|
|
|
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.15, no.4, 2006³â, pp.289-295
|
°ø±âÀ¯µ¿Çؼ®À» ÅëÇÑ ¿Â½Ç³» ½Ä¹°±º ¹Ì±â»ó ºÐ¼®±â¼ú °³¹ß - (1) dzµ¿½ÇÇèÀ» ÅëÇÑ Å丶Åä ½Ä¹°±ºÀÇ °ø±âÀúÇ× ¿¬±¸ -
( Development of an Aerodynamic Simulation for Studying Microclimate of Plant Canopy in Greenhouse - (1) Study on Aerodynamic Resistance of Tomato Canopy through Wind Tunnel Experiment - ) |
| ÀÌÀκ¹;À±³²±Ô;;;À̼ºÇö;±è°æ¿ø;À̽±â;±Ç¼øÈ«; ¼¿ï´ëÇб³ ³ó¾÷»ý¸í°úÇдëÇÐ Áö¿ª½Ã½ºÅÛ°øÇÐ;³óÃÌÁøÈïû ³ó¾÷°øÇבּ¸¼Ò ½Ã¼³¹æÁ¦°øÇבּ¸½Ç;ÇÁ¶û½º ±¹¸³³ó¾÷¿¬±¸¼Ò ¿ø¿¹È¯°æ¿¬±¸½Ç;ÇÁ¶û½º Franche-Comte ´ëÇб³, CREST;³óÃÌÁøÈïû ³ó¾÷°øÇבּ¸¼Ò ½Ã¼³¹æÁ¦°øÇבּ¸½Ç;³óÃÌÁøÈïû ³ó¾÷°øÇבּ¸¼Ò ½Ã¼³¹æÁ¦°øÇבּ¸½Ç;°øÁÖ´ëÇб³ »ý¹°»ê¾÷°øÇкÎ;ºÎ»ê´ëÇб³ ¹ÙÀÌ¿À½Ã½ºÅÛ°øÇкÎ;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| ¿Â½ÇÀÇ È¯±â¿¬±¸¸¦ À§ÇÑ CFD ½Ã¹Ä·¹ÀÌ¼Ç ¸ðµ¨¿¡ Å丶Åä ÀÛ¹°À» ¼³°èÇÔ¿¡ ÀÖ¾î¼ ¿ì¼±ÀûÀ¸·Î ÀÛ¹°±ºÀÇ ±âÇÏÇÐÀû Çü»ó ¼³°è ¹× ÀÌÀÇ °ø±â Ç׷°è¼ö¸¦ ã°íÀÚ ÇÏ¿´´Ù. ÀÛ¹°±º Çü»óÀ» °£´ÜÇÑ ÇüÅÂÀÇ °ø±âÅõ°ú¼º ¸Åü·Î ¼³°èÇϰí ÀÌÀÇ °ø±âÀúÇ×ÀÇ ¹°¸®Àû Ư¼ºÀ» dzµ¿½ÇÇèÀ» ÅëÇÏ¿© ±¸ÇÏ¿´´Ù. Å丶Åä ÀÛ¹°±º°ú ÀÛ¹°±º »çÀÌ¿¡¼ ÃøÁ¤µÈ °ª°ú ÀÛ¹°±º Á߾Ӻο¡¼ ÃøÁ¤µÇ¾îÁø °ªµéÀ» ºÐ¸®ÇÏ¿© °è»êÇÏ¿© µÈ °á°ú °ø±âÀúÇ×°ªÀÎ Ç׷°è¼ö $C_d °ªÀº °¢°¢ 0.2551¿Í 0.2621·Î ³ªÅ¸³µ´Ù. ÃÖÁ¾ÀûÀ¸·Î À̵éÀÇ Æò±Õ°ªÀÎ 0.26À» Fluent CFD ÇÁ·Î±×·¥ÀÇ ÀÛ¹°±º °ø±âÅõ°ú¼º ¸ÅüÀÇ x, y, zÃàÀÇ ³»ºÎÀúÇ×°ªÀ¸·Î ÀԷµǾú´Ù. ÀÌ ½ÇÇè°á°ú¸¦ ÀÌ¿ëÇÏ¿© Àü»êÀ¯Ã¼¿ªÇÐ (CFD)À» ÀÌ¿ëÇÑ ½Ã¼³³» ÀÛ¹°±ºÀÌ Á¸ÀçÇÏ´Â °æ¿ìÀÇ ¿Â½Ç ȯ±â¿¬±¸¸¦ È¿°úÀûÀ¸·Î ¼öÇàÇÒ ¼ö ÀÖ°Ô µÇ¾ú´Ù. ¶ÇÇÑ Ç³µ¿À» ÀÌ¿ëÇÑ ÀÛ¹°ÀÇ °ø±âÀúÇ× ¿¬±¸¸¦ À§ÇÑ ½ÇÇè¹æ¹ýÀ» °³¹ßÇÏ¿© ¾ÕÀ¸·Îµµ ´Ù¾çÇÑ ÀÛ¹°µéÀ» ´ë»óÀ¸·Î °ø±âÀ¯µ¿ÀÇ ¹°¸®Àû Ư¼º¿¬±¸¸¦ ¼öÇàÇÒ ¼ö ÀÖ°Ô µÇ¾ú´Ù. |
|
| A computational fluid dynamics (CFD) numerical model has been developed to effectively study the ventilation efficiency of multi-span greenhouses with internal crops. As the first step of the study, the internal plants of the CFD model had to be designed as a porous media because of the complexity of its physical shapes. In this paper, the results of the wind tunnel tests were introduced to find the aerodynamic resistance of the plant canopy. The Seogun tomato was used for this study which made significant effects on thermal and mass exchanges with the adjacent air as well as internal airflow resistance. With the main factors of wind speed, static pressure, and density of plant canopy, the aerodynamic resistance factor was statically found. It was finally found to be 0.26 which will be used later as an input data of the CFD model. Moreover, the experimental procedure of how to find the aerodynamic resistance of various plants using, wind tunnel was established through this study. |
| |
| Ű¿öµå |
| aerodynamic resistance;computational fluid dynamics (CFD);crop heterogeneity;greenhouse;tomato;wind tunnel; |
| |
|
|
 |
|
»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.15, no.4, 2006³â, pp.289-295
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200608506270402)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|