{"id":751759,"date":"2024-09-18T15:23:59","date_gmt":"2024-09-18T14:23:59","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=751759"},"modified":"2024-09-18T15:23:59","modified_gmt":"2024-09-18T14:23:59","slug":"%e6%b5%81%e4%bd%93%e6%b5%81%e5%8a%a8%e4%b8%ad%e7%9a%84%e9%9b%b7%e8%af%ba%e6%95%b0%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e6%b5%81%e4%bd%93%e6%b5%81%e5%8a%a8%e4%b8%ad%e7%9a%84%e9%9b%b7%e8%af%ba%e6%95%b0%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f\/","title":{"rendered":"\u6d41\u4f53\u6d41\u52a8\u4e2d\u7684\u96f7\u8bfa\u6570\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"

\u96f7\u8bfa\u6570\u662f\u8861\u91cf\u6d41\u4f53\u6d41\u52a8\u72b6\u6001\u7684\u65e0\u91cf\u7eb2\u6570\u503c\uff0c\u533a\u5206\u5c42\u6d41\u4e0e\u6e4d\u6d41\u3002\u672c\u6587\u8be6\u7ec6\u89e3\u91ca\u4e86\u96f7\u8bfa\u6570\u7684\u5b9a\u4e49\u3001\u8ba1\u7b97\u516c\u5f0f\u53ca\u5176\u5728\u5de5\u7a0b\u4e2d\u7684\u5e94\u7528\u3002<\/p>\n

\"\u6d41\u4f53\u6d41\u52a8\u4e2d\u7684\u96f7\u8bfa\u6570\u662f\u4ec0\u4e48\uff1f\"<\/p>\n

\u6d41\u4f53\u6d41\u52a8\u4e2d\u7684\u96f7\u8bfa\u6570\u662f\u4ec0\u4e48\uff1f<\/h2>\n

\u6d41\u4f53\u6d41\u52a8\u4e2d\u7684\u96f7\u8bfa\u6570\uff08Reynolds number, \u7b80\u5199\u4e3aRe\uff09\u662f\u4e00\u4e2a\u65e0\u91cf\u7eb2\u6570\uff0c\u5b83\u7528\u4e8e\u63cf\u8ff0\u6d41\u4f53\u6d41\u52a8\u7684\u7c7b\u578b\u548c\u6027\u8d28\u3002\u5728\u5de5\u7a0b\u548c\u7269\u7406\u5b66\u4e2d\uff0c\u96f7\u8bfa\u6570\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u53c2\u6570\uff0c\u901a\u5e38\u7528\u4e8e\u5224\u65ad\u6d41\u52a8\u662f\u5c42\u6d41\u8fd8\u662f\u6e4d\u6d41\u3002<\/p>\n

\u96f7\u8bfa\u6570\u7684\u5b9a\u4e49<\/h2>\n

\u96f7\u8bfa\u6570\u7684\u5b9a\u4e49\u516c\u5f0f\u4e3a\uff1a<\/p>\n

Re<\/sup> = \\(\\frac{{\\rho * V * L}}{{\\mu}}\\)<\/p>\n

\u5176\u4e2d\uff1a<\/p>\n

    \n
  1. \ud835\udf0c (rho) \u662f\u6d41\u4f53\u7684\u5bc6\u5ea6\uff0c\u5355\u4f4d\u4e3a kg\/m3<\/sup><\/li>\n
  2. \ud835\udc49 \u662f\u6d41\u4f53\u7684\u901f\u5ea6\uff0c\u5355\u4f4d\u4e3a m\/s<\/li>\n
  3. \ud835\udc3f \u662f\u7279\u5f81\u957f\u5ea6\uff0c\u5355\u4f4d\u4e3a m<\/li>\n
  4. \ud835\udf07 \u662f\u6d41\u4f53\u7684\u9ecf\u5ea6\uff0c\u5355\u4f4d\u4e3a Pa\u00b7s \u6216 N\u00b7s\/m2<\/sup><\/li>\n<\/ol>\n

    \u96f7\u8bfa\u6570\u7684\u610f\u4e49<\/h2>\n

    \u96f7\u8bfa\u6570\u7528\u6765\u533a\u5206\u6d41\u4f53\u7684\u6d41\u52a8\u7c7b\u578b\uff0c\u5f53\u96f7\u8bfa\u6570\u8f83\u4f4e\u65f6\uff0c\u6d41\u52a8\u901a\u5e38\u4e3a\u5c42\u6d41\uff1b\u5f53\u96f7\u8bfa\u6570\u8f83\u9ad8\u65f6\uff0c\u6d41\u52a8\u901a\u5e38\u4e3a\u6e4d\u6d41\u3002\u5177\u4f53\u6765\u8bf4\uff1a<\/p>\n

      \n
    • Re < 2000\uff1a\u5c42\u6d41\uff08 Laminar Flow\uff09<\/li>\n
    • 2000 < Re < 4000\uff1a\u8fc7\u6e21\u6d41\uff08Transitional Flow\uff09<\/li>\n
    • Re > 4000\uff1a\u6e4d\u6d41\uff08Turbulent Flow\uff09<\/li>\n<\/ul>\n

