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dangdang3033
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ͨ¹ý¶Ô²»Í¬µÄ½ØÃæ½øÐÐËٶȳ¡·ÖÎö£¬·¢ÏÖÁË×éºÏÒíÎÐÁ÷·¢ÉúÆ÷µÄСÒíËùÓÕµ¼ÔÚÈÆÁ÷ÔªºóÐγɵġ°ÎÀÐÇÎС±½á¹¹£¬²¢·¢ÏÖ·ÅÖ÷½Ê½²»Í¬£¬»áʹ¡°ÎÀÐÇÎС±µÄλÖúʹóС²úÉú±ä»¯£»Í¨¹ý¶Ô±ÈÏà¶ÔÓÚ¹âͨµÀ£¬²»Í¬½ØÃæµÄ¼ÓÈȰåζȵļõÉÙÁ¿¼°Æä¶ÔÓ¦µÄËٶȳ¡Êý¾Ý£¬·¢ÏÖ¡°ÎÀÐÇÎС±µÄ×÷ÓÃÊǾö¶¨ÐÂÐÍ×éºÏÒíÎÐÁ÷·¢ÉúÆ÷»»ÈÈÐÔÄܵĸù±¾ÔÒò¡£ By analysing the velocity fields of different cross sections, we found that satellite vortex structure was induced behind flow element by airfoil of vortex generater with integrated wing. And with the different placements, the positions and sizes of satellite vortex were different. By comparing optical channel to the temperature decrease of heating plate with different cross sections and the related datas of velocity field, we also found that the satellite vortex effect was the primary reason for the heat transfer characteristics of vortex generater with a new integrated rectangular wing. ×îºóÒ»¶Î£¬Ò»»á¶ù·îÉÏ |
7Â¥2010-11-16 13:48:15
dangdang3033
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Under the guidance of sustainable development and Low Carbon Economy concept, people are harnessing new engery. At the same time, they may focus their practice in energy saving and enhancing the utilization efficiency of energy.That is because enhancing the utilization efficiency of energy equals energy saving. Passive augmentation heat transfer which has the advantages of simple construction and needing no additional power will become the mainstream of augmentation heat transfer methods. ÏÈ·ÒëµÚÒ»¶Î£¬²»ÊÇÒ»¸öרҵ£¬·ÒëµÄÓŵãÀ§ÄÑ |
3Â¥2010-11-15 14:31:59
4Â¥2010-11-15 18:14:47
dangdang3033
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chifan446(½ð±Ò+40):¼á³Ö²»Ð¸µØ×öÊÂÊÇÖÖ¾«Éñ£¬ÖµµÃ¹ÄÀø 2010-11-17 09:26:53
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½ÓÉÏÃæ£¬¼ÌÐøµÚ¶þ¶Î¹þ ×ÝÏòÎÐÁ÷·¢ÉúÆ÷¼¼Êõ¾ÍÊÇÒ»ÖÖÓÐЧµÄ±»¶¯Ê½Ç¿»¯»»Èȼ¼Êõ¡£±¾ÎÄͨ¹ý¶ÔÒ»ÖÖÐÂÐÍ×éºÏ¾ØÐÎÒíÎÐÁ÷·¢ÉúÆ÷µÄ»»ÈÈÌØÐÔ¼°Á÷¶¯³¡ËÙ¶È·Ö²¼½øÐÐʵÑéÑо¿£¬·¢ÏÖÐÂÐÍ×éºÏ¾ØÐÎÒí½ÏÖ®¾ØÐÎÒíÎÐÁ÷·¢ÉúÆ÷ÊÇÒ»ÖÖ¸üÀíÏëµÄ±ÚÃæÈÆÁ÷Ôª£¬·ÖÎö·¢ÏÖ×éºÏÒíÎÐÁ÷·¢ÉúÆ÷µÄ×îÓзÅÖ÷½Ê½Îª·´Ïò±³·ç·ÅÖ㬶øÇÒСÒí½Ç¶ÈΪ30¡ãµÄÐÂÐÍ×éºÏ¾ØÐÎÎÐÁ÷·¢ÉúÆ÷»»ÈÈÌØÐÔÒªºÃÓÚСÒí½Ç¶ÈΪ45¡ãµÄÐÂÐÍÎÐÁ÷·¢ÉúÆ÷Longitudinal vortex generater technology is a kind of effective passive augmentation heat transfer technology. This paper studied heat transfer characteristics and the distribution of velocity of a new integrated rectangular wing, found that new integrated rectangular wing is properer flow element than vortex generater with rectangular wing and the most effective placement for vortex generater with integrated rectangular wing is to place it in the lee of the wind. And vortex generater with integrated rectangular wing with 30¡ã airfoil angle has better heat transfer characteristics than that with 45¡ã airfoil angle. ²»ÊÇÒ»¸öרҵµÄ£¬·ÒëÌ«ºÄ¾«Á¦ÁË£¬Ã÷Ìì¼ÌÐø°É |
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