{"id":746736,"date":"2024-10-01T22:33:56","date_gmt":"2024-10-01T21:33:56","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=746736"},"modified":"2024-10-01T22:33:56","modified_gmt":"2024-10-01T21:33:56","slug":"%e6%96%87%e4%b8%98%e9%87%8c%e8%ae%a1-%e5%8e%9f%e7%90%86%e3%80%81%e7%b1%bb%e5%9e%8b%e3%80%81%e6%b5%81%e9%87%8f","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e6%96%87%e4%b8%98%e9%87%8c%e8%ae%a1-%e5%8e%9f%e7%90%86%e3%80%81%e7%b1%bb%e5%9e%8b%e3%80%81%e6%b5%81%e9%87%8f\/","title":{"rendered":"\u6587\u4e18\u91cc\u8ba1 | \u539f\u7406\u3001\u7c7b\u578b\u3001\u6d41\u91cf"},"content":{"rendered":"<p class=\"sidekick\">\u6587\u4e18\u91cc\u8ba1 | \u539f\u7406\u3001\u7c7b\u578b\u3001\u6d41\u91cf\uff1a\u4e86\u89e3\u6587\u4e18\u91cc\u8ba1\u7684\u57fa\u672c\u5de5\u4f5c\u539f\u7406\u3001\u4e0d\u540c\u884c\u7c7b\u578b\u53ca\u5176\u5728\u6d41\u91cf\u6d4b\u91cf\u4e2d\u7684\u5e94\u7528\uff0c\u5e2e\u52a9\u60a8\u638c\u63e1\u8be5\u5173\u952e\u4eea\u5668\u7684\u64cd\u4f5c\u8981\u70b9\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u6587\u4e18\u91cc\u8ba1_\u539f\u7406-\u7c7b\u578b-\u6d41\u91cf.png\" alt=\"\u6587\u4e18\u91cc\u8ba1 | \u539f\u7406\u3001\u7c7b\u578b\u3001\u6d41\u91cf\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u6587\u4e18\u91cc\u8ba1 | \u539f\u7406\u3001\u7c7b\u578b\u3001\u6d41\u91cf<\/h2>\n<p>\u6587\u4e18\u91cc\u8ba1\uff08Venturi Meter\uff09\u662f\u4e00\u79cd\u7528\u4e8e\u6d4b\u91cf\u6d41\u4f53\u6d41\u91cf\u7684\u8bbe\u5907\uff0c\u901a\u8fc7\u6d41\u4f53\u52a8\u529b\u5b66\u539f\u7406\u5de5\u4f5c\u3002\u5b83\u7684\u540d\u5b57\u6e90\u4e8e\u610f\u5927\u5229\u7269\u7406\u5b66\u5bb6Giovanni Battista Venturi\uff0c\u4ed6\u572818\u4e16\u7eaa\u672b\u671f\u7814\u7a76\u4e86\u6d41\u4f53\u6d41\u52a8\u7684\u7279\u6027\u3002<\/p>\n<h2>\u539f\u7406<\/h2>\n<p>\u6587\u4e18\u91cc\u8ba1\u7684\u5de5\u4f5c\u539f\u7406\u57fa\u4e8e\u4f2f\u52aa\u5229\u65b9\u7a0b\u3002\u4f2f\u52aa\u5229\u65b9\u7a0b\u8868\u660e\uff0c\u5bf9\u4e8e\u4e0d\u538b\u7f29\u548c\u65e0\u6469\u64e6\u7684\u6d41\u4f53\uff0c\u6d41\u901f\u4e0e\u538b\u5f3a\u4e4b\u95f4\u5b58\u5728\u53cd\u6bd4\u5173\u7cfb\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u5f53\u6d41\u4f53\u901a\u8fc7\u4e00\u4e2a\u6536\u7f29\u7684\u7ba1\u9053\u65f6\uff0c\u6d41\u901f\u589e\u52a0\uff0c\u800c\u538b\u5f3a\u964d\u4f4e\u3002\u6587\u4e18\u91cc\u8ba1\u901a\u8fc7\u6d4b\u91cf\u7ba1\u9053\u5185\u4e0d\u540c\u622a\u9762\u5904\u7684\u538b\u5f3a\u5dee\u6765\u8ba1\u7b97\u6d41\u91cf\u3002<\/p>\n<p>\u4f2f\u52aa\u5229\u65b9\u7a0b\u5982\u4e0b\uff1a<\/p>\n<p><code>P_1 + \\frac{1}{2} \\rho v_1^2 = P_2 + \\frac{1}{2} \\rho v_2^2<\/code><\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li><code>P_1<\/code> \u548c <code>P_2<\/code> \u5206\u522b\u662f\u6d41\u4f53\u5728\u7a84\u7aef\u548c\u5bbd\u7aef\u7684\u538b\u5f3a<\/li>\n<li><code>\\rho<\/code> \u662f\u6d41\u4f53\u7684\u5bc6\u5ea6<\/li>\n<li><code>v_1<\/code> \u548c <code>v_2<\/code> \u5206\u522b\u662f\u6d41\u4f53\u5728\u7a84\u7aef\u548c\u5bbd\u7aef\u7684\u6d41\u901f<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u7ba1\u9053\u622a\u9762\u79ef\u548c\u6d41\u901f\u7684\u5173\u7cfb\uff0c\u53ef\u5f97\u6d41\u91cf\uff1a<\/p>\n<p><code>Q = A_2 v_2<\/code><\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li><code>Q<\/code> \u662f\u6d41\u91cf<\/li>\n<li><code>A_2<\/code> \u662f\u7ba1\u9053\u5728\u7a84\u7aef\u7684\u622a\u9762\u79ef<\/li>\n<\/ul>\n<h2>\u7c7b\u578b<\/h2>\n<p>\u6839\u636e\u7ed3\u6784\u548c\u7528\u9014\u7684\u4e0d\u540c\uff0c\u6587\u4e18\u91cc\u8ba1\u4e3b\u8981\u5206\u4e3a\u4ee5\u4e0b\u51e0\u79cd\u7c7b\u578b\uff1a<\/p>\n<ul>\n<li>\u7ecf\u5178\u6587\u4e18\u91cc\u8ba1\uff1a\u6807\u51c6\u5f62\u72b6\uff0c\u9002\u7528\u4e8e\u4e00\u822c\u6d41\u4f53\u6d4b\u91cf\u3002<\/li>\n<li>\u77ed\u7ba1\u6587\u4e18\u91cc\u8ba1\uff1a\u7528\u4e8e\u7a7a\u95f4\u53d7\u9650\u4e14\u9700\u8981\u7cbe\u786e\u6d4b\u91cf\u7684\u573a\u5408\u3002<\/li>\n<li>\u73af\u5f62\u6587\u4e18\u91cc\u8ba1\uff1a\u9002\u7528\u4e8e\u5927\u6d41\u91cf\u6216\u8005\u6709\u9897\u7c92\u6d41\u4f53\u7684\u6d4b\u91cf\u3002<\/li>\n<\/ul>\n<h2>\u6d41\u91cf\u6d4b\u91cf<\/h2>\n<p>\u4f7f\u7528\u6587\u4e18\u91cc\u8ba1\u6d4b\u91cf\u6d41\u91cf\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u6d41\u4f53\u8fdb\u5165\u5bbd\u7aef\uff0c\u538b\u5f3a\u4e3a <code>P_1<\/code>\u3002<\/li>\n<li>\u6d41\u4f53\u6d41\u8fc7\u6536\u7f29\u7ba1\u9053\uff0c\u6d41\u901f\u589e\u5927\uff0c\u538b\u5f3a\u964d\u4f4e\u5230 <code>P_2<\/code>\u3002<\/li>\n<li>\u5728\u7a84\u7aef\u5904\u6d4b\u91cf\u538b\u5f3a\u548c\u901f\u5ea6\u3002<\/li>\n<li>\u6839\u636e\u538b\u5f3a\u5dee\u548c\u7ba1\u9053\u622a\u9762\u79ef\uff0c\u901a\u8fc7\u4f2f\u52aa\u5229\u65b9\u7a0b\u8ba1\u7b97\u51fa\u6d41\u901f <code>v_2<\/code>\u3002<\/li>\n<li>\u5229\u7528 <code>Q = A_2 v_2<\/code> \u516c\u5f0f\u8ba1\u7b97\u51fa\u6d41\u91cf\u3002<\/li>\n<\/ol>\n<p>\u6587\u4e18\u91cc\u8ba1\u5177\u6709\u6548\u7387\u9ad8\u3001\u538b\u529b\u635f\u5931\u5c0f\u548c\u9002\u5e94\u6027\u5f3a\u7b49\u4f18\u70b9\uff0c\u56e0\u6b64\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5de5\u4e1a\u548c\u79d1\u5b66\u7814\u7a76\u4e2d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u4e18\u91cc\u8ba1 | \u539f\u7406\u3001\u7c7b\u578b\u3001\u6d41\u91cf\uff1a\u4e86\u89e3\u6587\u4e18\u91cc\u8ba1\u7684\u57fa\u672c\u5de5\u4f5c\u539f\u7406\u3001\u4e0d\u540c\u884c\u7c7b\u578b\u53ca\u5176\u5728\u6d41\u91cf\u6d4b\u91cf\u4e2d\u7684\u5e94\u7528\uff0c\u5e2e\u52a9\u60a8\u638c\u63e1\u8be5\u5173\u952e\u4eea\u5668\u7684\u64cd\u4f5c\u8981\u70b9\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":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u6587\u4e18\u91cc\u8ba1 | \u539f\u7406\u3001\u7c7b\u578b\u3001\u6d41\u91cf<\/title>\n<meta name=\"description\" content=\"\u6587\u4e18\u91cc\u8ba1 | 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