Ansys 2024 Fluent Fluid Simulation Software User Manual

CHITSAUKO 2. FLAT PLATE BOUNDARY Layer

Zvinangwa

• Kugadzira Geometry mu Ansys Workbench yeAnsys Fluent
• Kumisikidza Ansys Fluent yeLaminar Steady 2D Planar Flow
• Kugadzika Mesh
• Kusarudza Boundary Conditions
• Kumhanya Masvomhu
• Kushandisa Plots Kuona Inobuda Inoyerera Munda
• Enzanisa neTheoretical Solution uchishandisa Mathematica Code

Dambudziko Rondedzero
Muchitsauko chino, tichashandisa Ansys Fluent kudzidza iyo-maviri-dimensional laminar kuyerera pane yakachinjika flat plate. Saizi yeplate inoonekwa seisingaperi munzira yespanwise uye saka kuyerera kuri 2D pachinzvimbo che3D. The inlet velocity ye1 m kureba ndiro i5 m/s uye tichange tichishandisa mweya semvura yekuenzanisa laminar. Isu tichasarudza velocity profiles uye kuronga profiles. Isu tichatanga nekugadzira iyo geometry inodiwa pakuenzanisa.

Kutanga Ansys Workbench uye Kusarudza Fluent

1. Tanga nekutanga Ansys Workbench. Tinya kaviri paFluid Flow (Fluent) iri pasi peAnalysis Systems muToolbox.
   Kutanga Ansys DesignModeler
2. Sarudza Geometry pasi peProjekti Schematic muAnsys Workbench. Tinya-kurudyi paGeometry uye sarudza Properties. Sarudza 2D Ongororo Type pasi peAdvanced Geometry Sarudzo muZvivakwa zveSchematic A2: Geometry. Tinya-kurudyi paGeometry muProjekti Schematic uye sarudza Tanga Nyowani DhizainiModereri Geometry. Sarudza Units >> Millimeter sechikamu chehurefu kubva kumenyu muDesignModeler.
3. Tevere, tichave tichigadzira iyo geometry muDesignModeler. Sarudza XYPlane kubva kuMuti Outline kuruboshwe-kuruboshwe muDesignModeler. Sarudza Tarisa paSketch Dzvanya pane Sketching tebhu muMuti Outline uye sarudza Mutsetse skSketchool. Dhirowa mutsara wakachinjika 1,000 mm kureba kubva pamavambo kuenda kurudyi. Ita shuwa kuti une P pamavambo paunotanga kudhirowa mutsara. Zvakare, ita shuwa kuti une H parutivi rwemutsara kuitira kuti ive yakachinjika uye C pakupera kwemutsara. Sarudza Dimensions mukati meSketching sarudzo. Dzvanya pamutsetse uye pinda kureba kwe1000 mm. Dhirowa mutsara wakatwasuka uchikwira 100 mm kureba uchitangira panoperera mutsara wekutanga wakachinjika. Ita shuwa kuti une P paunotanga mutsara uye V inoratidza mutsara wakatwasuka. Ramba uine mutsara wakachinjika 100 mm kureba kuruboshwe kubva pamavambo uchiteverwa nemumwe mutsetse wakatwasuka 100 mm kureba. Mutsetse unotevera uchange wakachinjika nehurefu hwe100 mm uchitangira panoperera mutsara wakatwasuka wonanga kurudyi. Pakupedzisira, vhara rectangle ne1,000-mm kureba yakachinjika mutsetse kutanga 100 mm pamusoro pekwakabva uye kunanga kurudyi.
4. Dzvanya pane Modelling tebhu pasi peSketching Toolboxes. Sarudza Concept >> Mapeji kubva kuSketches mune menyu. Kudzora sarudza mipendero mitanhatu yerectangle seBase Objects uye sarudza Nyorera mune Details. View. Dzvanya pakanzi Gadzira mubhara rekushandisa. Rectangle inoita imvi. Kudzvanya-kurudyi pahwindo remifananidzo sarudza Zoom to Fit uye kuvhara DesignModeler.
