{"id":1635,"date":"2026-10-30T21:00:00","date_gmt":"2026-10-30T12:00:00","guid":{"rendered":"https:\/\/quantumsea.net\/?p=1635"},"modified":"2026-10-27T21:20:32","modified_gmt":"2026-10-27T12:20:32","slug":"qs-ftcs-heat-stability-20261025","status":"publish","type":"post","link":"https:\/\/quantumsea.net\/?p=1635","title":{"rendered":"\u71b1\u65b9\u7a0b\u5f0f\u306eFTCS\u6cd5\u3001\u683c\u5b50\u3092\u7d30\u304b\u304f\u3059\u308b\u3068\u6642\u9593\u523b\u307f\u304c\u53b3\u3057\u304f\u306a\u308b\u7406\u7531"},"content":{"rendered":"<p>\u71b1\u306e\u5e83\u304c\u308a\u3092\u7d30\u304b\u304f\u8a08\u7b97\u3057\u3088\u3046\u3068\u3001\u4f4d\u7f6e\u306e\u9593\u9694\u3092\u534a\u5206\u306b\u3059\u308b\u3002\u3068\u3053\u308d\u304c\u6642\u9593\u306e\u523b\u307f\u3092\u305d\u306e\u307e\u307e\u306b\u3059\u308b\u3068\u3001\u6e29\u5ea6\u304c\u4e00\u3064\u304a\u304d\u306b\u4e0a\u4e0b\u3057\u3001\u8a08\u7b97\u3092\u9032\u3081\u308b\u307b\u3069\u632f\u308c\u5e45\u304c\u5927\u304d\u304f\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u71b1\u304c\u767a\u751f\u3057\u305f\u306e\u3067\u306f\u306a\u304f\u3001\u8a08\u7b97\u624b\u9806\u304c\u5c0f\u3055\u306a\u51f9\u51f8\u3092\u5897\u5e45\u3057\u3066\u3044\u308b\u72b6\u614b\u3067\u3059\u3002<\/p>\n<p>\u71b1\u65b9\u7a0b\u5f0f\u3092\u89e3\u304f<strong>FTCS\u6cd5<\/strong>\u306f\u3001\u4eca\u3042\u308b\u6e29\u5ea6\u304b\u3089\u6b21\u306e\u6642\u523b\u306e\u6e29\u5ea6\u3092\u76f4\u63a5\u6c42\u3081\u308b\u3001\u6bd4\u8f03\u7684\u5358\u7d14\u306a\u65b9\u6cd5\u3067\u3059\u3002\u305d\u306e\u6271\u3044\u3084\u3059\u3055\u3068\u5f15\u304d\u63db\u3048\u306b\u3001\u4f4d\u7f6e\u3068\u6642\u9593\u306e\u523b\u307f\u3092\u5225\u3005\u306b\u306f\u6c7a\u3081\u3089\u308c\u307e\u305b\u3093\u3002\u306a\u305c\u683c\u5b50\u3092\u7d30\u304b\u304f\u3059\u308b\u3068\u6642\u9593\u523b\u307f\u3082\u53b3\u3057\u304f\u306a\u308b\u306e\u304b\u3092\u3001\u66f4\u65b0\u5f0f\u3068\u77ed\u3044\u8a08\u7b97\u4f8b\u304b\u3089\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<section class=\"influvetor-quick-summary\" aria-label=\"\u7c21\u5358\u306b\u307e\u3068\u3081\u308b\u3068\uff1f\">\n<p><strong>\u7c21\u5358\u306b\u307e\u3068\u3081\u308b\u3068\uff1f<\/strong><\/p>\n<ul>\n<li>\u4e00\u5b9a\u306e\u71b1\u62e1\u6563\u7387\u3092\u6301\u3064\u4e00\u6b21\u5143\u306e\u71b1\u65b9\u7a0b\u5f0f\u3067\u306f\u3001FTCS\u6cd5\u306e\u5b89\u5b9a\u6027\u3092r = \u03b1\u0394t\/\u0394x\u00b2\u3068\u3044\u3046\u6bd4\u3067\u8abf\u3079\u3089\u308c\u307e\u3059\u3002\u5468\u671f\u5883\u754c\u306e\u4e00\u69d8\u683c\u5b50\u3067\u3001\u3059\u3079\u3066\u306e\u6ce2\u6570\u6210\u5206\u3092\u5897\u5e45\u3057\u306a\u3044\u6761\u4ef6\u306f0 \u2264 r \u2264 1\/2\u3067\u3059\u3002<\/li>\n<li>\u540c\u3058r\u3092\u4fdd\u3064\u306b\u306f\u3001\u4f4d\u7f6e\u306e\u9593\u9694\u0394x\u3092\u534a\u5206\u306b\u3059\u308b\u3068\u3001\u6642\u9593\u523b\u307f\u0394t\u30924\u5206\u306e1\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li>\u767a\u6563\u3057\u306a\u3044\u3053\u3068\u3068\u3001\u6e29\u5ea6\u5909\u5316\u3092\u6b63\u78ba\u306b\u518d\u73fe\u3059\u308b\u3053\u3068\u306f\u5225\u3067\u3059\u3002\u5883\u754c\u5024r = 1\/2\u3067\u306f\u3001\u683c\u5b50\u70b9\u3054\u3068\u306b\u4ea4\u4e92\u306b\u5909\u308f\u308b\u6a21\u69d8\u304c\u6e1b\u8870\u305b\u305a\u6b8b\u308b\u4f8b\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/section>\n<h2>\u6b21\u306e\u6e29\u5ea6\u3092\u3001\u4eca\u306e\u4e09\u3064\u306e\u6e29\u5ea6\u304b\u3089\u6c42\u3081\u308b<\/h2>\n<p>\u3053\u3053\u3067\u306f\u5185\u90e8\u306b\u71b1\u6e90\u304c\u306a\u304f\u3001\u71b1\u62e1\u6563\u7387\u03b1\u304c\u4e00\u5b9a\u3067\u6b63\u306e\u5024\u3092\u6301\u3064\u3001\u4e00\u6b21\u5143\u306e\u71b1\u65b9\u7a0b\u5f0f\u3092\u8003\u3048\u307e\u3059\u3002\u6e29\u5ea6\u3092T\u3001\u4f4d\u7f6e\u3092x\u3001\u6642\u9593\u3092t\u3068\u3059\u308b\u3068\u3001\u5f0f\u306f\u2202T\/\u2202t = \u03b1\u2202\u00b2T\/\u2202x\u00b2\u3067\u3059\u3002\u03b1\u306e\u5358\u4f4d\u306fm\u00b2\/s\u3067\u3001\u6e29\u5ea6\u306e\u51f9\u51f8\u304c\u306a\u3089\u3055\u308c\u308b\u901f\u3055\u306b\u95a2\u4fc2\u3057\u307e\u3059\u3002<\/p>\n<p>FTCS\u306fForward Time, Centered Space\u306e\u7565\u3067\u3059\u3002\u6642\u9593\u65b9\u5411\u306f\u4eca\u304b\u3089\u4e00\u6b69\u5148\u3078\u306e\u5909\u5316\u3001\u7a7a\u9593\u65b9\u5411\u306f\u5de6\u53f3\u306e\u70b9\u3092\u4f7f\u3063\u3066\u5fae\u5206\u3092\u8fd1\u4f3c\u3057\u307e\u3059\u3002\u7b49\u9593\u9694\u0394x\u3067\u4e26\u3093\u3060\u683c\u5b50\u70b9\u306e\u3046\u3061\u3001i\u756a\u76ee\u306e\u6e29\u5ea6\u3092T<sub>i<\/sub>\u3068\u3057\u3001\u4e0a\u4ed8\u304d\u306en\u3092\u6642\u9593\u306e\u6bb5\u968e\u3068\u3059\u308b\u3068\u3001\u66f4\u65b0\u5f0f\u306f\u6b21\u306e\u5f62\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><code>T<sub>i<\/sub><sup>n+1<\/sup> = r T<sub>i\u22121<\/sub><sup>n<\/sup> + (1\u22122r) T<sub>i<\/sub><sup>n<\/sup> + r