 Click on the Duplicate object or group button and OK Move the duplicated object to Zpos 0 0 Double click on the duplicated object and change name to WALL2 Click on OK to exit from the Object Dialogue Box Create the upper inner horizontal wall Click on Object then New New Object Change name to WALL3 Click on Size and Set the SIZE of object as Xsize 4 0 Ysize 1 0 Zsize 0 1 Click on Place and Set the Position of object as Xpos 1 0 Ypos 0 0 Zpos 1 5 Click on General and define Type Blockage Click on OK to exit from the Object Dialogue Box Create the lower inner horizontal wall by duplication from WALL3 Click on the Duplicate object or group button and OK Change the duplicated object position to Xpos 1 0 Ypos 0 0 Zpos 0 4 Change name to WALL4 Click on OK to exit from the Object Dialogue Box Create the upper angled wall Click on Object then New New Object Change name to BAFFLE1 Use Size and Place button to Set POSITION and SIZE of object as Xpos 0 0 Xsize 1 25 Ypos 0 0 Ysize 1 0 Zpos 1 45 Zsize 0 05 Under the Place button set the Angle about Y angle to 15 degrees Click on General and Define Type Blockage Click on OK twice to exit from the Object Dialogue Box Create the lower angled wall by duplication from BAFFLE1 Click on the Duplication button and OK Change position to Xpos 0 01295 to allow for the object rotation Ypos 0 0 Zpos 0 5 Double click on the duplicated object and change name to BAFFLE2 Click on Place and change the Angle about Y rotation angle to 345 degrees Click on OK twice to exit from the Object Dialogue Box Create the upper horizontal baffle Click on Object then New New Object Change name to BAFFLE3 Click on Size and Place buttons to set Size and Position of object as Xpos 1 2 Xsize 1 0 Ypos 0 0 Ysize 1 0 Zpos 1 13 Zsize 0 05 Click on General and use the default Type Blockage Click on OK to exit from the Object Dialogue Box Create the lower horizontal baffle by duplication from BAFFLE3 Click on the Duplicate object or group button and OK Change the duplicated object position to Xpos 1 2 Ypos 0 0 Zpos 0 82 Double click on the object and change name to BAFFLE4 Click on OK to exit from the Object Dialogue Box Create the upper boundary wall Click on Object then New New Object Change name to T WALL which stands for top

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_wkshp/wrkshp9.htm (2016-02-15)
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  • WORKSHOP - Flow in a Bent Pipe
    of the object list Click on X position up until the copy object has moved as far as possible in X Xpos 1 2 Click on Z position up until the copy object has moved as far as possible in Z Zpos 1 7 Double click on the copy object to bring up the object specification dialog box and change name to PIPE 2 Click on OK to close the Object specification dialog box Create the vertical pipe section Click on Object New New object Change name to PIPE 3 Click on Size and set SIZE of object as Xsize 0 3 Ysize 0 3 Zsize 0 8 Click on Place and set Position of object as Xpos 0 6 Ypos 0 0 Zpos 0 6 Click on General Click on Shape and in Geometry select PUBLIC SHAPES CYLINDER and then Open Click on General Define Type Blockage default Click on Attributes then on Other materials Domain material Click on OK to exit the attributes menu and click on OK to close the Object Dialogue box The cylinder already has its axis in the Z direction as desired Create the lower pipe bend Click on Object New New object Change name to BPIPE 1 Click on Size and set SIZE of object as Xsize 0 6 Ysize 0 3 Zsize 0 6 Click on Place and set Position of object as Xpos 0 3 Ypos 0 0 Zpos 0 0 Click on General Click on Shape and in Geometry select PUBLIC SHAPES PIPEBEND and then Open Define Type Blockage default Click on Attributes then on Other materials Domain material Click on OK to exit the Attributes menu and click on OK to close the Object Dialogue box Rotate the pipe to give it the right direction clip art rotation 9 24 Create the second pipe bend by duplication from BPIPE 1 Click on Duplicate object or group and OK Click on the copy object to bring up the object specification dialog box Change name to BPIPE 2 Click on Place and set POSITION of object as Xpos 0 6 Ypos 0 0 Zpos 1 4 Click on Options Click on Rotation options and set value to 3 Click on OK twice Create the fluid inlet by duplication from PIPE 1 Click on PIPE 1 in the Object management dialog or on screen to select it Click on Duplicate object or group and OK Click on Size and set SIZE of object as Xsize 0 0 Ysize 0 3 already correct Zsize 0 3 already correct Click on General Change name to INLET Define Type Inlet Click on Attributes to define the inlet conditions Set the velocity of the inflow in X direction at 1 0 m s Click on OK to close the Attributes menu and on OK in the Object Dialogue Box Create the fluid outlet by duplication from PIPE 2 Click on PIPE 2 in the Object management dialog or on screen to select it Click on Duplicate