5. Isu tave kuzodzvanya kaviri paMesh pasi peProjekti Schematic muAnsys Workbench kuvhura iyo Meshing hwindo. Sarudza Mesh mune Outline yeMeshing hwindo. Tinya-kurudyi uye sarudza Gadzira Mesh. Mesh yakakora inogadzirwa. Sarudza Unit Systems >> Metric (mm, kg, N ...) kubva pazasi pehwindo remifananidzo. Sarudza Mesh >> Zvidzore >> Face Meshing kubva kumenyu. Dzvanya padunhu reyero padhuze neGeometry pasi peSope muDetails yeFace Meshing. Sarudza rectangle muhwindo remifananidzo. Dzvanya paApply bhatani reGeometry mune Details re "Face Meshing". Sarudza Mesh >> Zvinodzora >> Kukura kubva kumenyu uye sarudza Edge pamusoro pehwindo remifananidzo. Sarudza mipendero 6 yerectangle. Dzvanya pa Nyorera iyo Geometry mu "Details yeEdge Sizing". Pasi pe Tsanangudzo mu "Details of Edge Sizing", sarudza Element Size seType, 1.0 mm yeElement size, Capture Curvature seNo, uye Yakaoma seMaitiro. Sarudza yechipiri Bias Type uye pinda 12.0 seBias Factor. Sarudza iyo ipfupi yekumusoro yakachinjika mupendero uye Isa iyi mupendero neReverse Bias. Dzvanya paKumba>> Gadzira Mesh mune menyu uye sarudza Mesh mune Outline. Iyo mesh yakapedzwa inoratidzwa pahwindo remifananidzo.
   Sei takagadzira mesh yakarerekera?
   Isu tave kuzopa zita zvakare kumucheto kwerectangle. Sarudza kumucheto kwekuruboshwe kwerectangle, kurudyi tinya uye sarudza Gadzira Yakatumidzwa Sarudzo. Pinda iyo inopinza sezita uye tinya bhatani raOK. Dzokorora danho iri rekurudyi kumucheto kwerectangle woisa zita rekubuda. Gadzira sarudzo ine zita rezasi refu yakachinjika yekurudyi mupendero woidaidza kuti madziro. Chekupedzisira, dzora-sarudza asara matatu akachinjika mipendero uye woatumidza iwo akakodzera madziro. Rusvingo rwakanaka ndeye adiabatic uye frictionless wall.
6. Chikonzero chekushandisa mesh yakarerekera ndechekuti isu tinoda mesh yakatsetseka padyo nemadziro kwatine velocity gradients mukuyerera. Isu takasanganisira mesh yakakwenenzverwa uko iyo muganho layer inotanga kukudziridzika pane flat plate. Sarudza File>> Export…>>Mesh >> FLUENT Input File>> Export kubva kumenyu. Sarudza Sevha semhando: FLUENT Input Files (*.msh). Pinda boundary-layer-mesh .msh the s file zita uye tinya pane Save bhatani. Sarudza File>> Sevha Project kubva pane menyu. Doma chirongwa cheFlat Plate Boundary Layer. Vhara iyo Ansys Meshing hwindo. Tinya-kurudyi paMesh muProjekti Schematic uye sarudza Kwidziridzo.
   Kutanga Ansys Fluent
