computational fluid dynamics (cfd) 中文意思是什麼

computational fluid dynamics (cfd) 解釋
計算流體動力學
  • computational : adj. 計算的。
  • fluid : n 流體，液。 body fluid 體液。 cooling fluid 冷卻液。adj 1 流動的；流體的；液體的。2 容易[可]變動...
  • dynamics : n. pl. 1. 〈用作 sing. 〉 力學；動力學。2. 動力，原動力。3. 動態。4. 【音樂】力度強弱法。
  • cfd : 差價合約
  1. Since these theoretical analyses are based on inviscid potential flow theory, theoretical calculation and computational simulation may complement each other. the hydrodynamics and undulating propulsion of specimens were studied using three dimensional computational fluid dynamics ( cfd ) modeling. the cfd analysis using kinematic model of undulatory dorsal / median fin draws a series of conclusions, which include that the body drag increases significantly with the lateral body oscillation ; the body drag is minimum while the start point of

    計算結果表明游動過程中的形體阻力隨側向周期性擺動而增大;當背鰭前端位於身體側向最寬處時，形體阻力具有局部最小值，結論與實驗觀測結果相吻合;在實驗觀測的典型運動參數下，波動面的運動方程中的非對稱因素的出現使推進力增大約1 . 10倍。
  2. A study about the effect of combustion chamber passage configuration on air plow field is performed in a compression ignition natural gas engine with a separated combustion chamber using multi - dimensional computational fluid dynamics ( cfd ) code

    摘要以分隔室式天然氣發動機為研究對象，利用cfd多維數值模擬計算軟體，研究了燃燒室通道結構參數對壓燃式天然氣發動機缸內氣流運動的影響。
  3. According to the engineering criterion of the cooling system, the function and the characteristic of the cooling system are checked at the case of rating and torque, thus two schemes are compared to select the better one, and also the boundary condition for further computational fluid dynamics ( cfd ) analysis is provided

    按照冷卻系統工程規范，分標定點與轉矩點兩個工況來檢查冷卻系統的功能和特性，以比較兩種結構方案的優劣，也為下一步進行計算流體動力學分析（ cfd ）提供邊界條件。
  4. Computational fluid dynamics ( cfd ) techniques are used to study and understand fluid behavior in tunnels. by simulating complex specific operational cases, we can educe velocity or flux distribution in tunnel under different ventilation and resistance situation and determine the favorable operational procedures of the erlang mountain tunnel ventilation in a fire case. comparison has been made between a simulation and experiment for some cases in order to prove the cfd model is powerful, so that enables the study of cases for which experimental data is not available

    採用本文將隧道內的氣流看成是理想流體的一維恆定流動，通過對二郎山特長公路隧道半橫向通風系統建立隧道內的空氣動力學模型，利用計算機進行數值分析與計算，得出發生火災時，不同通風阻力條件下隧道中的風速分佈及流量分佈，並通過實驗室隧道模型實驗進行驗證與修正，依據研究結果給出了二郎山半橫向通風隧道的火災控制方案，從而解決了二郎山公路隧道通風對火災的控制問題，同時為半橫向通風公路隧道的火災通風提供科學的方法。
  5. A brief of description of the fluid machinery development, turbulence and computational fluid dynamics ( cfd ) in the engineering is introduced

    簡要介紹了流體機械設計方法、湍流和計算流體力學的發展狀況及在工程中的應用； 2
  6. Using computational fluid dynamics ( cfd ), it is possible to examine the flow field inside the impeller and to reduce the number of expensive measurements

    應用計算流體力學的方法，能夠詳細了解葉輪機械內部流場，並部分替代昂貴的實驗研究。
  7. Computational fluid dynamics ( cfd ) solver aimed to solve multi - physics problems on unstructured grids ( inviscid euler, navier - stokes flows, heat transfer ). f90 based. mpi, cgns, metis, lapack libraries used

    計算流體動力學的解決方案，特別是針對在無結構性的組合上的多種物理學問題。
  8. ( 1 ) the cfd model for the pulse combustion spray drying process. the computational fluid dynamics ( cfd ) based on the two - phase flow theory was employed in this paper, which used the standard k - e model and the particle trajectory model to simulate the gas - particle flow in the drying chamber. the momentum, heat and mass transfer regarding both gaseous and particulate phases during the spray drying inside the drying chamber was also revealed

    為解決這一難題，本文利用氣體一顆粒兩相流理論和計算流體力學（ cfd ）技術，建立了更符合實際噴霧乾燥過程的數學模型即噴霧乾燥的cfd模型，並進行了脈動燃燒噴霧乾燥過程模擬，其主要內容如下： （ 1 ）建立了脈動燃燒噴霧乾燥的cfd模型該數學模型建立在氣體一顆粒兩相流基礎之上，用標準k -模型預測乾燥室內的氣體湍流運動過程，顆粒軌道模型追蹤乾燥室內顆粒群的運動軌跡，熱質傳遞模型描述空氣和液滴的熱質傳遞過程。
  9. Numerical prediction of ship hydrodynamic performance at design stage using computational fluid dynamics ( cfd ) technique is a most important and challenging subject in the field of ship hydrodynamics. with the rapid development of computational methods and computer technology, cfd is becoming a practical tool in ship design

