of 17

• Category

## Documents

• view

232

0

Embed Size (px)

### Transcript of Laporan Computational Fluid Dynamic (CFD)

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

1/17

ALIRAN EKSTERNAL PIPA

berikut :

D = 2 m

Re = 20

= 1 kg/m3

V = 1 m/s

= 01 kg /ms

!arilah beberapa hal berikut :

- "ro#il ke\$epatan

- !D %!oe##i\$ient Drag&

- "ressure \$oe##i\$ient

- 'treamline

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

2/17

Domain Komputasi

(ambar 1Propertiesof Geometry%2D&

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

3/17

(ambar 2 )entuk (eometri dan *kuran (eometri

Outerboundarydi set sebesar +, - diameter dari silinder Re#erensi ini didapat

dari SteadyFlowPasta Cylinder. ditulis oleh ohn atthe 'ingleton r. dimodi#ikasi

terakhir oleh 'ebastian a\$han\$e )arret on eb 04 201,. !ornell *ni5ersity

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

4/17

(ambar 3Boolean

(ambar ,Line

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

5/17

(ambar 6Projection

Bentuk Mesh

(ambar + )entuk mesh

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

6/17

(ambar 7 Detail mesh dengan tipe edgesizing

(ambar 4 Detail mesh dengan tipeeppedFaceeshing

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

7/17

(ambar 8!amed Selection

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

8/17

Metode Komputasi

(ambar 10 Solution Setup "General#

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

9/17

(ambar 11 Solution Setup "aterial#

"adasolution setup "material# densitas kita atur 1 kg/m3dan 5iskositas 01 kg/ms

(ambar 12 Solution Setup "Boundary Condition Cylinder \$all#

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

10/17

(ambar 13 Solution Setup "Boundary Condition Farfield %#

"ada daerah inletataufarfield1 kita atur berdasarkan&'(elocitysebesar 1 m/s

(ambar 1, Solution Setup "Boundary Condition Farfield )#

"ada daerah outletataufarfield2 kita atur berdasarkanpressuregagesebesar 0 pas\$al

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

11/17

(ambar 16 Solution Setup "*eference +alues#

"ada reference (alues. nilai densitas kita buat 1 kg/m3

(ambar 1+ Solution "Solution ethods#

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

12/17

(ambar 17, Solution "onitors *esiduals Print- Plot#

(ambar 14onitors "Cd Print- Plot#

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

13/17

(ambar 18, Solution "Solution .nitialization#

(ambar 20 Solution "*un Calculation# Cd Con(ergence /istory

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

14/17

(ambar 21 Solution "*un Calculation# Scaled *esiduals

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

15/17

Hasil

"ro#il 9e\$epatan

(ambar 22 "ro#il 9e\$epatan

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

16/17

'treamline

(ambar 23 Streamline

• 7/23/2019 Laporan Computational Fluid Dynamic (CFD)

17/17

Drag !oe##i\$ient dan "ressure !oe##i\$ient

(ambar 2, !d dan Coefficients Pressure

D

ari tabel diatas. maka kita dapatkan nilai !d adalah 3846102 dan nilai dari coefficients