{"id":1275,"date":"2014-03-23T22:29:52","date_gmt":"2014-03-23T13:29:52","guid":{"rendered":"http:\/\/www.cenav.org\/kdb\/?p=1275"},"modified":"2017-10-05T08:34:56","modified_gmt":"2017-10-04T23:34:56","slug":"%e5%a3%81%e9%9d%a2%e4%b8%8a%e3%81%ab%e7%bd%ae%e3%81%8b%e3%82%8c%e3%81%9f%e7%ab%8b%e6%96%b9%e4%bd%93%e9%9a%9c%e5%ae%b3%e7%89%a9%e5%91%a8%e8%be%ba%e3%81%ae%e6%b5%81%e3%82%8c-flow-around-surface-mounted","status":"publish","type":"post","link":"https:\/\/www.cenav.org\/kdb\/?p=1275","title":{"rendered":"\u58c1\u9762\u4e0a\u306b\u7f6e\u304b\u308c\u305f\u7acb\u65b9\u4f53\u969c\u5bb3\u7269\u5468\u8fba\u306e\u6d41\u308c: Flow Around Surface-Mounted Cubical Obstacle (ERCOFTAC SIG15 Case6.3)"},"content":{"rendered":"

\u6982\u8981<\/h3>\n

\u3053\u3053\u3067\u306fOpenFOAM[OpenFOAM]<\/a>\u3092\u7528\u3044\u3066\uff0cERCOFTAC SIG15[SIG15]<\/a>\u306eCase 6.3: Flow Around Surface-Mounted Cubical Obstacle[Case6.3]<\/a>\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u30c6\u30b9\u30c8\u3092\u884c\u306a\u3063\u305f\u7d50\u679c\u3092\u7d39\u4ecb\u3059\u308b\uff0eCase6.3\u3067\u306f\uff0cOpenFOAM\u306esimpleFoam\u3092\u7528\u3044\u3066\uff0c\u30c1\u30e3\u30f3\u30cd\u30eb\u5185\u306e\u7247\u65b9\u306e\u58c1\u9762\u4e0a\u306b\u7f6e\u304b\u308c\u305f\u7acb\u65b9\u4f53\u969c\u5bb3\u7269\u5468\u8fba\u306e\u6d41\u308c\u306e\u89e3\u6790\u3092\u884c\u3044\uff0cMartinuzzi\u3089\u306e\u5b9f\u9a13\u7d50\u679c[cfdval1993]<\/a>\u3068\u6bd4\u8f03\u3092\u3059\u308b\uff0e<\/p>\n

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

\u89e3\u6790\u9818\u57df\u306f10H\u00d73.5H\u00d72H\u3067\uff0c\u6d41\u308c\u304cx\u65b9\u5411\u306b\u5411\u304b\u3063\u3066\u6d41\u5165\u3059\u308b\uff0e\u9577\u3055\u306e\u5358\u4f4d\u306f[m]\u3067\u3042\u308b\uff0eMartinuzzi\u3089\u306e\u5b9f\u9a13\u7d50\u679c[cfdval1993]<\/a>\u3067\u306f\u9ad8\u3055\u65b9\u5411\u306fy\u8ef8\u3060\u304c\uff0c\u89e3\u6790\u30e2\u30c7\u30eb\u3067\u306fz\u8ef8\u3067\u5b9a\u7fa9\u3059\u308b\uff0e\u89e3\u6790\u30e2\u30c7\u30eb\u306exy\u65ad\u9762\u56f3\uff0cxz\u65ad\u9762\u56f3\u3092\u4ee5\u4e0b\u306b\u793a\u3059\uff0e<\/p>\n

\"image001\"<\/a><\/strong><\/p>\n

Fig. \u89e3\u6790\u30e2\u30c7\u30eb\u306exy\u65ad\u9762\u56f3<\/strong> \"image003\"<\/a>Fig. \u89e3\u6790\u30e2\u30c7\u30eb\u306exz\u65ad\u9762\u56f3<\/strong><\/p>\n

\u8a08\u7b97\u683c\u5b50<\/h3>\n

\u683c\u5b50\u751f\u6210\u306b\u306fOpenFOAM\u306e6\u9762\u4f53\u683c\u5b50\u3092\u751f\u6210\u3059\u308b\u30c4\u30fc\u30ebblockMesh\u3092\u7528\u3044\u308b\uff0e\u683c\u5b50\u30bf\u30a4\u30d7\u306f\u5168\u3066\uff16\u9762\u4f53\u3067\uff0c\u7bc0\u70b9\u6570\u306f99,151\uff0c\u30bb\u30eb\u6570\u306f92,000\u3067\u3042\u308b\uff0e\u8a08\u7b97\u683c\u5b50\u3092\u4ee5\u4e0b\u306b\u793a\u3059\uff0e<\/p>\n