7. Unogona kutanga Fluent nenzira mbiri dzakasiyana, kungave nekudzvanya-kaviri Setup pasi peProjekti Schematic muAnsys Workbench kana yakamira modhi kubva Fluent 2024 R1 muAnsys 2024 R1 app folda. Iwe unozofanirwa kuverenga mesh kana ukatanga Fluent mune yakamira modhi. An advantagekutanga Ansys Fluent mune yakamira modhi ndeyekuti iwe unogona kusarudza nzvimbo yeKushanda Directory yako uko zvese zvinobuda. files ichaponeswa, ona Mufananidzo 2.6a). Tangisa Dimension 2D uye Double Precision Solver yeFluent. Tarisa Kaviri Precision pasi peSarudzo. Seta nhamba yeSolver Maitiro akaenzana nenhamba yemakomputa cores. Kuti utarise huwandu hwemacores emuviri, tinya makiyi eCtrl + Shift + Esc panguva imwe chete kuti uvhure Task Manager. Enda kuPerformance tab uye sarudza CPU kubva kuruboshwe rworuboshwe. Iwe uchaona huwandu hwemuviri cores pazasi-kurudyi rutivi. Ansys Mudzidzi inogumira kune inokwana 4 solver maitiro. Vhara iyo Task Manager hwindo. Dzvanya paKutanga bhatani kuti utange Ansys Fluent. Dzvanya OK kuvhara iyo Key Behavioral Shanduko hwindo kana ikaonekwa.
   Mufananidzo 2.6a) Kutanga SetupSei tichishandisa kunyatsojeka?
   Kunyatsoita kaviri kunopa kuverenga kwakaringana pane kurongeka kamwe chete.
8. Tarisa chiyero chemesh nekusarudza Scale… bhatani riri pasi peMesh in General paTask Peji. Ita shuwa kuti iyo Domain Extent ndeyechokwadi uye vhara iyo Scale Mesh hwindo.
9. Dzvanya kaviri paModeli uye Viscous (SST k-omega) pasi peSetup muChinyorwa View. Sarudza Laminar seViscous Model. Dzvanya OK kuti uvhare hwindo. Tinya kaviri paBoundary Conditions pasi peSetup muOutline View. Dzvanya kaviri pane inopinza pasi peZone paTask Peji. Sarudza Zvimiro seVelocity Specification Method uye isa iyo X-Velocity [m/s] ku5.
10. Dzvanya paApply bhatani rinoteverwa neKuvhara bhatani.
11. Tinya kaviri pa ideal_wall pasi peZone. Tarisa Yakatsanangurwa Shear seShear Mamiriro uye chengetedza zero kukosha kune yakatsanangurwa shear stress sezvo madziro akakodzera asingakweshe. Dzvanya paApply bhatani rinoteverwa neKuvhara bhatani.
    Sei takasarudza Laminar seViscous Model?
    Kune yakasarudzwa yemahara yerukova velocity 5 m/s nhamba yeReynolds iri pasi pe500,000 padivi pendiro uye kuyerera kwacho kune laminar. Mhepo inoyerera ichitevedza ndiro yakati sandara inoitika panhamba dzeReynolds pamusoro pe500,000.
12. Dzvanya kaviri paNzira dziri pasi peSolution mune iyo Outline View. Sarudza Yakajairwa Yekudzvanya uye Yekutanga Order Upwind yeMomentum. Tinya kaviri pane Reference Values ​​pasi peSetup muOutline View. Sarudza Kombuta kubva pane inopinza paTask Peji.
    Sei isu tichishandisa iyo Yekutanga Order Upwind nzira yeSpatial Discretization yeMomentum?
    Iyo Yekutanga Order Upwind nzira kazhinji haina kurongeka asi inochinja zvirinani pane yechipiri Order Upwind nzira. Yakajairika tsika kutanga neFirst Order Upwind nzira pakutanga kwekuverenga uye kuenderera neSecond Order Upwind nzira.
13. Dzvanya kaviri paInitialization pasi peSolution muOutline View, sarudza Standard Initialization, sarudza Compute kubva pane inopinza, uye tinya pakanzi Initialize bhatani.
14. Dzvanya kaviri paMonitors pasi peSolution mune iyo Outline View. Dzvanya kaviri paResidual pasi peMonitors mune iyo Outline View uye pinda 1e-9 seAbsolute Criteria kune ese Residuals. Dzvanya pa OK bhatani kuvhara hwindo. Sarudza File>> Sevha Project kubva pane menyu. Sarudza File>> Export >> Nyaya… kubva kumenyu. Chengetedza Nyaya File ine zita rekuti Flat Plate Boundary Layer. CAS.h5
    Sei takaisa Mhedziso Yemaitiro ku1e-9?
    Kazhinji, iyo yakadzikira iyo mhedziso maitiro, iyo yakareba nguva iyo kuverenga ichatora uye kupa mhinduro chaiyo. Tinoona muMufananidzo 2.12b) kuti x-velocity uye y-velocity equations ine zvisaririra zvakaderera pane kuenderera equation. Materu ema curves ese ari matatu equation akaenzana nekupinza kudzika.
15. Dzvanya kaviri pa Run Calculation pasi peSolution uye isa 5000 yeNhamba yeIterations. Tinya bhatani reKareta. Iko kuverenga kuchave kwakazara mushure mekudzokorora kwe193, ona Mufananidzo 2.12b). Dzvanya pa Copy Screenshot ye Active Window kuClipboard, ona Mufananidzo 2.12c). Iyo Scaled Residuals inogona kunamirwa mugwaro reShoko.
    Post-Processing
16. Sarudza iyo Mhedzisiro tebhu mune menyu uye sarudza Gadzira >> Mutsetse/Rake… pasi peSurface. Isa 0.2 ye x0 (m), 0.2 ye x1 (m), 0 ye y0 (m), uye 0.02 m ye y1 (m). Pinda x=0.2m yeZita Idzva Repamusoro uye tinya paGadzira. Dzokorora danho iri katatu uye gadzira mitsetse yakatwasuka pa x=0.4m ine kureba 0.04 m, x=0.6m nekureba 0.06 m, uye x=0.8m nekureba 0.08 m. Vhara hwindo.
17. Dzvanya kaviri paPlots uye XY Plot pasi pemibairo mune iyo Outline View. Uncheck Position pa X Axis pasi peSarudzo uye tarisa Position pane Y-axis. Rongedza Plot Direction ye X kusvika 0 uye 1 yeY. Sarudza Velocity… uye X Velocity se X Axis Function. Sarudza mitsetse mina x=0.2m, x=0.4m, x=0.6m, uye x=0.8m pasi peSurfaces.
18. Dzvanya paAxes… bhatani muSolution XY Plot hwindo. Sarudza X-Axis, uncheck Auto Range pasi peSarudzo, isa 6 yeMaximum Range, sarudza General Type pasi peNhamba Format, uye isa Precision ku0. Dzvanya paApply bhatani. Sarudza iyo Y-Axis, usatarise iyo Auto Range, isa 0.01 yeMaximum Range, sarudza General Type pasi peNhamba Format, uye tinya pakanzi Nyorera. Vhara hwindo reAxes.
19. Dzvanya paCurves… bhatani muSolution XY Plot hwindo. Sarudza yekutanga patani pasi peMutsara Siira yeCurve # 0. Sarudza hapana Symbol yeMaka Style wobaya pakanzi Nyorera. Tevere, sarudza Curve # 1, sarudza inotevera inowanikwa Pateni yeMutsetse Siira, hapana Symbol yeMaka Sitaera, uye tinya pakanzi Nyorera bhatani. Ramba uchiita maitiro ekusarudza nema curves maviri anotevera # 2 uye # 3. Vhara maCurves - Solution XY Plot window. Dzvanya pane Save/Plot bhatani muSolution XY Plot hwindo uye Vhara iyi hwindo. Dzvanya pa Copy Screenshot ye Active Window kuClipboard, ona Mufananidzo 2.16c). Iyo XY Plot inogona kunamirwa mugwaro reIzwi. Sarudza iyo Mushandisi Inotsanangurwa tab mune menyu uye Tsika pasi peMunda Mabasa. Sarudza chaiyo Operand Munda Basa kubva pane yekudonha-pasi menyu