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ୈ 5 ষ PyFoam Λ༻͍ͨύϥϝʔλελσΟͷ࣮ફ 5.2 ϓϩάϥϜͷ֓ཁ
◦ ಈ೪ੑɿද 5.1
◦ ࢄԽεΩʔϜɿ2 ࣍ਫ਼෩্ࠩ
• ڥք݅
◦ inletɿྲྀنఆ (0.15, 0, 0)
◦ outletɿࣗવྲྀग़
◦ wallsɿΓ݅
◦ emptyɿ2 ࣍ݩ݅
˝ ද 5.1: ղੳέʔε
ղੳέʔε ಈ೪ੑ ν ϨΠϊϧζ Re
ιϧό
Re2 1.5 × 10−3 2 simpleFoam
Re5 6.0 × 10−4 5 ˢ
Re20 3.0 × 10−4 10 ˢ
Re40 7.5 × 10−5 40 ˢ
Re100 3.0 × 10−5 100 pimpleFoam
Re200 1.5 × 10−5 200 ˢ
Re500 6.0 × 10−6 500 ˢ
Re1000 3.0 × 10−6 1000 ˢ
Re2000 1.5 × 10−6 2000 ˢ
Re5000 6.0 × 10−7 5000 ˢ
Re10000 3.0 × 10−7 10000 ˢ
ຊདྷͰ͋ΕϨΠϊϧζ Re
= 1000 Ҏ্Ͱཚྲྀͷ༷૬͕ݦஶʹදΕͯ͘Δ
ͨΊɺϝογϡαΠζཚྲྀϞσϧͷݕ౼ΛेΛߦ͏ඞཁ͕͋Γ·͕͢ɺຊॻͷ
༰Λେ͖͘ҳ͢ΔͨΊɺࠓճཚྲྀϞσϧΛ༻͠ͳ͍ൣғͷϨΠϊϧζҬ
Re
= 2 ∼ 2000 ͱɺղੳϞσϧతʹద༻֎ Re
= 5000, 10000 Ͱͷύϥϝʔλελ
σΟΛߦ͍·ͨ͠*2ɻ
5.2 ϓϩάϥϜͷ֓ཁ
ҎԼɺϓϩάϥϜͷશମΛࣔ͠·͢ɻ
*2 ࣮ࠓճͷϞσϧͰ Re = 5000 Ҏ্ͰɺԁபޙํͷཚΕ͕ܹ͘͠ɺ extrudeMesh Ͱϝο
γϡΛԆͨ͠෦ͰྲྀΕ͕ෆ҆ఆʹͳ͍ͬͯΔɻ
– 100 –