亚洲一区欧美在线,日韩欧美视频免费观看,色戒的三场床戏分别是在几段,欧美日韩国产在线人成

基于CFD模擬模型的溫室溫度場(chǎng)均勻性控制
作者:
作者單位:

作者簡(jiǎn)介:

通訊作者:

中圖分類號(hào):

基金項(xiàng)目:

國(guó)家自然科學(xué)基金資助項(xiàng)目（60971106）、江蘇省農(nóng)機(jī)局、南京農(nóng)業(yè)大學(xué)工學(xué)院科研啟動(dòng)基金資助項(xiàng)目（rcqd10-01）和南京農(nóng)業(yè)大學(xué)青年科技創(chuàng)新基金資助項(xiàng)目（KJ2011024）


Temperature Homogeneity Control of Greenhouse Based on CFD Simulation Model
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問(wèn)統(tǒng)計(jì)
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評(píng)論
    摘要:

    為達(dá)到精確控制溫室環(huán)境因子的目的，提出一種基于計(jì)算流體力學(xué)(CFD)模擬模型的試驗(yàn)設(shè)計(jì)(DOE)優(yōu)化控制系統(tǒng)，通過(guò)正交試驗(yàn)設(shè)計(jì)，在盡可能少的CFD求解次數(shù)下，獲得環(huán)境因子控制的最優(yōu)組合；以溫度場(chǎng)控制為例，通過(guò)引入均勻性評(píng)價(jià)指標(biāo)，以CFD為計(jì)算工具不斷改變控制輸入的組合，使該指標(biāo)達(dá)到極小，從而在原有溫度定值控制基礎(chǔ)上，使溫室作物溫度生長(zhǎng)的局部差異減小，提高溫室綜合生產(chǎn)效率；最后以試驗(yàn)實(shí)例給出了這種方法求解的基本過(guò)程，結(jié)果表明優(yōu)化后的效果明顯，控制組合方式易于獲得。

    Abstract:

    In order to achieve precise control effect of greenhouse environmental factors, an innovative optimization control system arithmetic based on CFD was presented. By using orthogonal experiment in DOE, controller design in the optimal system was obtained, meanwhile, iteration times of CFD could be reduced as soon as possible. Taking control temperature field as an example, through setting up temperature distribution index and making its minimum by the strategy of using iterative algorithm with CFD calculated, the difference of temperature distribution could be decreased. The greenhouse comprehensive production efficiency was improved. Lastly, an experiment was illustrated by proposed method. The results showed that the algorithm was proved to achieve the control law easily. 

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

李永博,周偉,李鵬飛,汪小旵,丁為民.基于CFD模擬模型的溫室溫度場(chǎng)均勻性控制[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2012,43(4):156-161. Li Yongbo, Zhou Wei, Li Pengfei,Wang Xiaochan, Ding Weimin. Temperature Homogeneity Control of Greenhouse Based on CFD Simulation Model[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(4):156-161.

復(fù)制
分享
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2012-04-18
  • 出版日期: