{"id":45,"date":"2012-05-28T09:50:36","date_gmt":"2012-05-28T15:50:36","guid":{"rendered":""},"modified":"2012-06-22T17:29:34","modified_gmt":"2012-06-22T08:29:34","slug":"\u30d0\u30c3\u30af\u30b9\u30c6\u30c3\u30d7\u6d41\u308c\uff08cbc\uff09","status":"publish","type":"post","link":"https:\/\/www.cenav.org\/kdb\/?p=45","title":{"rendered":"\u30d0\u30c3\u30af\u30b9\u30c6\u30c3\u30d7\u6d41\u308c\uff08CBC\uff09"},"content":{"rendered":"

\u6982\u8981<\/h3>\n

\u3000\u672c\u554f\u984c\u3067\u306f\uff0c\u30d0\u30c3\u30af\u30b9\u30c6\u30c3\u30d7\u6d41\u308c\uff08backward-facing step flow\uff09\u306e\u89e3\u6790\u3092\u884c\u3044\uff0cArmaly\u3089\uff0c\u4ed6\u6587\u732e\u306e\u5b9f\u9a13\u7d50\u679c\u30fb\u8a08\u7b97\u7d50\u679c\u3068\u6bd4\u8f03\u3057\uff0cCBC\u306e\u8a08\u7b97\u7cbe\u5ea6\u3092\u78ba\u8a8d\u3059\u308b\uff0e\u5b9f\u9a13\u306f3\u6b21\u5143\uff0c\u6587\u732e\u306e\u8a08\u7b97\u306f2\u6b21\u5143\u30683\u6b21\u5143\u3060\u304c\uff0c\u3053\u3053\u3067\u306f2\u6b21\u5143\u554f\u984c\u3092\u89e3\u304f\uff0e<\/span><\/p>\n

\"\"<\/p>\n

\u89e3\u6790\u30e2\u30c7\u30eb<\/h3>\n

\"\"<\/p>\n

\u3000\u3053\u306e\u30e2\u30c7\u30eb\u306f\uff0cArmaly\u306e\u5b9f\u9a13\u6d41\u8def\u306e\u65ad\u9762\u5f62\u72b6\u306b\u7b49\u3057\u3044\uff0e<\/span><\/p>\n

\u8a08\u7b97\u683c\u5b50\uff08\u305d\u306e\u4ed6\uff09<\/h3>\n

\u76f4\u4ea4\u7b49\u9593\u9694\u683c\u5b50<\/p>\n

\u8a08\u7b97\u683c\u5b50\u306e\u898f\u6a21<\/h3>\n

3645\u00d750\u00d73<\/p>\n

\u8a08\u7b97\u6761\u4ef6<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n
\n\t\t\t\t\u6d41\u5165\u901f\u5ea6<\/td>\n\n\t\t\t\t\u5bfe\u5fdcRe\u6570<\/td>\n\n\t\t\t\t\u683c\u5b50\u9593\u9694<\/td>\n\n\t\t\t\t\u30bb\u30eb\u6570<\/td>\n<\/tr>\n
\n\t\t\t\t0.1522 [m\/s]<\/td>\n\n\t\t\t\t100<\/td>\n\n\t\t\t\t4.04×10-4<\/sup> [m]<\/td>\n\n\t\t\t\t1732×25×3<\/td>\n<\/tr>\n
\n\t\t\t\t1.3044 [m\/s]<\/td>\n\n\t\t\t\t200<\/td>\n\n\t\t\t\t2.02×10-4<\/sup> [m]<\/td>\n\n\t\t\t\t3645×50×3<\/td>\n<\/tr>\n
\n\t\t\t\t0.5921 [m\/s]<\/td>\n\n\t\t\t\t389<\/td>\n\n\t\t\t\t2.02×10-4<\/sup> [m]<\/td>\n\n\t\t\t\t3645×50×3<\/td>\n<\/tr>\n
\n\t\t\t\t0.9132 [m\/s]<\/td>\n\n\t\t\t\t600<\/td>\n\n\t\t\t\t2.02×10-4<\/sup> [m]<\/td>\n\n\t\t\t\t3645×50×3<\/td>\n<\/tr>\n
\n\t\t\t\t1.2176 [m\/s]<\/td>\n\n\t\t\t\t800<\/td>\n\n\t\t\t\t2.02×10-4<\/sup> [m]<\/td>\n\n\t\t\t\t3645×50×3<\/td>\n<\/tr>\n
\n\t\t\t\t1.5220 [m\/s]<\/td>\n\n\t\t\t\t1000<\/td>\n\n\t\t\t\t2.02×10-4<\/sup> [m]<\/td>\n\n\t\t\t\t3645×50×3<\/td>\n<\/tr>\n
\n\t\t\t\t1.6666 [m\/s]<\/td>\n\n\t\t\t\t1095<\/td>\n\n\t\t\t\t2.02×10-4<\/sup> [m]<\/td>\n\n\t\t\t\t3645×50×3<\/td>\n<\/tr>\n
\n\t\t\t\t1.9643 [m\/s]<\/td>\n\n\t\t\t\t1290<\/td>\n\n\t\t\t\t2.02×10-4<\/sup> [m]<\/td>\n\n\t\t\t\t3645×50×3<\/td>\n<\/tr>\n
\n\t\t\t\t2.4352 [m\/s]<\/td>\n\n\t\t\t\t1600<\/td>\n\n\t\t\t\t1.01×10-4<\/sup> [m]<\/td>\n\n\t\t\t\t6930×100×3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

CBC\u306e\u300cSTEP\u300d\u30af\u30e9\u30b9\u3092\u4f7f\u7528<\/span><\/p>\n

\u5b9f\u884c\u74b0\u5883<\/h3>\n

CPU: Intel Core i7-950 (4 Cores\/CPU) × 2<\/span><\/p>\n

Clock:<\/span> 3.07GHz<\/span><\/p>\n

Memory: 12GB<\/span><\/p>\n

OS: Linux kernel 2.6.32-25-generic, ubuntu 10.04.1 LST<\/span><\/p>\n

Compiler: Intel Compiler Composer XE(12.0) 2011.3.174 C++\/Fortran<\/span><\/p>\n

\u8a73\u7d30\u8aac\u660e<\/h3>\n

\u8a08\u7b97\u306b\u7528\u3044\u305f\u7269\u6027\u5024\uff08\u5e38\u6e29\u306e\u7a7a\u6c17\u306e\u5024\uff09\u3068\u30d1\u30e9\u30e1\u30fc\u30bf<\/span><\/p>\n\n\n\n\n\n
\n\t\t\t\t\u5bc6\u5ea6<\/span><\/td>\n\n\t\t\t\tρ<\/span><\/td>\n\n\t\t\t\t1.1763<\/span><\/td>\n\n\t\t\t\t[kg\/m3<\/sup>]<\/span><\/td>\n<\/tr>\n
\n\t\t\t\t\u7c98\u6027\u4fc2\u6570<\/span><\/td>\n\n\t\t\t\tμ<\/span><\/td>\n\n\t\t\t\t18.62×10-6<\/sup><\/span><\/td>\n\n\t\t\t\t[Pa\u30fbs]<\/span><\/td>\n<\/tr>\n
\n\t\t\t\t\u30af\u30fc\u30e9\u30f3\u6570<\/span><\/td>\n\n\t\t\t\t <\/td>\n\n\t\t\t\t0.1<\/span><\/td>\n\n\t\t\t\t <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u8a08\u7b97\u306b\u7528\u3044\u305f\u5916\u90e8\u5883\u754c\u6761\u4ef6<\/span><\/p>\n\n\n\n\n\n\n\n\n
\n\t\t\t\tX_minus\u9762<\/td>\n\n\t\t\t\t\u6d41\u5165<\/td>\n\n\t\t\t\t\u5404Re\u6570\u5bfe\u5fdc\u901f\u5ea6<\/td>\n\n\t\t\t\tSpecified_Velocity<\/td>\n<\/tr>\n
\n\t\t\t\tX_plus\u9762<\/td>\n\n\t\t\t\t\u6d41\u51fa<\/td>\n\n\t\t\t\t\u653e\u5c04\u6d41\u51fa<\/td>\n\n\t\t\t\tOutflow (Average)<\/td>\n<\/tr>\n
\n\t\t\t\tY_minus\u9762<\/td>\n\n\t\t\t\t\u56fa\u5b9a\u58c1<\/td>\n\n\t\t\t\t <\/td>\n\n\t\t\t\tWall (Fixed)<\/td>\n<\/tr>\n
\n\t\t\t\tY_plus\u9762<\/td>\n\n\t\t\t\t\u56fa\u5b9a\u58c1<\/td>\n\n\t\t\t\t <\/td>\n\n\t\t\t\tWall (Fixed)<\/td>\n<\/tr>\n
\n\t\t\t\tZ_minus\u9762<\/td>\n\n\t\t\t\t\u5468\u671f\u5883\u754c\u6761\u4ef6<\/td>\n\n\t\t\t\t\u5358\u7d14<\/td>\n\n\t\t\t\tPeriodic (Simple_Copy)<\/td>\n<\/tr>\n
\n\t\t\t\tZ_plus\u9762<\/td>\n\n\t\t\t\t\u5468\u671f\u5883\u754c\u6761\u4ef6<\/td>\n\n\t\t\t\t\u5358\u7d14<\/td>\n\n\t\t\t\tPeriodic (Simple_Copy)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