T<sub>i+1<\/sub><sup>n<\/sup><br \/>r = \u03b1\u0394t\/\u0394x\u00b2<\/code><\/p>\n<p>\u53f3\u8fba\u306b\u3042\u308b\u306e\u306f\u3001\u3059\u3079\u3066\u4eca\u306e\u6642\u523b\u306e\u6e29\u5ea6\u3067\u3059\u3002\u672a\u77e5\u306e\u6b21\u6642\u523b\u306e\u6e29\u5ea6\u3092\u307e\u3068\u3081\u3066\u89e3\u304f\u5fc5\u8981\u304c\u306a\u3044\u305f\u3081\u3001\u3053\u306e\u65b9\u6cd5\u306f<strong>\u967d\u89e3\u6cd5<\/strong>\u306b\u5206\u985e\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>r\u304c0\u304b\u30891\/2\u307e\u3067\u306a\u3089\u3001\u4e09\u3064\u306e\u91cd\u307fr\u30011\u22122r\u3001r\u306f\u3059\u3079\u30660\u4ee5\u4e0a\u3067\u3001\u8db3\u3059\u30681\u306b\u306a\u308a\u307e\u3059\u3002\u6b21\u306e\u6e29\u5ea6\u306f\u3001\u4eca\u306e\u81ea\u5206\u3068\u5de6\u53f3\u306e\u6e29\u5ea6\u306e\u7bc4\u56f2\u306b\u53ce\u307e\u308a\u307e\u3059\u3002\u4e00\u65b9\u3001r\u304c1\/2\u3092\u8d85\u3048\u308b\u3068\u4e2d\u592e\u306e\u91cd\u307f\u304c\u8ca0\u306b\u306a\u308a\u3001\u3053\u306e\u300c\u4e09\u70b9\u306e\u5e73\u5747\u3068\u3057\u3066\u66f4\u65b0\u3059\u308b\u300d\u3068\u3044\u3046\u6027\u8cea\u304c\u5931\u308f\u308c\u307e\u3059\u3002<\/p>\n<h2>\u4ea4\u4e92\u306b\u4e26\u3076\u5c0f\u3055\u306a\u51f9\u51f8\u304c\u3001\u6761\u4ef6\u3092\u6559\u3048\u3066\u304f\u308c\u308b<\/h2>\n<p>\u5897\u5e45\u306e\u4ed5\u65b9\u3092\u898b\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u30018\u500b\u306e\u683c\u5b50\u70b9\u3092\u8f2a\u306e\u3088\u3046\u306b\u3064\u306a\u304e\u3001\u53f3\u7aef\u306e\u6b21\u3092\u5de6\u7aef\u3068\u3059\u308b\u5468\u671f\u5883\u754c\u3092\u4f7f\u3044\u307e\u3059\u3002\u3042\u308b\u57fa\u6e96\u6e29\u5ea6\u304b\u3089\u306e\u5dee\u3092\u7121\u6b21\u5143\u5316\u3057\u3001\u521d\u3081\u306e\u5024\u3092+1\u3001\u22121\u3001+1\u3001\u22121\u2026\u2026\u3068\u4ea4\u4e92\u306b\u7f6e\u304d\u307e\u3059\u3002\u5b9f\u969b\u306e\u6750\u6599\u306e\u6e2c\u5b9a\u5024\u3067\u306f\u306a\u304f\u3001\u6570\u5024\u8a08\u7b97\u306e\u6319\u52d5\u3092\u8abf\u3079\u308b\u305f\u3081\u306e\u5165\u529b\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u4e26\u3073\u3067\u306f\u3001\u3042\u308b\u70b9\u306e\u5024\u304cu\u306a\u3089\u5de6\u53f3\u306f\u3069\u3061\u3089\u3082\u2212u\u3067\u3059\u3002\u66f4\u65b0\u5f0f\u306b\u5165\u308c\u308b\u3068\u3001\u6b21\u306e\u5024\u306f<strong>(1\u22124r)u<\/strong>\u306b\u306a\u308a\u307e\u3059\u3002r = 0.4\u3067\u306f\u6bce\u56de\u22120.6\u500d\u3001r = 