{"id":52871,"date":"2021-03-04T18:11:41","date_gmt":"2021-03-04T18:11:41","guid":{"rendered":"\/forum\/forums\/topic\/ansys-insight-fdtd%e7%ae%97%e6%b3%95%e4%b8%adpml%e7%9a%84%e7%b1%bb%e5%9e%8b%e5%92%8c%e9%80%89%e6%8b%a9\/"},"modified":"2022-08-09T09:39:20","modified_gmt":"2022-08-09T09:39:20","slug":"ansys-insight-fdtdsuanfazhongpmldeleixinghexuanze","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-insight-fdtdsuanfazhongpmldeleixinghexuanze\/","title":{"rendered":"Ansys Insight: FDTD\u7b97\u6cd5\u4e2dpml\u7684\u7c7b\u578b\u548c\u9009\u62e9"},"content":{"rendered":"
\n
\n

FDTD \u548cMODE \u4e2d\u7684varFDTD\u6700\u5e38\u7528\u7684\u8fb9\u754c\u6761\u4ef6\u5c31\u662fPML\u3002PML\u5168\u79f0\u662fPerfectly matched layer\u00a0<\/a>\u5373\u5b8c\u7f8e\u5339\u914d\u5c42\uff0c\u662f\u7531\u6cd5\u56fd\u79d1\u5b66\u5bb6Berenger\u4e8e1994\u5e74\u63d0\u51fa\u7684\u3002\u5728FDTD\u53d1\u5c55\u7684\u8fc7\u7a0b\u4e2d\uff0c\u8fd9\u4e2a\u8fb9\u754c\u6761\u4ef6\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u91cc\u7a0b\u7891\u3002\u5728\u6b64\u4e4b\u524d\uff0c\u5982\u4f55\u4eff\u771f\u7535\u78c1\u6ce2\u4f20\u8f93\u5230\u65e0\u9650\u8fdc\u7684\u95ee\u9898\uff0c\u5df2\u7ecf\u6709\u51e0\u79cd\u8fb9\u754c\u6761\u4ef6\u5c06\u4eff\u771f\u533a\u622a\u65ad\uff0c\u4f46\u90fd\u4e0d\u662f\u5f88\u7406\u60f3\uff0c\u4e5f\u5c31\u662f\u90fd\u6709\u4e00\u5b9a\u91cf\u7684\u53cd\u5c04\uff0c\u8fd9\u4e9b\u53cd\u5c04\u6ce2\u53c8\u8fd4\u56de\u4eff\u771f\u533a\u57df\u7269\u4f53\u76f8\u4e92\u4f5c\u7528\uff0c\u4e25\u91cd\u5f71\u54cd\u4eff\u771f\u7684\u7cbe\u5ea6\u3002\u5728\u6b63\u786e\u8bbe\u7f6e\u548cPML\u4e0a\u5165\u5c04\u89d2\u4e0d\u662f\u975e\u5e38\u5927\u7684\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u8f6f\u4ef6\u63d0\u4f9b\u7684PML\u53ef\u4ee5\u8fbe\u5230\u975e\u5e38\u4f4e\u7684\u53cd\u5c04\u3002\u9700\u8981\u8bf4\u660e\u7684\u662f\uff0c\u6240\u6709\u8f6f\u4ef6\u4eff\u771f\u65f6\u90fd\u9700\u8981\u628aPML\u533a\u57df\u8003\u8651\u8fdb\u53bb\uff0c\u56e0\u6b64\uff0c\u4e3a\u4e86\u51cf\u5c0f\u5185\u5b58\u9700\u6c42\uff0c\u4e00\u822c\u6765\u8bf4\u5e94\u8be5\u5728\u57fa\u672c\u6ee1\u8db3\u4eff\u771f\u7cbe\u5ea6\u7684\u524d\u63d0\u4e0b\u5c3d\u53ef\u80fd\u9009\u53d6\u5c11\u5c42\u6570\u3002<\/p>\n

\u8f6f\u4ef6\u7f3a\u7701\u7684\u4e5f\u662f\u6211\u4eec\u6781\u529b\u63a8\u8350\u7684\u662fstretched-coordinate PML\u3002\u4e3a\u4e86\u65b9\u4fbf\u7528\u6237\u4f7f\u7528\uff0c\u6211\u4eec\u5c06\u8fd9\u79cd\u6280\u672f\u5206\u4e3a\u51e0\u79cd\u60c5\u51b5\uff0c\u5c4a\u65f6\u53ea\u8981\u9009\u53d6\u5408\u9002\u7684PML\u00a0<\/a>\uff08\u5b98\u7f51\u8fde\u63a5\uff09\u53ef\u4ee5\u4e86\uff1a<\/p>\n