\u89e3\u6790\u7d50\u679c<\/span><\/p>\n

(1) \u518d\u4ed8\u7740\u70b9<\/span><\/p>\n

\u3000\u30b9\u30c6\u30c3\u30d7\u4e0b\u6d41\u5074\u306e\u6d41\u308c\u306e\u30a4\u30e1\u30fc\u30b8\u56f3\u3068\uff0cCBC\u3067\u8a08\u7b97\u3057\u305fRe=1000, t=2[sec]\u306b\u304a\u3051\u308b\u6d41\u901f\u30d9\u30af\u30c8\u30eb\u56f3\u3092\u793a\u3059\uff0e<\/span>\u56f3\u306b\u793a\u3059\u3088\u3046\u306b\uff0c\u30d0\u30c3\u30af\u30b9\u30c6\u30c3\u30d7\u6d41\u308c\u3067\u306f\uff0c\u30b9\u30c6\u30c3\u30d7\u3092\u904e\u304e\u308b\u3068\u304d\u306b\uff0c\u58c1\u9762\u304b\u3089\u306e\u306f\u304f\u96e2\u3092\u4f34\u3046\uff0e\u305d\u306e\u306f\u304f\u96e2\u3057\u305f\u6d41\u308c\u304c\u5e95\u9762\u306b\u518d\u4ed8\u7740\u3059\u308b\u70b9\u3092\u518d\u4ed8\u7740\u70b9\uff08XR<\/sub>\uff09\u3068\u3044\u3046\uff0eRe\u6570\u304c400\u4ee5\u4e0a\u306b\u306a\u308b\u3068\u5929\u4e95\u90e8\u306b\u3082\u6e26\u304c\u751f\u3058\uff0c\u306f\u304f\u96e2\u70b9\uff08XTS<\/sub>\uff09\u3068\u518d\u4ed8\u7740\u70b9\uff08XTR<\/sub>\uff09\u304c\u73fe\u308c\u308b\uff0e<\/span><\/p>\n

\"\"<\/span><\/p>\n

\"\"<\/span><\/p>\n

\u3000\u4e0b\u56f3\u306b\uff0c\u518d\u4ed8\u7740\u70b9\uff08XR<\/sub>\uff09\u3068\u30b9\u30c6\u30c3\u30d7\u9ad8\u3055S\u306e\u6bd4XR<\/sub>\/S\u3068Re\u6570\u306e\u95a2\u4fc2\u306b\u3064\u3044\u3066\uff0cArmaly, Lee, Tihon\u306e\u5b9f\u9a13\u5024\u3068CBC\u306e\u89e3\u6790\u7d50\u679c\u3092\u6bd4\u8f03\u3057\u305f\uff0e<\/span><\/p>\n