nekusarudza Mesh… uye Y-Coordinate. Dzvanya paSarudza uye isa tsananguro sezvakaratidzwa mumufananidzo 2.16f). Iwe unofanirwa kusarudza Mesh… uye X Coordinate kuti ubatanidze iyo x kuronga uye kupedzisa tsananguro yebasa remunda. Pinda eta seZita Nyowani Yebasa, tinya paDefi,ne, uye vhara hwindo. Dzokorora danho iri kuti ugadzire imwe tsika yemunda basa. Panguva ino, isu tinosarudza Velocity… uye X Velocity seMunda Mabasa uye tinya Sarudza. Pedzisa Tsanangudzo sezvakaratidzwa muMufananidzo 2.16g) uye isa u-yakakamurwa-ne-freestream-velocity seZita Idzva Rebasa, tinya paDef, imwe, uye vhara hwindo.
    Sei takagadzira kurongeka kwakafanana?
    Zvinoitika kuti nekushandisa yekuzvifananidza kurongeka, iyo velocity profiles munzvimbo dzakasiyana dzerukova dzinodonha pane imwechete yakafanana velocity profile iyo yakazvimirira pane nzvimbo ine rwizi.
20. Dzvanya kaviri paPlots uye XY Plot pasi pemibairo mune iyo Outline View. Seta X ku0 uye Y ku1 sePlot Direction. Uncheck Position paX Axis uye usatarise Position paY-axis pasi peSarudzo. Sarudza Tsika Munda Mabasa uye eta yeY-Axis Basa uye sarudza Tsika Munda Mabasa uye ukamurwa-ne-freestream-velocity yeX-Axis Basa. Place the file blasius.dat mubhuku rako rekushanda. Izvi file inogona kudhaunirodwa kubva sdcpublications.com pasi peKudhaunirodha tab yebhuku rino. Ona Mufananidzo 2.19 weMathematica kodhi inogona kushandiswa kugadzira theoretical Blasius velocity pro.file for laminar boundary layer inoyerera pamusoro peplate sandara. Sezvo exampuye, mubhuku rino dhairekitori rekushanda nderinoti:\Vashandisi\jmatsson. Click on Load File. Sarudza Files yemhando: Zvose Files (*) uye sarudza iyo file blasius.dat kubva kudhairekitori rako rekushanda. Sarudza nzvimbo ina x=0.2m, x=0.4m, x=0.6m, x=0.8m, uye yakatakura file Dzidziso.
    Dzvanya paAxes… bhatani. Sarudza Y-Axis muAxes-Solution XY Plot hwindo uye usatarise Auto. Range. Isa iyo Minimum Range kusvika 0 uye Maximum Range kusvika 10. Isa Rudzi rwekuyangarara uye Precision kusvika 0 pasi peNhamba Format. Pinda iyo Axis Title se eta uye tinya Nyorera. Sarudza X-Axis, uncheck Auto Range pasi peSarudzo, pinda 1.2 yeMaximum Range, sarudza Float Type pasi peNhamba Format, uye isa Precision ku1. Pinda Axis Title se u / U. Dzvanya paApply uye Vhara hwindo. Dzvanya paCurves… bhatani muSolution XY Plot hwindo. Sarudza yekutanga patani pasi peMutsara Siira yeCurve # 0, ona Mufananidzo 2.16a. Sarudza hapana Chiratidzo cheMucherechedzo Chimiro uye tinya pakanzi Nyorera bhatani. Nex, t sarudza Curve # 1, sarudza inotevera iripo Patani yeMutsetse Siira, hapana Symbol yeMaka Sitaera, uye tinya pakanzi Nyorera. Ramba uchiita maitiro ekusarudza nema curves maviri anotevera # 2 uye # 3. Vhara maCurves - Solution XY Plot window. Dzvanya pane Save/Plot bhatani muSolution XY Plot hwindo uye vhara iyi hwindo.