\"image006\"<\/a>Fig. \u8a08\u7b97\u683c\u5b50(6\u9762\u4f53)<\/strong><\/p>\n

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

\u30d1\u30e9\u30e1\u30fc\u30bf<\/h4>\n

Table. \u30d1\u30e9\u30e1\u30fc\u30bf<\/strong><\/p>\n\n\n\n\n\n\n\n
\u7acb\u65b9\u4f53\u306e\u9577\u3055<\/td>\nH<\/em><\/td>\n0.025 [m]<\/td>\n<\/tr>\n
\u6d41\u5165\u901f\u5ea6<\/td>\nU<\/em><\/td>\nx<\/em>=-3H<\/em>\u306e\u5b9f\u6e2c\u30c7\u30fc\u30bf\u304b\u3089\u7b97\u51fa\u3057\u305f\u5024<\/td>\n<\/tr>\n
\u6d41\u5165\u5e73\u5747\u901f\u5ea6<\/td>\nUm<\/sub><\/em><\/td>\n19.41[m\/s]<\/td>\n<\/tr>\n
\u52d5\u7c98\u6027\u4fc2\u6570<\/td>\n\u03bd<\/em><\/td>\n1.5 \u00d7 10-6<\/sup>[m2<\/sup>\/s]<\/td>\n<\/tr>\n
\u4e71\u6d41\u30e2\u30c7\u30eb<\/td>\nRAS<\/td>\n\u6a19\u6e96k-\u03b5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

\u5883\u754c\u6761\u4ef6<\/h4>\n

\u8a08\u7b97\u30e2\u30c7\u30eb\u306e\u5916\u90e8\u5883\u754c\u9762(patch)\u306e\u540d\u524d\u3092\u8aac\u660e\u3057\u305f\u30c1\u30e3\u30fc\u30c8\uff0c\u5404\u5883\u754c\u9762\u306b\u304a\u3051\u308b\u5404\u30d5\u30a3\u30fc\u30eb\u30c9\u5909\u6570\u306e\u5177\u4f53\u7684\u306a\u5883\u754c\u6761\u4ef6\u3092\u4ee5\u4e0b\u306b\u793a\u3059\uff0e
\n\u6d41\u5165\u5883\u754c\u6761\u4ef6\u3067\u306f\uff0cx=-3H\u306e\u5b9f\u6e2c\u30c7\u30fc\u30bf\u304b\u3089\u7b97\u51fa\u3057\u305f\u5024\u3092\u5883\u754c\u6761\u4ef6timeVaryingMappedFixedValue\u3067\u6307\u5b9a\u3059\u308b\uff0e
\n\u683c\u5b50\u6570\u3092\u524a\u6e1b\u3059\u308b\u305f\u3081\u306b\uff0cy=3.5H\u306b\u5bfe\u79f0\u9762\u306e\u5883\u754c\u6761\u4ef6symmetryPlane\u3092\u6307\u5b9a\u3059\u308b\uff0e<\/p>\n

\"image008\"<\/p>\n

Fig. \u5883\u754c\u6761\u4ef6<\/strong><\/p>\n

Table. \u5883\u754c\u6761\u4ef6\u4e00\u89a7<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n
\u5883\u754c\u9762<\/td>\n\u5883\u754c\u30bf\u30a4\u30d7<\/td>\n\u901f\u5ea6U<\/td>\n\u5727\u529bp<\/td>\n\u4e71\u6d41\u30a8\u30cd\u30eb\u30ae\u30fck<\/td>\n\u6563\u9038\u7387\u03b5<\/td>\n\u6e26\u7c98\u6027nut<\/td>\n<\/tr>\n
inlet<\/td>\npatch<\/td>\n\u5b9f\u6e2c\u30c7\u30fc\u30bf\u3092\u6307\u5b9a<\/td>\n\u52fe\u914d0<\/td>\n\u5b9f\u6e2c\u30c7\u30fc\u30bf\u3092\u6307\u5b9a<\/td>\n\u5b9f\u6e2c\u30c7\u30fc\u30bf\u3092\u6307\u5b9a<\/td>\n\u81ea\u52d5\u7684\u306b\u8a08\u7b97<\/td>\n<\/tr>\n
outlet<\/td>\npatch<\/td>\n\u52fe\u914d0<\/td>\n0<\/td>\n\u52fe\u914d0<\/td>\n\u52fe\u914d0<\/td>\n\u81ea\u52d5\u7684\u306b\u8a08\u7b97<\/td>\n<\/tr>\n
slip<\/td>\npatch<\/td>\nslip\u6761\u4ef6<\/td>\nslip\u6761\u4ef6<\/td>\nslip\u6761\u4ef6<\/td>\nslip\u6761\u4ef6<\/td>\nslip\u6761\u4ef6<\/td>\n<\/tr>\n
plate<\/td>\nwall<\/td>\nnon-slip\u6761\u4ef6<\/td>\n\u52fe\u914d0<\/td>\n\u58c1\u95a2\u6570<\/td>\n\u58c1\u95a2\u6570<\/td>\n\u58c1\u95a2\u6570<\/td>\n<\/tr>\n
cube<\/td>\nwall<\/td>\nnon-slip\u6761\u4ef6<\/td>\n\u52fe\u914d0<\/td>\n\u58c1\u95a2\u6570<\/td>\n\u58c1\u95a2\u6570<\/td>\n\u58c1\u95a2\u6570<\/td>\n<\/tr>\n
sym<\/td>\nsymmetryPlane<\/td>\n\u5bfe\u79f0\u9762<\/td>\n\u5bfe\u79f0\u9762<\/td>\n\u5bfe\u79f0\u9762<\/td>\n\u5bfe\u79f0\u9762<\/td>\n\u5bfe\u79f0\u9762<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0<\/strong><\/p>\n