\"\"<\/p>\n

\u3000CBC\u306eXR<\/sub>\/S\u306f\uff0cRe\u6570800\u4ee5\u4e0b\u306b\u304a\u3044\u3066Re\u306b\u4f34\u3044\u5897\u52a0\u3057\uff0c\u5b9f\u9a13\u7d50\u679c\u306e\u3070\u3089\u3064\u304d\u306e\u7bc4\u56f2\u5185\u306b\u3042\u308b\uff0e\u3057\u304b\u3057\u306a\u304c\u3089\uff0c\u5b9f\u9a13\u7d50\u679c\u306eXR<\/sub>\/S\u304cRe=900\u301c1200\u306e\u9593\u306b\u30d4\u30fc\u30af\u5024\u3092\u3068\u308b\u306e\u306b\u5bfe\u3057\uff0cCBC\u306e\u89e3\u6790\u7d50\u679c\u3067\u306f\u30d4\u30fc\u30af\u3092\u518d\u73fe\u3067\u304d\u3066\u3044\u306a\u3044\uff0e<\/span><\/p>\n

\u3000Armaly\u306f\uff0c\u3053\u308c\u3092\u9077\u79fb\u6d41\u9818\u57df\uff08trangent flow: 1200<Re<6600\uff09\u306e\u7279\u5fb4\u3067\u3042\u308b\u3068\u8ff0\u3079\u3066\u3044\u308b\uff0e\u5b9f\u9a13\u304c\u9077\u79fb\u6d41\u9818\u57df\u3067\u306f3\u6b21\u5143\u7684\u306a\u6d41\u308c\u3092\u751f\u3058\u308b\u306e\u306b\u5bfe\u3057\uff0c\u4eca\u56de\u306eCBC\u8a08\u7b97\u304c2\u6b21\u5143\u3067\u3042\u308b\u305f\u3081\u306b\uff0c\u9077\u79fb\u6d41\u9818\u57df\u306eXR<\/sub>\u306e\u6319\u52d5\u3092\u3068\u3089\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u304b\u3063\u305f\u53ef\u80fd\u6027\u304c\u8003\u3048\u3089\u308c\u308b\uff0e<\/span><\/p>\n

\u3000\u4e0b\u56f3\u306b\uff0c<\/span>\u518d\u4ed8\u7740\u70b9\uff08XR<\/sub>\uff09\u3068\u30b9\u30c6\u30c3\u30d7\u9ad8\u3055S\u306e\u6bd4XR<\/sub>\/S\u3068Re\u6570\u306e\u95a2\u4fc2\u306b\u3064\u3044\u3066\uff0cChiang, Iwai, William\u306e3\u6b21\u5143\u8a08\u7b97\u5024\uff0cArmaly, Biswas, Tihon, Chiang\u306e2\u6b21\u5143\u8a08\u7b97\u5024\u304a\u3088\u3073Armaly\u306e\u5b9f\u9a13\u5024\u3068CBC\u306e\u89e3\u6790\u7d50\u679c\u3092\u6bd4\u8f03\u3057\u305f\uff0e<\/span><\/p>\n