21. Dzvanya pa Copy Screenshot ye Active Window kuClipboard, ona Mufananidzo 2.16c). Iyo XY Plot inogona kunamirwa mugwaro reIzwi. Sarudza iyo Mushandisi Inotsanangurwa tebhu mune menyu uye Tsika. Sarudza chaiyo Operand basa kubva pane yekudonha-pasi menyu nekusarudza Mesh… uye X-Coordinate. Dzvanya paSarudzo uye isa tsananguro sezvakaratidzwa muMufananidzo 2.17e). Pinda rex seItsva Yebasa Zita, tinya pa Define, uye Vhara hwindo. Dzvanya kaviri paPlots uye XPlotsot pasi Mhedzisiro muOutline View. Isa X ku0 uye Y ku1 pasi pePlot Direction.
22. Uncheck Position paX Axis uye usatarise Position paY-axis pasi peSarudzo. Sarudza Wall Fluxes uye Skin Friction Coefficient yeY-Axis Function uye sarudza Custom Field Functions uye rex yeXX-AxisFunction. Place the file "Theoretical Skin Friction Coefficient" mudhairekitori rako rekushanda. Click on Load File. Sarudza Files yemhando: Zvose Files (*) uye sarudza iyo file "Theoretical Skin Friction Coefficient". Sarudza madziro pasi peSurfaces uye akaremerwa file Skin Friction under File Data. Dzvanya paAxes… Bhatani. Tarisa X-Axis, tarisa bhokisi reLog pasi peSarudzo, pinda Re-x seAxis Title, uye uncheck Auto. Range under Option set Minimum to 100 and Maximum to 1000000. Seta Type kuti iyangamire uye Precision kusvika 0 pasi peNhamba Format wodzvanya paApply. Tarisa iyo Y-Axis, tarisa bhokisi reLog pasi peSarudzo, pinda Cf-x seLabel, uye uncheck Auto. Range, isa Minimum kusvika 0.001 uye Maximum kusvika 0.1, isa Type kuti iyangamire, Precision kusvika 3, uye tinya Nyorera. Vhara hwindo. Dzvanya paChengetedza/Chirongwa muSolution XY Plot hwindo. Dzvanya paCurves… bhatani muSolution XY Plot hwindo. Sarudza yekutanga pateni pasi peLin. e Chimiro cheCurve # 0. Sarudza hapana Symbol yeMarker Style uye tinya pakanzi Nyorera. Kwete, sarudza Curve # 1, sarudza inotevera iripo Patani yeMutsetse Siira, hapana Symbol yeMaka Sitaera, uye tinya pakanzi Nyorera. Vhara iyo Curves - Solution XY Plot hwindo. Dzvanya pane Save/Plot bhatani muSolution XY Plot hwindo uye vhara iyi hwindo. Dzvanya pa Copy Screenshot ye Active Window kuClipboard, ona Mufananidzo 2.16c). Iyo XY Plot inogona kunamirwa mugwaro reIzwi.
23. Dzidziso
24. Muchitsauko chino, takaenzanisa Ansys Fluent velocity profiles ine theoretical Blasius velocity profile nokuti laminar inoyerera pane flat plate. Isu takashandura iyo madziro-yakajairika mal coordinate kuita yakafanana coordhisheni yekuenzanisa ye profiles munzvimbo dzakasiyana siyana. Kufanana kurongeka kunotsanangurwa nenzvimbo iyo y (m) iri mudhuri-yakajairika coordinate, inotsanangurwa ne
25. apo y (m) iri mudhuri-wakajairika kurongeka, U (m/s) ndiyo yemahara yerukova velocity, x (m) chinhambwe kubva kurwizi kwakabva rusvingo uye ) m2 /s) ndiko kinematic viscosity ye. mvura. U (m/s) is the free stream velocity, x (m) chinhambwe kubva parukova kwakabva madziro uye m2 /s) ndiyo kinematic viscosity yemvura.