      \u5c42\u6d41\u662f\u6d41\u4f53\u5728\u7ba1\u9053\u4e2d\u4ee5\u5e73\u884c\u5c42\u5f62\u5f0f\u6d41\u52a8\uff0c\u5404\u5c42\u4e4b\u95f4\u51e0\u4e4e\u6ca1\u6709\u6df7\u5408\u3002\u6e4d\u6d41\u5219\u8868\u73b0\u4e3a\u6d41\u4f53\u6d41\u52a8\u4e2d\u51fa\u73b0\u8bb8\u591a\u4e71\u6d41\u548c\u6f29\u6da1\uff0c\u6d41\u4f53\u4e4b\u95f4\u53d1\u751f\u5f3a\u70c8\u6df7\u5408\u3002<\/p>\n

      \u5e94\u7528\u5b9e\u4f8b<\/h2>\n

      \u5728\u70ed\u5de5\u7a0b\u4e2d\uff0c\u96f7\u8bfa\u6570\u6709\u5f88\u591a\u5b9e\u9645\u5e94\u7528\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u5b9e\u4f8b\uff1a<\/p>\n

        \n
      • \u7ba1\u9053\u4e2d\u7684\u6c34\u6d41<\/strong>\uff1a\u901a\u8fc7\u8ba1\u7b97\u6c34\u5728\u7ba1\u9053\u4e2d\u7684\u96f7\u8bfa\u6570\uff0c\u5de5\u7a0b\u5e08\u53ef\u4ee5\u786e\u5b9a\u662f\u4f7f\u7528\u5c42\u6d41\u6a21\u578b\u8fd8\u662f\u6e4d\u6d41\u6a21\u578b\u6765\u8bbe\u8ba1\u7ba1\u9053\u3002<\/li>\n
      • \u7a7a\u6c14\u52a8\u529b\u5b66<\/strong>\uff1a\u5728\u822a\u7a7a\u9886\u57df\uff0c\u96f7\u8bfa\u6570\u5e2e\u52a9\u786e\u5b9a\u6c14\u6d41\u662f\u5982\u4f55\u7ed5\u8fc7\u673a\u7ffc\u548c\u673a\u8eab\u7684\uff0c\u8fd9\u5bf9\u7a7a\u6c14\u52a8\u529b\u5b66\u8bbe\u8ba1\u81f3\u5173\u91cd\u8981\u3002<\/li>\n
      • \u5316\u5de5\u53cd\u5e94\u5668<\/strong>\uff1a\u5728\u5316\u5de5\u751f\u4ea7\u4e2d\uff0c\u6df7\u5408\u4f5c\u7528\u548c\u53cd\u5e94\u901f\u5ea6\u4f1a\u53d7\u5230\u6d41\u4f53\u6d41\u52a8\u5f62\u5f0f\u7684\u5f71\u54cd\uff0c\u96f7\u8bfa\u6570\u53ef\u4ee5\u5e2e\u52a9\u4f18\u5316\u53cd\u5e94\u5668\u8bbe\u8ba1\u3002<\/li>\n<\/ul>\n

        \u7ed3\u8bba<\/h2>\n

        \u603b\u7684\u6765\u8bf4\uff0c\u96f7\u8bfa\u6570\u662f\u4e00\u4e2a\u5173\u952e\u7684\u65e0\u91cf\u7eb2\u53c2\u6570\uff0c\u7528\u4e8e\u63cf\u8ff0\u6d41\u4f53\u6d41\u52a8\u7684\u6027\u8d28\u3002\u7406\u89e3\u548c\u5e94\u7528\u96f7\u8bfa\u6570\u5bf9\u4e8e\u70ed\u5de5\u7a0b\u548c\u5176\u4ed6\u6d89\u53ca\u6d41\u4f53\u6d41\u52a8\u7684\u9886\u57df\u6781\u4e3a\u91cd\u8981\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

        \u96f7\u8bfa\u6570\u662f\u8861\u91cf\u6d41\u4f53\u6d41\u52a8\u72b6\u6001\u7684\u65e0\u91cf\u7eb2\u6570\u503c\uff0c\u533a\u5206\u5c42\u6d41\u4e0e\u6e4d\u6d41\u3002\u672c\u6587\u8be6\u7ec6\u89e3\u91ca\u4e86\u96f7\u8bfa\u6570\u7684\u5b9a\u4e49\u3001\u8ba1\u7b97\u516c\u5f0f\u53ca\u5176\u5728\u5de5\u7a0b\u4e2d\u7684\u5e94\u7528\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[134],"tags":[],"yoast_head":"\n\u6d41\u4f53\u6d41\u52a8\u4e2d\u7684\u96f7\u8bfa\u6570\u662f\u4ec0\u4e48\uff1f<\/title>\n<meta name=\"description\" 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