0.5\u3067\u306f\u22121\u500d\u3001r = 0.6\u3067\u306f\u22121.4\u500d\u3067\u3059\u3002\u3069\u306e\u5834\u5408\u3082\u7b26\u53f7\u306f\u4ea4\u4ee3\u3057\u307e\u3059\u304c\u3001\u632f\u308c\u5e45\u306f\u9806\u306b\u5c0f\u3055\u304f\u306a\u308b\u3001\u5909\u308f\u3089\u306a\u3044\u3001\u5927\u304d\u304f\u306a\u308b\u3068\u3044\u3046\u9055\u3044\u304c\u51fa\u307e\u3059\u3002<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-ftcs-heat-stability-20261025-figure-5d7b51b7ea5e.png\" alt=\"8\u70b9\u306e\u5468\u671f\u683c\u5b50\u3067\u4ea4\u4e92\u306e\u521d\u671f\u5024\u309210\u56de\u66f4\u65b0\u3057\u305f\u72ec\u81ea\u8a08\u7b97\u3002\u632f\u308c\u5e45\u306e\u7d76\u5bfe\u5024\u306fr\u304c0.4\u306a\u3089\u7d040.00605\u30010.5\u306a\u30891\u30010.6\u306a\u3089\u7d0428.9\u3002\u7e26\u8ef8\u306f\u5bfe\u6570\u76ee\u76db\u3001\u6a2a\u8ef8\u306f\u66f4\u65b0\u56de\u6570\u3002\" style=\"max-width:100%;height:auto\"><figcaption>\u4ea4\u4e92\u306b\u4e26\u3076\u6e29\u5ea6\u5dee\u306e\u632f\u308c\u5e45\u3092\u3001\u521d\u671f\u50241\u304b\u3089\u8ffd\u3063\u305f\u72ec\u81ea\u8a08\u7b97\u3002\u7e26\u8ef8\u306f\u4e00\u76ee\u76db\u308a\u3054\u3068\u306b10\u500d\u306b\u306a\u308b\u5bfe\u6570\u76ee\u76db\u3067\u3001\u7b26\u53f7\u306e\u4ea4\u4ee3\u306f\u8868\u793a\u3057\u3066\u3044\u306a\u3044\u3002\u6a2a\u8ef8\u306f\u66f4\u65b0\u56de\u6570\u3067\u3042\u308a\u3001\u540c\u3058\u5b9f\u6642\u9593\u3067\u306e\u6bd4\u8f03\u3067\u306f\u306a\u3044\u3002Quantum Sea\u4f5c\u56f3\u3002<\/figcaption><\/figure>\n<p>10\u56de\u66f4\u65b0\u3059\u308b\u3068\u3001\u632f\u308c\u5e45\u306f\u305d\u308c\u305e\u308c\u7d040.00605\u30011\u300128.9\u306b\u306a\u308a\u307e\u3059\u3002r = 0.6\u306e\u30b1\u30fc\u30b9\u3067\u306f\u3001\u3054\u304f\u5c0f\u3055\u306a\u8aa4\u5dee\u3068\u3057\u3066\u6df7\u3058\u3063\u305f\u4ea4\u4e92\u306e\u6a21\u69d8\u3067\u3082\u3001\u66f4\u65b0\u3059\u308b\u305f\u3073\u306b\u80b2\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u3053\u308c\u304c\u6570\u5024\u7684\u4e0d\u5b89\u5b9a\u6027\u306e\u5177\u4f53\u4f8b\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u7d50\u679c\u306f\u3001\u7279\u5225\u306a\u4e26\u3073\u3060\u3051\u306e\u5076\u7136\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5468\u671f\u5883\u754c\u307e\u305f\u306f\u7121\u9650\u306b\u7d9a\u304f\u4e00\u69d8\u683c\u5b50\u3067\u3001\u51f9\u51f8\u3092\u6ce2\u306e\u6210\u5206\u306b\u5206\u3051\u3066\u8abf\u3079\u308b\u3068\u3001\u4e00\u56de\u306e\u66f4\u65b0\u3067\u306e\u500d\u7387\u306fG = 1 \u2212 4r sin\u00b2(k\u0394x\/2)\u3068\u306a\u308a\u307e\u3059\u3002k\u306f\u7a7a\u9593\u65b9\u5411\u306e\u6ce2\u6570\u3067\u3059\u3002\u3069\u306e\u6ce2\u6570\u3067\u3082|G| \u2264 1\u3092\u6e80\u305f\u3059\u6761\u4ef6\u304c0 \u2264 r \u2264 1\/2\u3067\u3001\u683c\u5b50\u70b9\u3054\u3068\u306b\u4ea4\u4e92\u306b\u306a\u308b\u6210\u5206\u306fsin\u00b2\u306e\u90e8\u5206\u304c1\u3068\u306a\u308b\u7aef\u306e\u30b1\u30fc\u30b9\u306b\u5f53\u305f\u308a\u307e\u3059\u3002<\/p>\n<h2>\u683c\u5b50\u5e45\u3092\u534a\u5206\u306b\u3057\u305f\u3089\u3001\u6642\u9593\u523b\u307f\u306f4\u5206\u306e1\u3078<\/h2>\n<p>\u6bd4r\u306e\u5206\u6bcd\u306b\u306f\u0394x\u306e\u4e8c\u4e57\u304c\u3042\u308a\u307e\u3059\u3002\u540c\u3058\u71b1\u62e1\u6563\u7387\u306e\u307e\u307e\u683c\u5b50\u5e45\u3060\u3051\u3092\u534a\u5206\u306b\u3059\u308b\u3068\u3001r\u306f4\u500d\u306b\u306a\u308a\u307e\u3059\u3002\u3082\u3068\u3082\u3068r = 0.4\u3067\u8a08\u7b97\u3057\u3066\u3044\u3066\u3082\u3001\u6642\u9593\u523b\u307f\u3092\u5909\u3048\u306a\u3051\u308c\u3070r = 1.6\u3068\u306a\u308a\u3001\u5b89\u5b9a\u7bc4\u56f2\u3092\u5927\u304d\u304f\u8d85\u3048\u307e\u3059\u3002\u540c\u3058r\u306b\u623b\u3059\u306b\u306f\u3001\u0394t\u30924\u5206\u306e1\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u8aac\u660e\u7528\u306b\u03b1 = 1 \u00d7 10\u207b\u2075 m\u00b2\/s\u3068\u7f6e\u304f\u3068\u3001\u0394x = 1 mm\u3067\u306e\u5883\u754c\u306f\u0394t = \u0394x\u00b2\/(2\u03b1) = 0.05\u79d2\u3067\u3059\u3002\u0394x = 0.5 mm\u306a\u30890.0125\u79d2\u306b\u306a\u308a\u307e\u3059\u3002\u7279\u5b9a\u306e\u6750\u6599\u3092\u63a8\u5968\u3059\u308b\u5024\u3067\u306f\u306a\u304f\u3001\u9577\u3055\u306e\u5358\u4f4d\u3092m\u306b\u305d\u308d\u3048\u3066\u8a08\u7b97\u3057\u305f\u4f8b\u3067\u3059\u3002\u5b9f\u969b\u306br = 0.4\u3092\u9078\u3076\u306a\u3089\u3001\u305d\u308c\u305e\u308c0.04\u79d2\u30680.01\u79d2\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u7d30\u304b\u306a\u683c\u5b50\u306b\u306f\u3001\u77ed\u3044\u8ddd\u96e2\u306b\u3042\u308b\u6025\u306a\u6e29\u5ea6\u5dee\u3082\u8868\u305b\u308b\u3068\u3044\u3046\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u305d\u306e\u7d30\u304b\u306a\u51f9\u51f8\u3092\u967d\u89e3\u6cd5\u3067\u8ffd\u3046\u306b\u306f\u3001\u6642\u9593\u65b9\u5411\u3082\u5c0f\u523b\u307f\u306b\u9032\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u7a7a\u9593\u306e\u89e3\u50cf\u5ea6\u3092\u4e0a\u3052\u305f\u3068\u304d\u306b\u3001\u8a08\u7b97\u6642\u9593\u307e\u3067\u5897\u3048\u308b\u7406\u7531\u306e\u4e00\u3064\u3067\u3059\u3002<\/p>\n<h2>\u5b89\u5b9a\u7bc4\u56f2\u306b\u5165\u3063\u305f\u5f8c\u3067\u3001\u7cbe\u5ea6\u3092\u78ba\u304b\u3081\u308b<\/h2>\n<p>r = 0.5\u306e\u8a08\u7b97\u3067\u306f\u3001\u4ea4\u4e92\u306e\u6a21\u69d8\u306f\u767a\u6563\u3057\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u3057\u304b\u3057\u632f\u308c\u5e45\u304c1\u306e\u307e\u307e\u6b8b\u308b\u306e\u3067\u3001\u71b1\u306b\u3088\u3063\u3066\u51f9\u51f8\u304c\u306a\u3089\u3055\u308c\u308b\u69d8\u5b50\u3092\u9069\u5207\u306b\u8868\u3057\u3066\u3044\u308b\u3068\u306f\u8a00\u3048\u307e\u305b\u3093\u3002\u5b89\u5b9a\u6761\u4ef6\u306f\u3001\u8aa4\u5dee\u3092\u969b\u9650\u306a\u304f\u5897\u5e45\u3055\u305b\u306a\u3044\u305f\u3081\u306e\u6761\u4ef6\u3067\u3059\u3002\u305d\u308c\u3060\u3051\u3067\u3001\u6b32\u3057\u3044\u6e29\u5ea6\u5206\u5e03\u304c\u6b63\u78ba\u306b\u5f97\u3089\u308c\u305f\u3053\u3068\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u8a08\u7b97\u3092\u78ba\u8a8d\u3059\u308b\u3068\u304d\u306f\u3001\u307e\u305a\u63a1\u7528\u3057\u305f\u65b9\u7a0b\u5f0f\u30fb\u683c\u5b50\u30fb\u5883\u754c\u6761\u4ef6\u306b\u5408\u3046\u5b89\u5b9a\u6761\u4ef6\u3092\u8abf\u3079\u3001\u305d\u306e\u7bc4\u56f2\u5185\u3067\u683c\u5b50\u5e45\u3068\u6642\u9593\u523b\u307f\u3092\u5c0f\u3055\u304f\u3057\u305f\u7d50\u679c\u3092\u6bd4\u8f03\u3057\u307e\u3059\u3002\u6e29\u5ea6\u306e\u6700\u5927\u5024\u3084\u6ce8\u76ee\u3059\u308b\u4f4d\u7f6e\u306e\u5909\u5316\u304c\u3001\u7d30\u5206\u5316\u3057\u3066\u3082\u5341\u5206\u5909\u308f\u3089\u306a\u304f\u306a\u3063\u305f\u304b\u3092\u898b\u308b\u305f\u3081\u3067\u3059\u3002\u71b1\u62e1\u6563\u7387\u304c\u5834\u6240\u3067\u5909\u308f\u308b\u5834\u5408\u3001\u591a\u6b21\u5143\u306e\u5834\u5408\u3001\u5225\u306e\u5883\u754c\u51e6\u7406\u3084\u6642\u9593\u7a4d\u5206\u6cd5\u3092\u4f7f\u3046\u5834\u5408\u306b\u306f\u3001\u3053\u3053\u3067\u793a\u3057\u305f\u4e00\u6b21\u5143FTCS\u6cd5\u306e\u5f0f\u3092\u305d\u306e\u307e\u307e\u4f7f\u3046\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<h2>\u51fa\u5178<\/h2>\n<ul>\n<li><a href=\"https:\/\/web.cecs.pdx.edu\/~gerry\/class\/ME448\/notes\/1Dmodels\/pdf\/FTCS_nutshell.pdf\">Gerry Recktenwald, FTCS for the 1D Heat Equation, in a Nutshell<\/a>\u3001Portland State University\u3001Winter 