\"\"<\/p>\n

\u3000CBC\u306e\u7d50\u679c\u306f\uff0c\u4ed6\u306e2\u6b21\u5143\u8a08\u7b97\u5024\u3068\u6bd4\u3079\u3066\u3088\u3044\u4e00\u81f4\u3092\u793a\u3057\u3066\u3044\u308b\uff08Armaly\u3092\u9664\u304f: Armaly\u306e2D\u8a08\u7b97\u306f\u683c\u5b50\u6570\u304c45×45\u3067\u5927\u304d\u3044Re\u6570\u306b\u306f\u89e3\u50cf\u5ea6\u304c\u4e0d\u8db3\u3068\u8003\u3048\u3089\u308c\u308b\uff09\uff0e3\u6b21\u5143\u8a08\u7b97\u5024\u306fArmaly\u306e\u5b9f\u9a13\u5024\u3068\u30d4\u30fc\u30af\u306b\u3044\u305f\u308b\u30ab\u30fc\u30d6\u306f\u307b\u307c\u4e00\u81f4\u3057\u3066\u3044\u308b\u304c\u30d4\u30fc\u30af\u3092\u518d\u73fe\u3059\u308b\u307e\u3067\u306b\u3044\u305f\u3063\u3066\u3044\u306a\u3044\uff0e\u3000<\/span><\/p>\n

(2) Velocity Profile<\/span><\/p>\n

(i) Re=389\u306e\u5834\u5408\u306e\u5404\u65ad\u9762\u3067\u306eVelocity Profile\u306b\u3064\u3044\u3066\uff0c<\/span>Armaly\u306e\u5b9f\u9a13\u5024\uff0cArmaly\u306e\u8a08\u7b97\u5024\u3068CBC\u306e\u8a08\u7b97\u7d50\u679c\u3092\u6bd4\u8f03\u3057\u305f\uff0e<\/span><\/p>\n

\"\"<\/p>\n

Re=389\u3067\u306f\uff0cArmaly\u306e\u5b9f\u9a13\uff0cArmaly\u306e\u8a08\u7b97\uff0cCBC\u306e\u8a08\u7b97\u3068\u3082\u3088\u3044\u4e00\u81f4\u3092\u898b\u305b\u3066\u3044\u308b\uff0e<\/span><\/p>\n

(ii) Re=1000\u306e\u5834\u5408\u306e\u5404\u65ad\u9762\u3067\u306eVelocity Profile\u306b\u3064\u3044\u3066\uff0c<\/span>Armaly\u306e\u5b9f\u9a13\u5024\uff0cArmaly\u306e\u8a08\u7b97\u5024\u3068CBC\u306e\u8a08\u7b97\u7d50\u679c\u3092\u6bd4\u8f03\u3057\u305f\uff0e<\/span><\/p>\n

\"\"<\/p>\n

\u3000Re=1000\u3067\u306f\uff0c3\u8005\u306eVelocity Profile\u306f\uff0cX\/S=6\u4ee5\u4e0a\u3067\uff0c\u5927\u304d\u304f\u305a\u308c\u3066\u3044\u308b\uff0eArmaly\u306e\u5b9f\u9a13\u306f3\u6b21\u5143\u3067\u884c\u308f\u308c\u3066\u304a\u308a\uff0c\u30ec\u30a4\u30ce\u30eb\u30ba\u6570400\u4ee5\u4e0a\u306b\u304a\u3044\u3066\u306f3\u6b21\u5143\u7684\u306a\u6d41\u308c\u304c\u751f\u3058\u308b\u3053\u3068\u304c\u793a\u3055\u308c\u3066\u3044\u308b\uff0e\u8a08\u7b97\u306f2\u6b21\u5143\u3067\u884c\u308f\u308c\u3066\u304a\u308a\u4e8c\u6b21\u6d41\u3092\u751f\u3058\u306a\u3044\u3053\u3068\uff0c\u307e\u305f\u672c\u8a08\u7b97\u3068Armaly\u306e\u8a08\u7b97\u306f\u683c\u5b50\u30b5\u30a4\u30ba\u306e\u9055\u3044\u304cVelocity Profile\u306e\u305a\u308c\u3092\u751f\u3093\u3067\u3044\u308b\u3068\u8003\u3048\u3089\u308c\u308b\uff0e<\/span><\/p>\n

\u3000\u3088\u308a\u8a73\u7d30\u306b\u306f\uff0c\u300cbackstep.pdf\u300d<\/a>\u3092\u3054\u53c2\u7167\u4e0b\u3055\u3044\uff0e<\/span><\/p>\n

\u4eca\u5f8c\u306e\u8ab2\u984c<\/span><\/p>\n