Isu takashandisa zvakare isiri-dimensional streamwise velocity u/U uko iwe uri iwo dimensional velocity pro.file.

u/U yakarongwa maringe nea Ansys Fluent velocity profiles mukuenzanisa neBlasius' theoretical profile uye ese akapunzikira pagonhi rimwe chete setsanangudzo yekuzvifananidza.

Iyo Blasius muganhu layer equation inopiwa na

Ukobvu hwemuganhu hunotsanangurwa sechinhambwe kubva kumadziro kuenda kunzvimbo iyo velocity mumuganhu wemuganhu wasvika 99% yemahara erukova kukosha.

Kune yelaminar boundary layer orr isu tine inotevera theoretical expression yekusiyana kwe boundary layer ukobvu ne streamwise chinhambwe x uye Reynolds nhamba khanye.

• Chirevo chinoenderana chemuganhu wemuganho ukobvu mune mhirizhonga yemuganhu wemuganhu unopiwa na
• Iyo yenzvimbo yeganda friction coefficient inotsanangurwa seyenzvimbo yemadziro shear stress yakakamurwa ne dynamic pressure.
• The theoretical local friction coefficient for laminar flow inotarwa ne
• uye nekuyerera kwemhirizhonga, tine hukama hunotevera

References

1. Çengel, YA, uye Cimbala JM, Fluid Mechanics Zvinokosha uye Zvishandiso, 1st Edition, McGraw-Hill, 2006.
2. Richards, S., Cimbala, JM, Martin, K., ANSYS Workbench Tutorial - Boundary Layer paFlat Plate, Penn State University, 18 May 2010 Revision.
3. Schlichting, H., uye Gersten, K., Boundary Layer Theory, 8th Yakadzokororwa uye Yakakurisa Edition, Springer, 2001.
4. White, FM, Fluid Mechanics, 4th Edition, McGraw-Hill, 1999.

Maekisesaizi

1. Shandisa zvabuda kubva kuAnsys Fluent simulation muchitsauko chino kuona muganho ukobvu munzvimbo dzinoyerera sezvakaratidzwa mutafura pazasi. Zadza ruzivo rusipo mutafura. සසවවවවවවාර (ර්ලර්ය්නා) is velocity of the boundary layer iri chinhambwe kubva kumadziro yakaenzana neborder layer ukobvu uye U ndiyo yemahara yerukova velocity.
   

   x (m)	o (mm) Fluent	o (mm) Dzidziso	Percent Musiyano	U 8 (m/s)	U (m/s)	v (m2/s)	Re x
   0.2						.0000146
   0.4						.0000146
   0.6						.0000146
   0.8						.0000146

2. Chinja saizi yechinhu kuita 2 mm yemesh uye enzanisa zvabuda muXY Plots yeganda friction coefficient maringe nenhamba yeReynolds ine saizi ye1 mm yakashandiswa muchitsauko chino. Enzanisa zvawawana nedzidziso.
3. Shandura yemahara yerukova velocity kuita 3 m/s uye gadzira XY Plot inosanganisira velocity profiles pa x = 0.1, 0.3, 0.5, 0.7, uye 0.9 m. Gadzira imwe XY Plot ine self-yakafanana velocity profiles yeiyi yakaderera yemahara yerukova velocity uye gadzira XY Plot yeganda friction coefficient maringe nenhamba yeReynolds.
4. Shandisa mibairo kubva kuAnsys Fluent simulation muChiitwa 2.3 kuona muganho ukobvu munzvimbo dzinoyerera sezvakaratidzwa patafura pazasi. Zadza ruzivo rusipo mutafura.kumhanya kwemuganhu uri chinhambwe kubva kumadziro chakaenzana nemuganhu wehukobvu uye U ndiyo yemahara yerukova velocity.
   

   x (m)	o (mm) Fluent	o (mm) Dzidziso	Percent Musiyano	U 8 (m/s)	U (m/s)	v (m2/s)	Re x
   0.1						.0000146
   0.2						.0000146
   0.5						.0000146
   0.7						.0000146
   0.9						.0000146

Tafura 2.2 Kuenzanisa pakati Fluent uye dzidziso kuti muganhu layer ukobvu
Chinja iyo yemahara yerukova velocity kune kukosha kwakanyorwa patafura pazasi uye gadzira XY Plot inosanganisira velocity pro.files pa x = 0.2, 0.4, 0.6, uye 0.8 m. Gadzira imwe XY Plot ine self-yakafanana velocity profiles yako yemahara yerukova velocity uye gadzira XY Plot yeganda friction coefficient maringe nenhamba yeReynolds.

Mudzidzi	X-Velocity U (m/s)	Maximum Range (m/s) nokuti X Velocity Plot
1	3	4
2	3.2	4
3	3.4	4
4	3.6	4
5	3.8	4
6	4	5
7	4.2	5
8	4.4	5
9	4.6	5
10	4.8	5
11	5.2	6
12	5.4	6
13	5.6	6
14	5.8	6
15	6	7
16	6.2	7
17	6.4	7
18	6.6	7
19	6.8	7
20	7	8
21	7.2	8

Dhawunirodha PDF: Ansys 2024 Fluent Fluid Simulation Software User Manual

References

• User Manual