\u89e3\u6790\u7d50\u679c<\/h3>\n

\u4e2d\u5fc3\u65ad\u9762(y=3.5H)\u306b\u304a\u3051\u308b\u5727\u529b\u5206\u5e03\u3068\u901f\u5ea6\u5206\u5e03\u306e\u30b3\u30f3\u30bf\u30fc\u56f3\uff0c\u6d41\u7dda\u3092\u4ee5\u4e0b\u306b\u793a\u3059\uff0e<\/p>\n

\"image009\"<\/a>Fig. \u4e2d\u5fc3\u65ad\u9762\u306b\u304a\u3051\u308b\u5727\u529b\u5206\u5e03<\/strong><\/p>\n

\"image011\"<\/a>Fig. \u4e2d\u5fc3\u65ad\u9762\u306b\u304a\u3051\u308b\u901f\u5ea6\u5206\u5e03<\/strong><\/p>\n

\"image014\"<\/a>Fig. \u4e2d\u5fc3\u65ad\u9762\u306b\u304a\u3051\u308b\u6d41\u7dda<\/strong><\/p>\n

\u901f\u5ea6\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb<\/h4>\n

\u4e2d\u5fc3\u65ad\u9762(y=3.5H)\u306b\u304a\u3051\u308b\u4e3b\u529b\u65b9\u5411\u306e\u901f\u5ea6\u5206\u5e03\u3092\u672c\u8a08\u7b97\u7d50\u679c(CFD)\u3068Matinuzzi\u3089[cfdval1993]<\/a>\u306e\u5b9f\u9a13\u7d50\u679c(Exp)\u3068\u6bd4\u8f03\u3057\u305f\u3082\u306e\u3092\u4ee5\u4e0b\u306b\u793a\u3059\uff0e
\n\u306a\u304a\uff0c\u8a08\u7b97\u5024\u306e\u901f\u5ea6\u6210\u5206\u306e\u7121\u6b21\u5143\u5316\u306b\u306f\uff0c\u6d41\u5165\u90e8\u306e\u5e73\u5747\u901f\u5ea6\uff08Um<\/sub><\/em>=19.41[m\/s]\uff09\u3092\u4f7f\u7528\u3057\u305f\uff0e<\/p>\n

\"image016\"<\/a> \"image018\"<\/a> <\/strong>\"image020\"\"image022\"<\/a>\"image024\"<\/a> \"image026\"<\/a> \"image028\"<\/a> \"image030\"<\/a><\/strong><\/p>\n

Fig. \u4e2d\u5fc3\u65ad\u9762\u306b\u304a\u3051\u308b\u4e3b\u65b9\u5411\u306e\u901f\u5ea6\u5206\u5e03<\/strong><\/p>\n

\u3053\u308c\u3089\u306e\u7d50\u679c\u304b\u3089\uff0c\u7acb\u65b9\u4f53\u4ed8\u8fd1\u306f\u5b9f\u9a13\u5024\u306b\u8fd1\u3044\u5024\u3092\u518d\u73fe\u3067\u304d\u305f\uff0e\u3053\u306e\u3053\u3068\u304b\u3089\uff0c\u7acb\u65b9\u4f53\u524d\u65b9\u90e8\u306e\u5265\u96e2\u57df\u3084\u4e0a\u6bb5\u90e8\u306e\u518d\u5faa\u74b0\u57df\u306e\u8907\u96d1\u306a\u6d41\u308c\u306e\u7279\u5fb4\u3092\u6349\u3048\u3066\u3044\u308b\uff0e<\/p>\n

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