    採用計算流體動力學（ cfd ）技術實現在船舶設計階段對船舶水動力性能的精確預報，是船舶水動力學學科中一個具有重大理論和實用意義的、富有挑戰性的課題。
  10. One of the main aspects of research on distillation column with trays is the fluid field and mass transfer on the trays by the method of computational fluid dynamics ( cfd )

    =在蒸餾設備中，板式塔研究的一個重要方面就是應用計算流體力學對塔板上流體流動狀況及傳質過程的研究。
  11. The unstable gas stream is characterized by oscillations with transient velocities of about + 100 m / s and frequencies from 50 - 200h /. the enhanced mixing and transport processes lead to a highly efficient moisture evaporation rate during pulsating spray drying. the computational fluid dynamics ( cfd ) method was used for the analysis and investigation of flow, temperature and humidity fields in a pulsating flow spray - drying chamber

    長期以來，對噴霧乾燥過程進行了各種試驗和模擬研究，但這些研究並不能揭示噴霧乾燥室內氣體運動狀態，顆粒群的運動軌跡和各種熱力學參數分佈信息，常規的測試手段又很難測得，而這些參數分佈信息對乾燥器沒計和過程優化具有重要指導作用。
  12. The method not only brings a new method for the calculation of the hydrodynamics of ship hull, but also provides an interface effect having no sew between the ship computer aided design ( cad ) and ship computational fluid dynamics ( cfd )

    它不僅為船體水動力的研究帶來了新的處理方法，而且在船舶計算機輔助設計與船舶流體動力學之間起到了無縫的介面作用。
  13. In this paper, the technique of computational fluid dynamics ( cfd ) is adopted to simulate the air distribution in the generator hall, the water - turbine hall and switch station. analyzes and compares the distributions of the velocity field, the temperature field and the pmv - ppd in the workshop by different outlets layouts, outlets quantity and outlets size, bring forward applicable scheme for the engineering, provide the basis of the workshop ventilation design

    對不同的風口大小、風口數量、風口布置位置形成的廠房內速度場、溫度場、 pmv - ppd分佈進行了分析對比，提出適合於工程實際的送風方案，並對所選方案的不同運行工況進行了數值模擬研究，為設計及運行實踐提供了依據。
  14. With the development of computer technology and the advancement of numerical calculation, computational fluid dynamics ( cfd ) has been applied widely in simulating engine ' s chemical non - equilibrium flowfields and has emerged as an extrem ely valuable and cost - effective engineering tool in engine design and flowfield analysis

    隨著計算機技術的發展和數值計算方法的進步，計算流體力學（ cfd ）在發動機的燃燒化學非平衡流場的數值計算研究方面得到了廣泛的應用，並逐漸成為發動機設計和流動分析的一種經濟、有效的手段。
  15. What is done in the paper shows that the unstructured grid has the great potential power and it will be more widely used in the computational fluid dynamics ( cfd ) in the future

    本文的工作表明，非結構網格生成及應用在計算流體力學中具有良好的發展前景。
  16. First we study amply key techniques of four kinds of cfi technique. the calculation algorithms of four kinds of cfi technique are analyzed and developed. after we get the flow field prediction data calculated according to the theory of computational fluid dynamics ( cfd ), we can compute the four images of cfi using the algorithm of the cfi

    首先，詳細研究實現四種cfi技術的關鍵技術，分析建立了四種cfi技術對應的計算演算法，即根據計算流體力學（ cfd ）得到的部分流場預測計算數據后，按照cfi演算法分別計算得到四種流動顯示圖像。
  17. Besides the significance in theory, they can be the standard solutions for computational fluid dynamics ( cfd )

    所得結果具有重要理論意義，可以為數值計算提供標準解。
  18. It is possible to solve n - s equations with the improvement of the hardware and software in computer field, and the development of numeric methods in computational fluid dynamics ( cfd )

    計算機軟、硬體技術日新月異、計算流體力學數值方法日益發展完善，使數值求解三維非定常n - s方程組成為可能。
  19. Nowadays, computational fluid dynamics ( cfd ) has developed quite mature. many cfd commercial softwares appear and the scope related to becomes wider and wider

    現在，計算流體動力學（ computationalfluiddynamics ， cfd ）已經發展得相當成熟，各種cfd商業軟體如雨後春筍般涌現出來，而且涉及的范圍越來越廣。
  20. Especially, the approximation model methods can be applied to the aerodynamic optimization design instead of the time - consuming computational fluid dynamics ( cfd ) analysis to shorten the design process and reduce the computational cost

    在氣動優化設計過程中，用該模型取代耗時的高精度的計算流體動力學分析，可以加速設計過程，降低設計成本。
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