2020\u30011\u301c2\u30da\u30fc\u30b8\u3002\u66f4\u65b0\u5f0f\u3001\u5b89\u5b9a\u6761\u4ef6\u3001\u523b\u307f\u3068\u8aa4\u5dee\u306e\u95a2\u4fc2\u3002<\/li>\n<li><a href=\"https:\/\/john-s-butler-dit.github.io\/NumericalAnalysisBook\/Chapter%2008%20-%20Heat%20Equations\/801_Heat%20Equation-%20FTCS.html\">John S Butler, The Explicit Forward Time Centered Space (FTCS) Difference Equation for the Heat Equation<\/a>\u3001Numerical Analysis with Applications in Python\u3002\u300cStability Analysis\u300d\u306e\u5897\u5e45\u56e0\u5b50\u3002\u7248\u65e5\u4ed8\u306e\u8a18\u8f09\u304c\u306a\u3044\u516c\u958bHTML\u30922026\u5e7410\u670825\u65e5\u306b\u78ba\u8a8d\u3002\u672c\u6587\u306e8\u70b9\u5468\u671f\u683c\u5b50\u3068\u6570\u5024\u30fb\u56f3\u306f\u3001\u660e\u793a\u3057\u305f\u66f4\u65b0\u5f0f\u306b\u3088\u308b\u72ec\u81ea\u8a08\u7b97\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u71b1\u306e\u5e83\u304c\u308a\u3092\u7d30\u304b\u304f\u8a08\u7b97\u3057\u3088\u3046\u3068\u3001\u4f4d\u7f6e\u306e\u9593\u9694\u3092\u534a\u5206\u306b\u3059\u308b\u3002\u3068\u3053\u308d\u304c\u6642\u9593\u306e\u523b\u307f\u3092\u305d\u306e\u307e\u307e\u306b\u3059\u308b\u3068\u3001\u6e29\u5ea6\u304c\u4e00\u3064\u304a\u304d\u306b\u4e0a\u4e0b\u3057\u3001\u8a08\u7b97\u3092\u9032\u3081\u308b\u307b\u3069\u632f\u308c\u5e45\u304c\u5927\u304d\u304f\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u71b1\u304c\u767a\u751f\u3057\u305f\u306e\u3067\u306f\u306a\u304f\u3001\u8a08\u7b97\u624b\u9806\u304c\u5c0f\u3055\u306a\u51f9\u51f8\u3092\u5897\u5e45\u3057 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1633,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":false,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[31],"tags":[331],"class_list":["post-1635","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ai-software","tag-ftcs-method"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-ftcs-heat-stability-20261025-featured-c817ae3d0d32.png","_links":{"self":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1635","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1635"}],"version-history":[{"count":1,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1635\/revisions"}],"predecessor-version":[{"id":1636,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1635\/revisions\/1636"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/media\/1633"}],"wp:attachment":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}