    \n
  1. Standard \u8be5\u8bbe\u7f6e\u9488\u5bf9\u5927\u591a\u6570\u5e94\u7528\u80fd\u591f\u5728\u4f7f\u7528\u6700\u5c11\u5c42\u6570\u60c5\u51b5\u4e0b\u63d0\u4f9b\u5f88\u597d\u7684\u5438\u6536\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\u7269\u4f53\u5e94\u8be5\u7a7f\u900fPML\u3002\u5982\u679c\u7269\u4f53\u4ec5\u5ef6\u4f38\u5230PML\u91cc\u9762\u4e00\u90e8\u5206\uff08\u4f8b\u5982\u4e00\u4e9b\u5149\u5b50\u6676\u4f53\u5668\u4ef6\uff09\uff0c\u6709\u53ef\u80fd\u4ea7\u751f\u4eff\u771f\u53d1\u6563\uff0c\u6b64\u65f6\u53ef\u4ee5\u9009\u7528Stabilized<\/li>\n
  2. Stabilized \u4e3a\u4e86\u964d\u4f4e\u4eff\u771f\u53d1\u6563\u7684\u53ef\u80fd\u6027\uff0c\u6b64PML\u9009\u7528\u66f4\u591a\u7684\u5c42\u6570\u4f46\u662f\u66f4\u7f13\u6162\u7684\u5438\u6536\u3002<\/li>\n
  3. Steep Angle \u5f53\u4eff\u771f\u533a\u7684\u7535\u78c1\u573a\u4e00\u8f83\u5927\u89d2\u5ea6\u5165\u5c04\u5230PML\u4e0a\u65f6\uff0c\u4f8b\u5982\u4e00\u4e9b\u5468\u671f\u7ed3\u6784\uff0c\u5bf9PML\u8981\u6c42\u66f4\u9ad8\uff0c\u6b64\u65f6\u53ef\u4ee5\u9009\u7528<\/li>\n
  4. Custom \u524d\u9762\u4e09\u79cdPML\u7684\u6750\u6599\u53c2\u6570\u90fd\u662f\u56fa\u5b9a\u7684\uff0c\u7528\u6237\u53ea\u80fd\u8c03\u6574\u5c42\u6570\u3002\u5bf9\u4e8e\u6709\u7ecf\u9a8c\u7684\u7528\u6237\uff0c\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574PML\u7684\u6750\u6599\u53c2\u6570\u5b9e\u73b0\u66f4\u597d\u7684\u6027\u80fd\u3002<\/li>\n<\/ol>\n

    \u6839\u636e\u9700\u8981\uff0c\u7528\u6237\u53ef\u4ee5\u5c06\u6240\u6709\u9700\u8981PML\u7684\u65b9\u5411\u8bbe\u7f6e\u4e3a\u76f8\u540c\u7684PML\uff0c\u4f8b\u5982\u6563\u5c04\u95ee\u9898\uff0c\u4e5f\u53ef\u4ee5\u8bbe\u7f6e\u4e3a\u4e0d\u540c\u7684PML\uff0c\u4f8b\u5982\u73af\u5f62\u8c10\u632f\u8154\u5668\u4ef6\u3002\u4e0d\u540c\u65b9\u5411\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684PML\uff0c \u4f8b\u5982x\u65b9\u5411\u4e24\u8fb9\u90fd\u4f7f\u7528 Stabilized\uff1a<\/p>\n

    \n

    \n\"image.png\"
    \n<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"template":"","class_list":["post-52871","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["25180"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":["Bh?\""],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["3242"],"_edit_lock":["1660037836:76739"],"_edit_last":["76739"],"_wp_old_slug":["ansys-insight-fdtd%e7%ae%97%e6%b3%95%e4%b8%adpml%e7%9a%84%e7%b1%bb%e5%9e%8b%e5%92%8c%e9%80%89%e6%8b%a9"],"_bbp_subscription":["2592"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["52871"],"_bbp_forum_id":["27835"],"_bbp_engagement":["2592"],"_bbp_voice_count":["1"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["242242"],"_bbp_last_active_id":["242242"],"_bbp_last_active_time":["2022-11-28 19:27:49"]},"test":"gsun"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/52871","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/52871\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=52871"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}