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_wkshp/pipe.htm (2016-02-15)
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  • WORKSHOP - Flow Around Buildings
    as Xpos 70 Xsize 10 Ypos 40 Ysize 30 Zpos 25 Zsize 5 In Geometry select SHAPES HALF CONE Turn the shape to the right position as before rotation 2 24 Click on OK to exit from the Object Dialogue Box Create half cone right end of roof of central building Click on New Object Change name to ROOF 22 Set POSITION and SIZE of object as Xpos 100 Xsize 10 Ypos 40 Ysize 30 Zpos 25 Zsize 5 In Geometry select SHAPES HALF CONE Turn the shape to the right position as before rotation 4 24 Click on OK to exit from the Object Dialogue Box Create front half of central wedge roof of central building Click on New Object Change name to ROOF 23 Set POSITION and SIZE of object as Xpos 80 Xsize 20 Ypos 40 Ysize 15 Zpos 25 Zsize 5 In Geometry select SHAPES WEDGE Turn the shape to the right position as before rotation 3 24 Click on OK to exit from the Object Dialogue Box Create back half of central wedge roof of central building Click on New Object Change name to ROOF 24 Set POSITION and SIZE of object as Xpos 80 Xsize 20 Ypos 55 Ysize 15 Zpos 25 Zsize 5 In Geometry select SHAPES WEDGE Turn the shape to the right position as before rotation 1 24 Click on OK to exit from the Object Dialogue Box Create body of right hand building Click on New Object Change name to BUILD 3 Set POSITION and SIZE of object as Xpos 120 Xsize 15 Ypos 30 Ysize 40 Zpos 0 Zsize 15 Click on OK to exit from the Object Dialogue Box Create arched roof of right hand building Click on New Object Change name to ROOF 3 Set POSITION and SIZE of object as Xpos 120 Xsize 15 Ypos 30 Ysize 40 Zpos 15 Zsize 5 In Geometry select SHAPES HALF CYLINDER Turn the shape to the right position as before rotation 5 24 Click on OK to exit from the Object Dialogue Box Set the grid Click on the Mesh toggle button The default mesh will appear on the screen The orange lines are region lines and denote the edges of the bounding boxes of each object The blue lines are ordinary grid lines introduced by the auto mesher Click anywhere on the image and the Gridmesh settings dialog box will appear The grid in all three directions is set to Auto For this case it gives approximately 60 cells in X and 20 in Y and Z The X and Y grids will suffice for the tutorial though they would not be enough for a real calculation The Z grid is too coarse to pick up the details of the roofs The auto mesher settings for each direction are set from the Edit all regions dialog Click on Z direction Click Fractions next to Init cell factor It will change to Sizes The initial cell size is set

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_wkshp/building.htm (2016-02-15)
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  • WORKSHOP - Wind and Solar Heating
    Optional extra output Activate storage of the illumination flag LIT and the total heat source per unit area QS2 This creates two additional 3D variables called LIT and QS2 Eventually LIT will contain the solar illumination and QS2 will contain the solar heat load in W m 2 Click OK three times to return to object management Create the object representing the ground Click on Object New New object in the Object Management Dialog Change the name to SOIL On the Size tab set the X and Y sizes to to end and the Z size to 5 0m Back on the General tab click Attributes to set the properties of this blockage Set the material type to Solids and select 131 Stone chippings for the material Set the roughness to User and the roughness height to 0 1m Choose Fully rough as the wall function law These settings match the settings made for the Wind object above Set the Solar absorption to 0 5 Only 50 of the solar radiation will be absorbed by the ground object the remained is assumed to be reflected back to the sky and surroundings Click OK to close the Attributes dialog Click OK to close the specification dialog and return to Object Management Create the object representing the Building Click on Object New New object in the Object Management Dialog Change the name to BUILDING On the Size tab set the X and Y sizes to 30 0m and the Z size to 25 0m On the Place tab set the X and Y positions to 60 0m and leave the Z position at 0 0m This will position the building in the middle of the domain penetrating through the ground Back on the General tab click Attributes to set the properties of this blockage Set the material type to Solids and select 115 Brickwork outer leaf for the material This material is not really correct as it implies that the entire building is solid brick In reality the properties should be adjusted to account for the composition of the building but this is too advanced for this simple tutorial Set the Solar absorption to 0 2 Only 20 of the solar radiation will be absorbed by the building the remained is assumed to be reflected back to the sky and surroundings Click OK to close the Attributes dialog Click OK to close the specification dialog and return to Object Management Tilt the view down and push back until the entire solar circle is visible The screen should now look like this The blue arrow points North and the red arrow indicates the wind direction relative to North The large orange ball shows the current sun position The smaller orange balls show the sun position at each hour during daylight and the grey balls show the sun position at each hour during the night The red ball shows the sun position at midday Set the grid Click the Wireframe toggle to make all

    Original URL path: http://www.cham.co.uk/phoenics/d_polis/d_wkshp/windsun/windsun1.htm (2016-02-15)
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web-archive-uk.com, 2017-12-18